Peer-Reviewed Journal Papers by Md Multan Biswas
Sustainable Energy Technologies and Assessments, Jun 2022
The Government of Bangladesh (GOB) has set a goal to produce 6000 MW of electricity solely from s... more The Government of Bangladesh (GOB) has set a goal to produce 6000 MW of electricity solely from solar Photovoltaic (PV) to ensure energy usage and sustainable development for every region by the year 2041. To meet this target, we have proposed a recently innovated floating PV (FPV) fed 1.4 MW capacity mini-grid system for the remote western coastal region of the country. Considering various practical load profiles, the paper contains an elaborate simulation of electrical characteristics for the modeled supply system. The simulation results show an excellent agreement with different levels of desired voltage, current, and power. Then, in-depth techno-economic and environmental analyses are presented to address the feasibility and benefit of the mini-grid. The optimum Cost of Energy (COE) from the generation facility is evaluated as 18.29 US cents which is consistent with the current tariff. We have estimated that 2500 households and 120 Electric-Vehicle (EV) scooters can save an emission of 228 and 466.56 metric tons, respectively, of Carbon Dioxide (CO2) per year. Finally, an experimental PV generation-based case study is demonstrated to emphasize the techno-economic impacts of the proposed mini-grid. For the electrical characteristics and techno-economic simulation, we have adopted MATLAB/Simulink and HOMER Pro software, respectively.
Energies, 2021
In this paper we present an approach for real-time simulation and Hardware-in-the-Loop (HIL) test... more In this paper we present an approach for real-time simulation and Hardware-in-the-Loop (HIL) testing of Modular Multilevel Converters (MMCs) that rely on switching models while supporting system level analysis. Using the Latency Based Linear Multistep Compound (LB-LMC) approach, we achieved a 50 ns simulation time step for systems composed of several MMC converters and for converters of various complexity. To facilitate system level testing, we introduce the use of a serial communication-based (Aurora) interface for HIL testing of MMC converters and we ana-lyzed the effect that communication latency has on the accuracy of the HIL test. The simulation and HIL results are validated against an MMC laboratory prototype.
Electric Power Components and Systems, Apr 2016
To ensure dependable and sustainable supply of electricity, a modern power grid is necessary whic... more To ensure dependable and sustainable supply of electricity, a modern power grid is necessary which will be smarter. On this ground, United States and some developed countries in Europe, Asia, and Australia have carried out some significant activities to formulate and promote a pathway for the evolution of the next generation intelligent grid. Implementation of Smart Grid can be a better tool to develop greener digital Bangladesh. This new technology ensures effective control of electric supply and demand using information technology, and assures the potential use of eco-friendly power generation. The objective of this paper is to present a roadmap that could be used as guidance for the development of smart grid architecture based on functions and technological challenges for this south Asian nation. This paper contains a discussion on the functions of smart grid from perspective of the country. The key technological challenges to implement this new intelligent grid have been outlined and their potential remedies are proposed. The paper also illustrates the ongoing initiative taken up by Bangladesh government towards smarter grid. The most challenging part is to run this new technology in a profitable manner and to ensure this, some pilot projects are needed to be demonstrated.
Smart Grid and Renewable Energy, Feb 2013
A smart grid will require, to greater or lesser degrees, advanced tools for planning and operatio... more A smart grid will require, to greater or lesser degrees, advanced tools for planning and operation, broadly accepted communications platforms, smart sensors and controls, and real-time pricing. The smart grid has been described as something of an ecosystem with constantly communication, proactive, and virtually self-aware. The use of smart grid has a lot of economical and environmental advantages; however it has a downside of instability and unpredictability introduced by distributed generation (DG) from renewable energy into the public electric systems. Variable energies such as solar and wind power have a lack of stability and to avoid short-term fluctuations in power supplied to the grid, a local storage subsystem could be used to provide higher quality and stability in the fed energy. Energy storage systems (ESSs) would be a facilitator of smart grid deployment and a " small amount " of storage would have a " great impact " on the future power grid. The smart grid, with its various superior communications and control features, would make it possible to integrate the potential application of widely dispersed battery storage systems as well other ESSs. This work deals with a detailed updated review on available ESSs applications in future smart power grids. It also highlights latest projects carried out on different ESSs throughout all around the world.
