Graduate Research Assistant (GRA)
Tennessee Technological University, TN, USA
Tennessee Tech delivers enduring education, impactful research, and collaborative service.
About Me
I'm Sohag Kumar Saha, currently working as a Graduate Research Assistant at the Smart Grid Lab, Center for Energy Systems Research (CESR), Tennessee Technological University, TN, USA. Currently I'm continuing research towards my Ph.D. in Engineering degree focusing on Power Systems, Energy and Control Systems. My research interests include: Energy Management Systems, Adaptive Critic Design, Controller Hardware-in-the-Loop (CHIL) Simulation, Smart Grid Systems, Integration of Renewable Energy, Battery Energy Storage Systems, PV Hosting Capacity, Peak Shaving, Economic Load Dispatch, Optimization using Meta-heuristic Algorithms and application of Machine Learning in Smart Grids.
In December 2024, I have received Masters of Science in Electrical and Computer Engineering degree from Tennessee Technological University, Cookevillee, TN, USA. Earlier, I have completed my B.Sc. in Electrical & Electronic Engineering (EEE), from Pabna University of Science & Technology (PUST), Pabna, Bangladesh in Jan, 2014 and secured the 1st Class 1st position in the class among 52 students based on merit with CGPA 3.87 (on a scale of 4.00).
After completing graduation, I started career in my own start up named Cloud Tech BD, which is currently one of the leading IT firm in Pabna district of Bangladesh. As a CO-Founder of Cloud Tech BD, I gained experiences in problems solving, leadership skills and management of an organization. Then, I switched to Bangladesh Rural Electrification Board (BREB), Dhaka as an Assistant Engineer, which is the largest electricity distribution utility in Bangladesh. After that, I have worked at Ashuganj Power Station Company Ltd. as a Sub-Divisional Engineer (Electrical) for more than 5 years, which is the 2nd largest power generating station of Bangladesh. Those professional experiences have enriched my technical knowledge, developed leadership skills and improved problem solving abilities. After gaining professional experiences of more than 6 years in some top organizations in Bangladesh, I would like to develop thriving career in research and development which has always been my long cherished dream, therefore working on my interested domain of research focusing on Power Systems and Energy for accomplishing my higher degree through research since last 4 years.
Recent News/Updates
- Sep 2025: Our paper on "Real-Time Implementation of Consensus Tracking Control for Battery Energy Management and SoC Balancing." is submitted at the IEEE 10th Texas Power and Energy Conference (TPEC), College Station, Texas, USA, February, 2026.
- Aug 2025: I'm honored to share that I have been elevated to the grade of Senior Member of IEEE in August 2025! The Senior Member grade is the highest level of IEEE membership for which one may apply. It requires: (i) at least 10 years of professional experience in IEEE-designated fields (ii) demonstration of significant performance over at least 5 years and (iii) peer recognition through a rigorous review process with three impactful recommendaton letter from IEEE Senior Members. Only about 10% of nearly half a million IEEE members have achieved this distinction, making it a truly meaningful milestone in my professional journey. I'm deeply grateful to my mentors, colleagues, and peers for their guidance and support. Looking forward to continuing meaningful contributions to the engineering community and IEEE.
- Jul 2025: Our paper on "An Enhanced Linear Active Disturbance Rejection Controller-Based Dual Active Bridge Converters for EV Charging" was accepted for publication and will be presented at IEEE Energy Conversion Conference and Expo (ECCE), Philadelphia, Pennsylvania, USA, October 19-23, 2025.
- Jun 2025: The abstract of the two of our recent work on enery management systems was accepted in 24th Power Systems Computation Conference which will be held in Limassol, Cyprus in 08-12 Juner, 2026. The final papers of both are under preparation.
- Feb 2025: Our paper on "Modbus TCP/IP Based BESS Plant Controller Operations for a Peak Shaving Application" was accepted for Publication and Presented at 2025 IEEE 9th Texas Power and Energy Conference (TPEC), College Station, Texas.
- Dec 2024: Received Masters of Science in Electrical and Computer Engineering degree from Tennessee Tech and continue to finish the ongoing PhD in Engineering degree majoring in Electrical Engineering with a focus on "Power Systems and Control".
- Oct 2024: Our paper, "Multivariate Optimal Hybrid Deep Learning Model for Forecasting of Day-Ahead Solar Irradiance," was accepted and presented at the IEEE North American Power Symposium (NAPS) 2024, EL Paso, Texas.
- May 2023: A poster on Peak Shaving using Battery Energy Storage Systems via HIL was accepted at the Appalachian Energy Summit 2023, North Carolina, USA.
- May 2023: Three of our papers on MiTM attacks, anomaly detection in smart grids, and digital twin applications were accepted at the IEEE World AI IoT Congress (AIIoT) 2023, Seattle, WA, USA.
- Apr 2023: A poster on automatic dust detection in solar PV panels was accepted at the 18th Annual Research and Creative Inquiry Day-2023 at Tennessee Tech.
- Feb 2023: I was invited to review papers for the IEEE PES General Meeting conference.
- Aug 2022: I joined as a Graduate Teaching Assistant/Instructor at the Dept. of Electrical and Computer Engineering at Tennessee Tech University.
- May 2022: I received the Bangladesh Sweden Trust Fund scholarship to cover the travel expenses for my PhD study at Tennessee Tech.
- Aug 2021: I joined the Smart Grid Lab as a Graduate Research Assistant at the Center for the Energy Systems Research (CESR), Tennessee Tech.
- Aug 2021: Resigned from the Sub-Divisional Engineer (Electrical) position from Sub-station Division of Ashuganj Power Station Company Ltd. (APSCL), which is one of the largest and first government power generation utility in Bangladesh to join at the Ph.D. in Engineering program at Tennessee Tech, USA.
- Jul 2021: Got USA student visa (F1) approval from US Embassy in Dhaka, Bangladesh to pursue higher study in Tennessee Tech University, TN, USA from 2021 to 2026.
- Apr 2021: Received full funded Ph.D. and Masters scholarship from multiple university in USA, South Korea, Malaysia and Japan.
- Mar 2020: Got Promoted to Sub-Divisional Engineer position (Grade-6) from Assistant Engineer (Grade-8) at Ashuganj Power Station Company Ltd. (APSCL), Ashuganj, Brahmanbaria, Bangladesh. Web: https://www.apscl.gov.bd
- Jul 2018: Visited China to participate in month long seminar and training session on "Upgradation and Renovation of Smart Grid in Bangladesh". Visited multiple places in China such as Kunming (Yunnan province), Changsha (Hunan province), and Xiamen (Fujian province).
- Dec 2017: Our paper, "Efficient Rectenna Design for Harvesting Microwave Power from SSPS System," was accepted and presented at the IEEE 2nd International Conference on Electrical and Electronic Engineering (ICEEE), Rajshahi, Bangladesh, December 2017.
- Dec 2016: Our paper, "Novel approach of antenna array with beam steering technology for microwave power transmission from SSPS system," was accepted and presented at the IEEE 2nd International Conference on Electrical, Computer and Telecommunication Engineering (ICECTE), Rajshahi, Bangladesh, December 2016.
- Aug 2016: Got full time permanent position/job offer from one of the largest and first power generation plant i.e. Ashuganj Power Station Company Ltd. (APCL), Ashuganj, B.Baria, Bangladesh as an Assistant Engineer (Electrical) [Grade-8] with a merit position of third in combind merit list of very competitive recruitment exam taken by BUET, Bangladesh and joined at 16th Aug. 2016; by resigning from the Assistant Engineer (Revenue), Bangladesh Rural Electrification Board (BREB) at 14th Aug. 2016. Web: https://www.apscl.gov.bd/
- Aug 2015: Stood first in terms of merit in a very competitive recruitement exam of the largest power distribution utility organization under Bangladesh government- as an Assistant Engineer (Construction of Switching Substation in Rural Electrification Program: CSS-REP) "Bangladesh Rural Electrification Board (BREB)" in Dhaka, Bangladesh and joined at Aug 2nd, 2015. Then, at 19th January 2016, secured 4th position in the combind recruitment test for the position of Assistant General Manager (AGM): O&M (Operation and Maintainance) and posted in Sunamganj Palli Bidyut Samity under Bangladesh Rural Electrification Board (BREB). From there, at 14th March, 2016, again stood second position in terms of merit in the combind recruitment exam of BREB as Assistant Engineer (Electrical) [Grade-9] under Revenue budget permanent position and posted at the Sub-station construction and monitoring division, Dhaka, Bangladesh. Web: https://www.reb.gov.bd/
- Apr 2014: Received the Bangladesh Association of Software and Information Services (BASIS) Outsourcing Award-2014 in District Category of Bangladesh for outstanding performance as an outsourcing-based freelance worker on Web Development category in Upwork (formerly oDesk, Elance) and Level-2 Fiverr Seller. Award information or source link: BASIS Outsourcing Award 2014 Winners
- Jan 2014: Finished the Bachelor of Science in Electrical and Electronic Engineering degree from Pabna University of Science and Technology (PUST), Pabna, Bangladesh and final result published in 2nd January 2014 with a CGPA of 3.87 out of 4.00 (achieved Honours grade with Distinction) and consecutively stood first in the merit list in all of the eight semesters of undergrad study. Web: https://www.pust.ac.bd