Bangladesh is facing daunting energy challenges that are merely likely to deteriorate over the ne... more Bangladesh is facing daunting energy challenges that are merely likely to deteriorate over the next few years. Further, over fifty percent of Bangladesh's inhabitants live without electricity, and the grid expansion rate to connect rural areas is threatened by the looming capacity shortage. By acknowledging the potential of renewable energy technologies (RETs) and associated energy storage, Bangladesh could possibly meet its unprecedented energy demand, thus increasing electricity accessibility for all and as well as financial growth. This paper represents a baseline overview of prospects of renewable energy recourses, and a survey on energy storage systems related to RETs, and estimates the potential for commercial applications of these resources now and in the future All the latest information regarding renewable energy and associated energy storage systems have been collected from different government and private sectors including NGOs which are working with solar home systems (SHSs), wind power generation, biomass and biogas energy, hydro energy and battery as energy storage. The paper concludes that the RETs create income-generating activities for village people while reducing environmental problems, like deforestation and indoor air pollution from cooking with poor quality fuels.
This paper presents the potential applications of flexible AC transmission system (FACTS) control... more This paper presents the potential applications of flexible AC transmission system (FACTS) controllers, such as the static VAR compensator (SVC), using the latest technology of power electronic switching devices in the fields of electric power transmission systems with controlling the voltage and power flow, and improving the voltage regulation. Again, the static VAR compensators are being increasingly applied in electric transmission systems economically to improve the post-disturbance recovery voltages that can lead to system instability. A SVC performs such system improvements and benefits by controlling shunt reactive power sources, both capacitive and inductive, with high-tech power electronic switching devices. This work is presented to solve the problems of poor dynamic performance and voltage regulation in an 115KV and 230KV transmission system using SVC.
International Journal of Engineering and Technology , Feb 2012
A prototype of wireless power transmission (WPT) system has been designed in small scale which ca... more A prototype of wireless power transmission (WPT) system has been designed in small scale which can be used to drive portable electronic devices. For power transmitting purpose RF/microwave has been used. A detail discussion on transmitting and receiving antenna of WPT system has been presented. The step by step design method has been used in designing the entire system. Then, a simple practical approach has been demonstrated. The detail performance on the practical implementation of wireless power transmission system has been analyzed. The 4GHz designed system provides 2W receiving power when the transmitter sends 20W from a distance of 52m. The difficulties and limitations for implementing the designed model in the laboratory have been featured. Then, the ideas for overcoming the limitations also have been proposed.
Stability is an important constraint in power system operation and control. Power system stabilit... more Stability is an important constraint in power system operation and control. Power system stability is understood as the ability to regain an equilibrium state after being subjected to a physical disturbance. This paper presents steady state stability analysis of power system and its behavior in accordance with the locations of fault. Principal among these are the determination of system stability on the consideration of Eigen values in steady state condition. This provides appropriate strategy to have a quick decision on the system's steady state behavior. The simulation results show the severity of fault and help to make a quick decision that whether it is possible to get the system in normal operation or not.
Peer-Reviewed Conference Papers by Md Multan Biswas
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021
In this paper, a speed sensing mechanism of a surface mount permanent magnet synchronous machine ... more In this paper, a speed sensing mechanism of a surface mount permanent magnet synchronous machine based on the internal model principle has been presented for an electric vehicle (EV) application. The current controller of the machine has been implemented adopting Lyapunov energy function based analysis so as to achieve global stability over the full range of operations. Performance of the proposed control come estimation architecture has been tested with an electric vehicle based application. The internal model based estimation determines the back emf of the machine and then by simple algebraic manipulations, the speed of the machine is calculated. An LC filter is connected at the machine terminals after the inverter to avoid impressing pulse width modulated voltage on the machine terminals so as to increase the life span of the machine. The proposed control come estimation architecture is verified via computer simulations using MATLAB/Simulink and PLECS domain and various case study results are presented to prove the efficacy of the control systems. Several case studies have been presented for the motoring as well as regenerative braking mode of the EV powertrain system.
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021
A photovoltaic (PV) system based grid-connected current source inverter has been investigated in ... more A photovoltaic (PV) system based grid-connected current source inverter has been investigated in this paper. In this paper, a photovoltaic (PV) system based grid-connected current source inverter has been investigated. For obtaining the maximum power from the PV system, we have developed a Lyapunov energy function-based control scheme. Operation of the system under unbalanced grid voltage condition has been reported and a methodology to extract maximum power from the PV system is articulated. In addition, to achieve optimal performance of the Lyapunov energy function based power controller, an existing parameter update scheme is employed and an optimal performance of the overall system is achieved. Detailed analysis of the proposed power controller with the feature to operate successfully under unbalanced grid voltage condition has been substantiated and discussed along with the effect of parameter update on the overall control architecture. The proposed system is verified via software simulations in MATLAB/Simulink and PLECS domain and various case study results are presented which corroborate the efficacy of the proposed framework. Index Terms-Three phase Current Source Inverter (CSI), Lyapunov energy function, αβ axis, Model Reference Adaptive System (MRAS), Point of Common Coupling (PCC), Dual second order generalized integrator (DSOGI).
IEEE Electric Ship Technologies Symposium (ESTS), Jul 3, 2021
This paper presents detailed modeling of a Zonal Load Center (ZLC) for a Shipboard Power System (... more This paper presents detailed modeling of a Zonal Load Center (ZLC) for a Shipboard Power System (SPS) in a Real-Time (RT) simulation platform. The system being modeled includes the main Power Conversion Module (PCM) and Battery Energy Storage Module (BESM) with interfacing bidirectional converter, where both converters are implemented with their designed control schemes to manage diverse operational modes. To establish confidence and achieve more insight into the ZLC power converters model, a set of cross-platform Verification and Validation (V&V) activities and frequency characterization are defined and executed. These cross-platform V&V activities include small-signal characterization of terminal impedances and disturbances propagation of ZLC converters and large-signal characterization of the PCM to elicit the response to over/under-voltage. The Opal-RT technologies and MATLAB/Simulink were adopted for the RT simulation and V&V activities.
ASNE Intelligent Ships Symposium (ISS), 2021
This paper describes verification and validation activities for electromagnetic transient simulati... more This paper describes verification and validation activities for electromagnetic transient simulation models of DC/DC converters. These activities include small signal characterization of relevant impedance and frequency response characteristics, as well as large signal characterization of response to overload and over/under-voltage conditions. The activities are illustrated through application to a dual active bridge
DC/DC converter model, and streamlining the application of the activities through the use of a test harness is also discussed.
IEEE 55th International Universities Power Engineering Conference (UPEC), Torino, Italy, Sep 2020
Towards a sustainable future, the adoption of eco-friendly distributed generation (DG) and electr... more Towards a sustainable future, the adoption of eco-friendly distributed generation (DG) and electric vehicle (EV) in the distribution network is increasing rapidly. However, the stochastic nature of renewable-based DGs and high penetration of EV charging have some adverse impacts on power quality in regional distribution grids. To mitigate these problems, we have presented a novel technique of bidirectional power flow control for DG-coupled battery energy storage system (BESS). The verification and validation of the proposed algorithm have been done by performing several case studies considering real-time practical solar photovoltaic (PV) irradiation and wind speed data, and actual EV load data. For the case studies, we adopted the IEEE 13 node distribution feeder as the testbed which is implemented in the MATLAB/Simulink environment. We observed that, by intelligent charging and discharging of BESS, the proposed method controls fast-varying power generated from PV effectively, and improves the voltage fluctuation and power quality significantly.
IEEE 21st International Symposium on Electrical Apparatus & Technologies (SIELA), Bourgas, Bulgaria, Jun 2020
This paper presents the investigations of a half bridge sub-module (HBSM) based seven level modul... more This paper presents the investigations of a half bridge sub-module (HBSM) based seven level modular multilevel converter distribution static synchronous compensator (MMCDSTATCOM) performance under the unbalanced and faulty system conditions in low voltage microgrids. The phase shifted carrier PWM (PSC-PWM) method was used with capacitor voltage balancing algorithm as an inner control and the phase angle control algorithm was used as an outer control for MMC-DSTATCOM. The performance of MMC-DSTATCOM is investigated in MATLAB/Simulink for various simulations such as reactive power compensation, unbalanced and faulty grid conditions.
IEEE 7th Workshop on Wide Bandgap Power Devices and Applications (WiPDA), Raleigh, NC, USA, Oct 2019
As the smart-grid realization is becoming more pragmatic, the analysis on transactive energy syst... more As the smart-grid realization is becoming more pragmatic, the analysis on transactive energy systems (TESs) is also getting more substantial. Bidirectional DC-DC converter (BDDC) is the energy flow driver for a TES connected electric vehicles (EVs) and energy storage systems (ESSs). In this work, we have performed a detailed thermal and efficiency analysis of Silicon (Si), Silicon Carbide (SiC), and Si-SiC hybrid half-bridge commercial power modules for BDDC. Considering the power modules' operating junction temperature as 85% of the rated maximum value, the optimum switching frequency (OSF) for Si, hybrid, and SiC modules is evaluated as 4, 10.5, and 27.5 kHz, respectively. For the full load OSF operation, the required heatsink maximum thermal resistance is estimated as 0.037, 0.040, and 0.080 °C/W, respectively and the SiC MOSFET module shows the highest efficiency of 99%. The BDDC simulation is performed in PLECS, which comprises a control block for bi-directional power operation and the estimated thermal management.