- Oct 2013: Initiated our first start-up company named "Cloud Technology BD" (https://www.cloudtechbd.net) as Co-founder and Chief Executive Officer (CEO), which was intended to provide support to develop various projects based on web development according to client's requirements. Projects were mainly based on PHP, SQL, WordPress, HTML, CSS, JavaScript, Python etc. Design and Development of Business System Managment Softwares. Services include educating information and communication technology (ICT) to Secondary and Higher Secondary School level students by offering several training and courses on IT literacy.
- Mar 2009: Started my undergrad study on 31st March 2009 with the department of Electrical and Electronic Engineering of Pabna University of Science and Technology (PUST) at Pabna in Bangladesh. Web: https://www.pust.ac.bd
Professional Experiences
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2021 Present
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2022 2023
Graduate Teaching Assistant (GTA)/Instructor
Tennessee Technological University, TN, USA
TA/Instructor for Intro to Digital Design Lab (ECE 2140/3160)
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2020 2021
Sub-Divisional Engineer (SDE), Electrical, Sub-Station Maintenance Division
Ashuganj Power Station Company Ltd. (APSCL), B.Baria, Bangladesh
The vision of APSCL is - "To become the leader in power generation in Bangladesh in line with the government's target to provide electricity to all" and the mission of APSCL is- "Empowering Bangladesh by expanding the company's power generation capacity to meet the growing demand of the country through efficient and effective management of facilities and acquisition of capabilities for providing quality electricity"
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2016 2020
Assistant Engineer (AE), Electrical, Sub-Station Maintenance Division
Ashuganj Power Station Company Ltd. (APSCL), B.Baria, Bangladesh
APSCL is the second largest power generation organization in Bangladesh in Government Sector
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2016 2016
Assistant Engineer (Electrical), Sub-Station Construction and Monitoring Division
Bangladesh Rural Electrification Board (BREB), Bangladesh
BREB is the largest power distribution utilities in Bangladesh
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2016 2016
Assistant General Manager (AGM), Operation and Maintenance
Sunamganj PBS, Bangladesh Rural Electrification Board (BREB), BD
BREB is the largest power distribution utilities in Bangladesh
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2015 2016
Assistant Engineer (Switching Sub-Staton Construction for Rural Electrification Program)
Bangladesh Rural Electrification Board (BREB), BD
BREB is the largest power distribution utilities in Bangladesh
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2013 2015
Co-Founder and CEO
Cloud Technology BD, Pabna, Bangladesh
Committed to Deliver Unique Services through IT, Web Application, Web Design, Web Development and Software Development
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2013 2015
Freelance Web Developer
Upwork (Former Odesk and Elance), Freelancer and Fiverr (Level-2)
Professional Web Design and Development Services at Affordable Budget
Educational Background
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Doctor of Philosophy in Engineering 2021-25
Ph.D. in Electrical & Computer Engineering
Graduate School
Tennessee Technological University, TN, USA -
Master of Science in Engineering 2021-24
M.Sc. in Electrical & Computer Engineering
Tennessee Technological University, TN, USA
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Bachelor of Science in Engineering2009-13
B.Sc. in Electrical & Electronic Engineering
Pabna University of Science & Technology, Pabna, Bangladesh
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H.S.C. Examination2006-2008
Group of Science
Government Debendra College, Manikganj, Bangladesh
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S.S.C. Examination2001-2006
Group of Science
Batila High School, Manikganj, Bangladesh
Honors, Awards and Scholarships
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2025Elevated to IEEE Senior Membership Grade in August 2025
Elevated to the Senior Membership grade of IEEE in August 2025! The Senior Member grade is the highest level of IEEE membership for which one may apply. It requires: (i) at least 10 years of professional experience in IEEE-designated fields (ii) demonstration of significant performance over at least 5 years and (iii) peer recognition through a rigorous review process with three impactful recommendaton letter from IEEE Senior Members. Only about 10% of nearly half a million IEEE members have achieved this distinction, making it a truly meaningful milestone in my professional journey.
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2025NSF Grant and CESR's travel grant for participation in TPEC 2025 conference
Received the National Science Foundation (NSF) grant from conference authority for participating in the Texas Power and Energy Conference (TPEC) 2025, College Station, Texas, to present both research article and poster along with travel grant from the Center for Energy Systems Research (CESR), Tennessee Tech University.
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2024Travel grant from CESR, Tennessee Tech for participation in NAPS 2024 conference
Travel Grant from the Center for Energy Systems Research (CESR), Tennessee Tech University, for participating in the North American Power Symposiums 2024, El Paso, Texas, conference to present a research article.
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2023Travel grant from CESR for participation in ARC Energy Summit Conference 2023
Received a Travel Grant from the Center for Energy Systems Research (CESR), Tennessee Tech University, for participating in the Appalachian Energy Summit 2023 conference in Boone, North Carolina, to present a research poster.
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2022Bangladesh Sweden Trust Fund Scholarship
Received the prestigious Bangladesh Sweden Trust Fund Scholarship which is covered the travel grant from Bangladesh to USA for persuing PhD in Tennessee Tech.,USA
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2021Graduate Assistantship Award for PhD Study
Received fully funded Ph.D. scholarship through Graduate Assistantship from Tennessee Tech University, TN, USA.
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2014University Gold Medal- Academic Achievement Award
University Gold Medal Award from Pabna University of Science and Technology due to Outstanding academic result in B.Sc. in Engineering Examination. My merit position was 1st Class 1st in the class among 52 students with CGPA 3.87 (Scale of 4.00).
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2014BASIS Outsourcing Award- Best Freelancer of the Year-2014
Won the BASIS ( Bangladesh Association of Software and Information Services) Award in 2014 for my outstanding performance on Outsourcing Web development works in the previous year i.e. 2013. It's one of the first achievement of my career and glad to receive such kind of recognition from the top authority of the country.
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2013Secured 1st position based on merit in all academic terms during Bachelor level
I am very happy to share that, I secured the first position in the dept. of Electrical and Electronic Engineering at Pabna University of Science and Technology consecutively in all academic terms (from first semester to 8th semester). It is a matter of pleasure that, I was the only student of our session of Pabna University of Science & Technology (PUST), who secured the top position in all academic terms. Thanks to almighty, my parents, teachers, friends and well wishers, because without the support of them, it would not be possible to keep the successful journey. I am now looking forward to acheiving more in my future to build a successful career in Electrical Engineering.
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2009-2013University Merit Scholarship from EEE Dept. of PUST
Recipient of Merit based scholarship from EEE department of PUST. It was my pleasure to be proud member of the dept. of Electrical & Electronic Engineering (EEE) of Pabna University of Science & Technology (PUST), BD.
Visitors Counter
Research Domains
Current Research Interests
- Renewable Energy Integration
- Micro-grid & Smart-Grid
- Economic Load Dispatch
- Metaheuristic Optimization Problems
- Peak Shaving Strategies/Analysis
- PV Hosting Capacity analysis
- Controller Hardware in Loop (HIL)
- Power System Operation & Planning
- Energy Storage Devices
- Power Electronics Converters/Inverters
- Power Quality & System Protection
- AI and ML in Power Systems
Software Skills
- MATLAB Programming & Simulink
- Typhoon HIL Simulation
- OpenDSS Simulation
- C & C++ Programming
- Python Programming
- LATEX & MS Word
- MS Excel, Visio & Powerpoint
- ADS (Advanced Digital Design)
- PLECS & LTSpice
- Digital Tool
- Waveforms (Analog Discovery 2)
- Anysys Electromagnetics
Selected Publications
The selected publication list is added in the following section.
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Real-Time Implementation of Consensus Tracking Control for Battery Energy Management and SoC Balancing.