IEEE Power and Energy Conference at Illinois (PECI), Champaign, IL, USA, Feb 2017
In this work, the phase shifted carrier pulse width modulation (PSC PWM) technique is applied as ... more In this work, the phase shifted carrier pulse width modulation (PSC PWM) technique is applied as the most favorable modulation scheme for a photovoltaic (PV) fed cascaded multilevel-micro-grid connected inverter (CM-MGCI), with consideration of the total harmonic distortion (THD) of the output voltage. In addition to this, a modified PSC PWM method named as variable amplitude PSC-PWM (VA-PSC-PWM) is proposed. To verify the performance of proposed PSC PWM method, MATLAB/Simulink simulations are performed with nine-level CM-MGCI. To feed the CM-MGCI required voltage, a PV array is designed and a maximum power point tracking (MPPT) technique is demonstrated in MATLAB/Simulink environment. From the voltage profile of VA-PSC-PWM technique, it is observed that the proposed method gives better THD profile than classical PSC PWM method. Our proposed modified PSC-PWM also provides better THD profile compared to other recently proposed PSC-PWM technique.
IEEE 9th International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, Dec 2016
A modified multilevel inverter (MLI) structure has been presented for Photovoltaic (PV) fed 2.3 k... more A modified multilevel inverter (MLI) structure has been presented for Photovoltaic (PV) fed 2.3 kV micro-grid applications. To feed the cascaded multilevel micro-grid connected inverter (CM-MGCI) voltage, a PV array is designed considering the environmental effects of Bangladesh. We have estimated the performance of the classical and a modified cascaded H-bridge (CHB) MLI with level-shifted carrier sinusoidal pulse width modulation (LSC-SPWM) technique in MATLAB/Simulink environment. The voltage and total harmonic distortion (THD) profile for the proposed eleven-level modified H-bridge MLI topology has been compared with the conventional CHB topology. The harmonic profile has also been compared with other modified MLI topologies. Compared to the conventional CHB and other recent modified MLI topologies, the proposed H-bridge CM-MGCI shows better THD profile.
IEEE 9th International Conference on Electrical and Computer Engineering (ICECE), Dhaka, Bangladesh, Dec 2016
In this study, a modified carrier is proposed to generate PWM gating signal. Proposed PWM method ... more In this study, a modified carrier is proposed to generate PWM gating signal. Proposed PWM method reduces total harmonic distortion (THD) of the output voltage of inverter up to 5.8% than the traditional triangular carrier based PWM. Major harmonic components in output voltage are less in magnitude when proposed PWM technique is applied to inverter. Fundamental component of output voltage is also higher in proposed PWM method for all modulation index and frequency ratio. Performance of proposed modified carrier based PWM is evaluated by MATLAB simulation for single phase 4-cells 9-levels cascaded H-bridge MLI.
IEEE Innovative Smart Grid Technologies-Asia (ISGT- Asia), Bangalore, India, Nov 2013
People of Bangladesh are now fully conscious of the significance of greener and sustainable envir... more People of Bangladesh are now fully conscious of the significance of greener and sustainable environment and global warming. It promotes high expectations for clean power generation, optimal use of electricity, and application of eco-friendly smart technologies. In this regard " smart grid " which effectively controls supply and demand of electric power using advanced communication technology, is a leading tool towards developing " Greener Digital Bangladesh ". There is a growing interest for implementation of smart grid in different nations. In this work, the theoretical concepts of smart grid has been presented to highlight alternative, automated technologies that may bring important benefits to the existing Transmission and Distribution (T&D) networks of Bangladesh. Finally, on the basis of country's practical situation, the development plans of renewable energy power generation for integration of smart grid with existing power network are proposed.
IEEE Innovative Smart Grid Technologies-Asia (ISGT- Asia), Bangalore, India, Nov 2013
To adapt with the incredible advancement of technology throughout the world, as a developing coun... more To adapt with the incredible advancement of technology throughout the world, as a developing country Bangladesh is looking forward to a power system where the losses are minimum, generation, transmission and distribution efficiencies are maximum at a nominal cost and which is also nature welcoming. Such benchmarks can be achieved by adopting a new trendsetting power system widely known as " Smart Grid " , which incorporates both the power and information technologies. In this paper, the smart grid is described from the communication technology point of view. This work is an intense analysis on the present power grid communication networks of Bangladesh, which is illustrated through a map integrating with power grid of the country. After analyzing merits and demerits of existing communication technologies carefully, a definite communication technology has been proposed for different sectors of future intelligent grid which will help to make an effective plan for implementing smart grid in Bangladesh.
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Peer-Reviewed Journal Papers by Md Multan Biswas
Peer-Reviewed Conference Papers by Md Multan Biswas
DC/DC converter model, and streamlining the application of the activities through the use of a test harness is also discussed.
DC/DC converter model, and streamlining the application of the activities through the use of a test harness is also discussed.