Conference Paper Submitted to the IEEE 10th Texas Power and Energy Conference (TPEC), College Station, Texas, February, Year: 2025. (Paper Under Review)
Abstract
This paper presents the real-time implementation of a consensus tracking control method for battery energy management systems (BEMS) and state of charge (SoC) balancing. The consensus tracking controller is designed by applying linear quadratic regulator (LQR) control on the battery linearized model in MATLAB, where the state variables are the battery's output power and energy. The LQR weighting matrices are selected to give reasonable overshoot, consensus mismatch, and consensus convergence time. A three-battery model is used from the hardware-in-the-loop laboratory testbed and open platform (HILLTOP) to integrate the consensus tracker and its related communication parameters. One battery uses a hardware vendor controller, while the other two are controlled via Typhoon HIL software controllers. The hardware-in-the-loop (HIL) controller for battery 1 acts as the leader, with batteries 2 and 3 functioning as followers in the consensus control process. The results demonstrate that the output powers of all batteries reach consensus, aligning with the dynamic power setpoint, and maintain balanced SoC levels, effectively preventing over-charging or over-discharging.
An Enhanced Linear Active Disturbance Rejection Controller-Based Dual Active Bridge Converters for EV Charging.
Conference Paper IEEE Energy Conversion Conference and Expo (ECCE), Philadelphia, Pennsylvania, USA, October 19-23, Year: 2025. (Paper Accepted)
Abstract
Dual active bridge (DAB) converters are a highly desirable converter topology for high-power battery charging in transportation electrification applications. This is mainly due to their bidirectional power flow capability and high power quality. Nevertheless, these converters may experience low-frequency output ripple due to system nonlinearities and power inconsistencies, hence diminishing output power quality and battery longevity. This paper presents an active disturbance rejection control (ADRC) algorithm to deal with the disturbances of the DAB converter. The enhanced ADRC controller estimates disturbances and reduces high-frequency gain, low-frequency ripple, and requirements for current sensors. Real-time simulations have been carried out on a Typhoon HIL 606 device to evaluate the proposed controller performance, demonstrating its rapid dynamic performance under diverse operating conditions.
Modbus TCP/IP Based BESS Plant Controller Operations for a Peak Shaving Application
Conference Paper 2025 IEEE Texas Power and Energy Conference (TPEC), Feb. 09-11, Year: 2025
Abstract
Battery energy storage systems (BESS) coupled with vendor plant controller and reliable communication can provide practical peak shaving solutions to the utility grid. This can be achieved by incorporating day-ahead charge/discharge set-point evaluation strategies in the BESS plant controller. This paper implements a simple peak shaving strategy in the real-time hardware-in-the-loop laboratory testbed and open platform (HILLTOP), detailing the integration process for the BESS inverter, plant controller, and conventional Modbus TCP/IP communication protocol. Also, the potential compatibility of the TCP/IP-based BESS plant information and control signals with the IEC 61850 communication standard has been investigated.
Multivariate Optimal Hybrid Deep Learning Model for Forecasting of Day-Ahead Solar Irradiance with Meteorological Constraints
Conference Paper 2024 IEEE North American Power Symposium (NAPS), October 13-15, Year: 2024
Abstract
With the growing integration of solar power generation into smart grids, accurate solar irradiance forecasting is of paramount importance for efficient grid operation and renewable energy management. In this paper, a data decomposition approach with two different methods of deep learning and grid search optimization was combined to develop a better hybrid model to forecast solar irradiance. The proposed model combines spatial and temporal information to improve forecasting accuracy by considering the impact of meteorological constraints such as global horizontal irradiance, temperature, relative humidity, wind speed, cloud type, direct normal irradiance, diffuse horizontal irradiance, and solar zenith angle. In addition to the model architecture, this work incorporates hyper-parameter optimization to fine-tune the parameters of the model for optimal performance. The design of the model ensures that the system adapts to the specific characteristics of the solar irradiance data and meteorological conditions under consideration. The proposed hybrid model was evaluated using real-world data to outperform traditional forecasting methods in terms of accuracy. The results of the proposed hybrid model indicate better prediction ability as measured by four parameters (lower RMSE and MAE, fewer epochs, and a higher \({R^2}\) co-efficient).
Implementing Man-in-the-Middle Attack to Investigate Network Vulnerabilities in Smart Grid Test-bed
Conference Paper 2023 IEEE World AI IoT Congress (AIIoT), Year: 2023
Abstract
The smart-grid introduces several new data-gathering, communication, and information-sharing capabilities into the electrical system, as well as additional privacy threats, vulnerabilities, and cyber attacks. In this study, Modbus is regarded as one of the most prevalent interfaces for control systems in power plants. Modern control interfaces are vulnerable to cyber-attacks, posing a risk to the entire energy infrastructure. In order to strengthen resistance to cyber attacks, this study introduces a test bed for cyber-physical systems that operate in real-time. To investigate the network vulnerabilities of smart power grids, Modbus protocol has been examined combining a real-time power system simulator with a communication system simulator and the effects of the system presented and analyzed. The goal is to detect the vulnerability in Modbus protocol and perform the Man-in-the-middle attack with its impact on the system. This proposed testbed can be evaluated as a research model for vulnerability assessment as well as a tool for evaluating cyber attacks and enquire into any detection mechanism for safeguarding and defending smart grid systems from a variety of cyberattacks. We present here the preliminary findings on using the testbed to identify a particular MiTM attack and the effects on system performance. Finally, we suggest a cyber security strategy as a solution to address such network vulnerabilities and deploy appropriate countermeasures.
Anomaly Detection Techniques in Smart Grid Systems: A Review
Conference Paper 2023 IEEE World AI IoT Congress (AIIoT), Year: 2023
Abstract
Smart grid data can be evaluated for anomaly detection in numerous fields, including cyber-security, fault detection, electricity theft, etc. The strange anomalous behaviors may have been caused by various reasons, including peculiar load usage patterns of the consumers, grid infrastructure issues, blackouts, outside cyberattacks, or energy fraud. Recently, anomaly detection of the smart grid has attracted a large amount of interest from researchers, and it is widely applied in a number of high-impact fields. Implementing effective anomaly detection for a variety of aberrant behaviors is one of the smart grid's biggest challenges. In the context of smart grids, we provide a scoping overview of research from recent advances in anomaly detection in this work. We categorize our study from numerous aspects for deep understanding and inspection of the research challenges so far. Finally, after analyzing the gap in the reviewed paper, the direction for future research on anomaly detection in smart-grid systems has been provided briefly.
A New Era of Mobility: Exploring Digital Twin Applications in Autonomous Vehicular Systems
Conference Paper 2023 IEEE World AI IoT Congress (AIIoT), Year: 2023
Abstract
Digital twins (DTs) are digital copies of real-world items or processes that can learn from their surroundings to more accurately reflect, validate, and mimic the physical twin’s behavior in the here and now and into the future. DTs are becoming increasingly prevalent in a variety of fields, including manufacturing, automobiles, medicine, smart cities, and other related areas. In this paper, we presented a systematic review of DTs in the autonomous vehicular industry. We addressed DTs and their essential characteristics, emphasizing accurate data collection, real-time analytics, and efficient simulation capabilities while highlighting their role in enhancing performance and reliability. Next, we explored the technical challenges and central technologies of DTs. We illustrated the comparison analysis of different methodologies that have been used for autonomous vehicles in smart cities. Finally, we addressed the application challenges and limitations of DTs in the autonomous vehicular industry.
Acute lymphoblastic leukemia detection approach from peripheral blood smear using color threshold and morphological techniques
Journal Paper International Journal of Electrical & Computer Engineering (ISSN: 2088-8708), Volume 12, Issue 4, Year: 2022
Abstract
Acute lymphoblastic leukemia (ALL) has recently been one of the most significant concerns in cancers, especially child and old age. Therefore, crying needs to diagnose leukemia as early as possible, increasing the treatment options and patient survivability. Some basic handicraft leukemia detection processes have been introduced in this arena though these are not so accurate and efficient. The proposed approach has been introduced an automated ALL recognition system from the peripheral blood smear. Initially, the color threshold has been applied to segment lymphocytes blood cells from the blood smear. Some post-processing techniques like morphological operation and watershed have been executed to segment the particular lymphocytes cell. Finally, we used a support vector machine (SVM) classifier to classify the cancerous image frames using a statistical feature vector obtained from the segmented image. The proposed framework has achieved the highest accuracy of 99.21%, the sensitivity of 98.45%, specificity of 99%, the precision of 99%, and F1 score of 99.1%, which has beat existing and common states of art methods. We are confident that the proposed approach will positively impact the ALL detection arena.
Efficient Rectenna Design for Harvesting Microwave Power from SSPS System
Conference Paper 2nd International Conference on Electrical & Electronic Engineering (ICEEE), Year: 2017
Abstract
The purpose of this work is to design an efficient and simple ground based rectenna system for receiving microwave power. The performance of designed system is tested in Advanced Design System (ADS) simulation environment. This system can receive microwave power from Space Solar Power Satellite (SSPS) system and convert microwave energy into Direct Current (DC). The ground based rectenna consists of microstrip patch antenna array with rectifier circuit using Schottky diode. The rectifier circuit consists of low pass filter, diode, matching circuit and Dickson charge pump voltage multiplier circuit. This multiplier circuit increases output voltage considering small input power. In this paper, 8 elements microstrip patch antenna array operated at 2.45 GHz frequency with high efficient rectifier circuit is designed. The simulation results show better gain and directivity of proposed rectenna system which increase the performance of existing SSPS systems.
Novel approach of antenna array with beam steering technology for microwave power transmission from SSPS system
Conference Paper 2nd International Conference on Electrical, Computer & Telecommunication Engineering (ICECTE), Year: 2016
Abstract
A novel approach of antenna array with beam steering technology is addressed in this paper which can transmit microwave power from Space Solar Power Satellite (SSPS) system. Array antennas are critically important component in the development of future wireless systems with applications in communications, radar and satellite technologies. The Microwave Power Transmission (MPT) technology is a key technique for SSPS system, which is being highlighted as a technology capable of solving global environment problem as well as the energy problem. This paper presents a robust technique for MPT which is able to steer the main beam at any desired direction in the presence of array imperfections. The proposed beamforming technique is proficient to cancel the directional interferences. The simulation results show that the proposed SSPS scheme has better performance than the existing systems.
Design & Simulation of 8-Shape Slotted Microstrip Patch Antenna
Journal Paper World Applied Sciences Journal (WASJ), Volume 31, Issue 6, March 2014, Pages 1065-1071, ISSN:1818-4952, Year: 2014
Abstract
This paper presents an 8-shape slotted microstrip patch antenna. The antenna is fed by microstrip transmission line. The proposed antenna is simulated with the help of commercially available GEMS software based on the parallel FDTD algorithm. The antenna is designed by FR4 substrate and ground plane with an area 50mm×40mm×1.60 mm. The designed antenna generates three resonant modes at 2.12 GHz, 6.98 GHz and 13.84 GHz respectively. The bandwidths of the antenna (-10 dB) of the three frequencies are 25.75%, 6.13% and 20.63% respectively. The return loss (S ) characteristics for the 11 three bands are -41.95 dB, -22.68 dB and -23.15 dB respectively. The 3D radiation patterns of the proposed antenna are provided in the paper.
Present Situation of Renewable Energy in Bangladesh: Renewable Energy Resources Existing in Bangladesh
Journal Paper Global Journal of Researches in Engineering (GJRE-F: Electrical and Electronic Engineering), Volume 13, Issue 5, Online ISSN: 2249-4596 & Print ISSN: 0975-5861, Year: 2013
Abstract
Bangladesh is a developing country, it has probability to progress towards increasing the demand of energy. Now a day, Bangladesh is facing energy crisis. In Bangladesh, around 70% of people having lack accesses to electricity and most of them are living in the village. Among them about 40% of them are living in below poverty line. On the other hand climate change puts addition threats to development. To combat these situations, renewable energy technology stands out to be one of the prospective sources to meet its unprecedented energy demand and can contribute to achieve sustainable development as a country has a plentiful supply of renewable sources of energy. This paper investigates the prospect, trend, utilization and its technology as well as reviews the policy and institutions and opportunities of renewable energy technology towards sustainable development and climate change mitigation is context of Bangladesh.
Teaching Experiences
Teaching is the work that I love to do. It is a passion for me rather than a profession. Choosing to work as a teacher is more than just a job. You must possess an infinite amount of tolerance and compassion. For the same reasons that make it a great profession—courage and dedication—it is also a noble calling. In spite of the difficulty and weariness involved, a good teacher must have the guts to do what's necessary for the benefit of their students.
Teaching Experiences
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2022 2023
Graduate Teaching Assistant/ Instructor
I served as an Instructor of the course entitled "Intro to Digital Systems (ECE 2140/ ECE 3160)" at the dept of Electrical and Computer Engineering at Tennessee Technological University, TN, USA since fall 2022 semester to the spring 2023 semester.
Course Description:
Hardware considerations and performance of combinational and sequential digital devices including gates, flip-flops, multiplexers, and decoders.
Course Objectives:
Upon completion of this course the student will be able to:
1. Effectively use digital laboratory equipment,
2. Recognize and avoid many common digital circuit problems,
3. Measure the electronic and logical characteristics of logic devices,
3. Construct, design, and test combinational and sequential logic circuits using appropriate techniques, and
5. Write technical reports
Topics to be covered:
1. Introduction to digital test equipment and laboratory reports
2. HC logic family timing: propagation delay and rise/fall times
3. HC logic family I/O: voltage and current characteristics
4. HC logic family decoupling, noise margin, and unused input pins
5. Feedback oscillation problem and LED drivers
6. Construction and testing of combinational logic circuits
7. Verification of Boolean algebra and logic minimization techniques
8. Design and testing of sequential logic
9. Practical design of combinational logic circuits
10. Logic implementation using multiplexors and decoders
11. Techniques for a combinational design project
Reference Texts:
M.M. Mano & M.D. Ciletti, Digital Design: With an Introduction to the Verilog HDL, VHDL, and SystemVerilog (6th Edition), Pearson, 2018. ISBN-13: 978-013-454989-7
Link of Course: http://jwbruce.info/teaching/ece2140/
Teaching Background
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2016 2021
Teaching Power Systems to Intern Students at APSCL
During my work at Ashuganj Power Station Company Limited, I regularly taken the internship classes and stuff training at the APSCL Power Plant Training Centre (PPTC) for man power development. I taught Transformers, Generators, Different kinds of machines, Electrical Safety, Different testing procedures like High Voltage insulation registance tests, Short ciruit tests of Transformer, Open Circuit Test of transformer, Ratio test of CT and PT, LA or surge arrester test, Testing of transformer using CPC 100, CP TD1 (Ten Delta testing kit) from Omicron, Contact resistance test of High Voltage circuit breaker, Installation of Circuit breaker in 132 kV and 230 kV substation, Earth resistance test, regular maintenance, breakdown maintenance and emergency maintenance of sub-station components etc.
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2013 2015
Teaching Web Design and Development
Actually, I love to teach to my students. While I started my start-up business, I regularly shared my knowledge and real problem solving experiences with my fellow colleagues and students. I taught how to design and develop website with the following tools and languages: HTML, CSS, JS, PHP, WordPress Theme Development and WordPress theme customization.
CONTACT INFO
I would be happy to respond if you need any information or assistance from my end. Though I have limited availability besides my daily stuffs but, in case of any queries just reach out to me through email or phone call, so that, I could response at my convenience.
- Mobile: +1-931-252-9504
- sohag@ieee.org
- ssaha42@tntech.edu
- engr.sohag.pust@gmail.com
AT SMART GRID LAB Lab
You can find me at my lab: Smart Grid Lab, Clement Hall, Room 103, Cookeville, TN-38505.
I am at my office every day from 8:00 am to 5:00 pm except Saturday, Sunday and Govt. Holiday's. It is preffered to fix an appointment to meet me at Smart-grid lab, so that I might be available besides my regular class, lab works and TA tasks/assignments. You may consider a call or email to fix an appointment to meet me.
AT THE CLASS
This option was available until the Spring 2023 semester for students in my Introduction to Digital Systems lab class at Brown Hall, Room 407. At that time, students could request an appointment by email if they needed academic assistance with the course material. Currently, I am not serving as a teaching assistant or instructor. Instead, I am working full-time as a research assistant at the Smart Grid Lab, Center for Energy Systems Research (CESR), Tennessee Tech. I am available there at the Clement Hall (Room 103) in working days.
AT MY HOME
I am living at 1801 Lee Avenue, Apt. B24, Cookeville, Tennessee-38501, USA.
I am available at my home at weekend (saturday, sunday and govt. holiday's) and also at the evening, but you may consider a call to fix an appointment.