Papers by Ambarnath Banerji
Priority-based Mutual Power Sharing between Microgrids in a Community Microgrid
Jordan journal of electrical engineering, 2024
Several microgrids (MG) operating in the neighborhood can be integrated to form a community of MG... more Several microgrids (MG) operating in the neighborhood can be integrated to form a community of MGs to harness several benefits of a larger networked system. The present research is an investigation of the coordination between the several AC and DC MGs of such community MG. Individual MGs may function as self-contained entities, but they might also collaborate with other nearby MGs to provide backup operations in the community MG. In this paper a coordination technique is suggested for transmitting excess power of a MG to the community bus under the control of the community MG controller so that nearby MGs can use it as needed, while maintaining stable operation of the participating MGs. A centralized controller called the community MG controller maintains the coordination between the neighboring MGs. The controller receives power shortage report from the MGs facing power shortage problem and decides as to which MG can draw this excess power. The controller uses a priority-based distribution algorithm to decide the allocation of power. The algorithm takes into consideration the presence of critical loads like hospital, industry, academic institution, etc. An infrastructure of smart metering (SM) is used to check the amount of power flow into any MG. The MGs will be penalized if they draw power more than that allocated to them. Thus, each MG is able to maintain stable operation without having to resort to spinning reserve for excess load and dump load to remove the excess power from the system. The obtained simulation results show that the suggested approach is a practical and efficient means of coordinating power flow in an islanded community MGs.
Analysis of Electric Vehicle-To-Grid (V2G) Simulation Model and Optimal Peak Shaving in Smart Grids
Lecture notes in electrical engineering, Dec 31, 2022
A Review on Power System Optimization Using PSO
Lecture notes in electrical engineering, Dec 31, 2022
arXiv (Cornell University), Jul 29, 2023
The popularity of low-voltage ac distribution networks is increasing day by day. However, an effi... more The popularity of low-voltage ac distribution networks is increasing day by day. However, an efficient protection scheme for low-voltage ac distribution systems is still challenging. This paper introduces a protection scheme suitable for low-voltage grid connected and islanded ac microgrid based on local measurements in order to locate, identify and isolate faults. Here current decomposition method is specifically incorporated to accomplish fault type identification. MATLAB/SIMULINK platform is chosen to examine the performance of the proposed scheme both in grid connected and islanded low-voltage ac microgrid. The feasibility of the protection scheme is extensively investigated by simulating all types of faults with substantial variations like different fault location, different fault resistances etc. The test results ensure that the proposed protection scheme is sufficiently reliable and faster for providing complete protection in low-voltage ac microgrid.
International Journal of Power Electronics and Drive Systems (IJPEDS)
Modern generation trend through renewable energy-based distributed energy resources has made micr... more Modern generation trend through renewable energy-based distributed energy resources has made microgrids an important part of the power system. Robust control of the inverter providing quality power has become an essential microgrid (MG) requirement. This paper proposes continuous control set model predictive control (CCS-MPC) on inverter for dynamic voltage regulation supplying reactive power to the load for a MG. The proposed method uses the terminal voltage magnitude, which reduces calculation time, sensor per phase, and the engagement burden of the controller. This paper applies a nonlinear VSI model and a series parallel structure nonlinear autoregressive exogenous (NARX) model of artificial neural network (ANN) to predict future output which CCS-MPC optimizes. The proposed VSI with CCS MPC is applied to a case study of a real system as a plug-and-play device. Simulation shows the satisfactory result of the proposed controller. The inverter control system has been made resilient...
Energy demand has shown an increase in recent years, and distributed energy generation and load m... more Energy demand has shown an increase in recent years, and distributed energy generation and load management systems are essential components in modern Microgrids (MG). An effective and continuous monitoring of the grid represented a challenge. The proposed method regulates the power flow of the microgrid, improving the Load-management performance.
Analysis of a Power System Under Contingency Using Load Flow Studies
Lecture Notes in Electrical Engineering
A genetic algorithm is used in conjunction with an efficient load flow programme to determine the... more A genetic algorithm is used in conjunction with an efficient load flow programme to determine the optimal locations of the predefined DGs with MATLAB & MATPOWER software. The best location for the DGs is determined using the genetic algorithm. The branch electrical loss is considered as the objective function and the system total loss represent the fitness evaluation function for driving the GA. The load flow equations are considered as equality constraints and the equations of nodal voltage and branch capacity are considered as inequality constraints. The approach is tested on a 9 &14 bus IEEE distribution feeder.
International Journal on Electrical Engineering and Informatics, 2011
Large inductive loads require larger rating of DSTATCOM to generate the required reactive power o... more Large inductive loads require larger rating of DSTATCOM to generate the required reactive power of the load. Larger the rating of the DSTATCOM higher is the cost. Most distribution system has a base reactive power requirement. The reactive power demand at any instant varies around the base value. A window operation of the DSTATCOM is proposed in this paper. The base reactive power is provided by the TSCs and the DSTATCOM operates within a window (comprising of both inductive and capacitive reactive power) beyond the base reactive power provided by the TSCs. Thus the range of the reactive power compensation of the system is enhanced without the system being limited by the steps in which the TSCs operate. Within the window range, the DSTATCOM provides a continuous and smooth variation in the reactive power generation and can track the change in the VAr requirement very fast. To obtain optimal performance of the combined system, the TSCs are switched through a Fuzzy Logic controller. In this paper, window operation of the DSTATCOM along with Fuzzy Logic Controller operated TSCs is demonstrated for an autonomous asynchronous generator. The entire system has been simulated on MATLAB platform.
Enhancing Quality of Power to Sensitive Loads With Microgrid
IEEE Transactions on Industry Applications, 2016
The paper discusses the effectiveness of the MicroGrid (MG) in a distribution system. Combined he... more The paper discusses the effectiveness of the MicroGrid (MG) in a distribution system. Combined heat and power (CHP) system has been used to enhance the overall efficiency of the power system. Microturbines have been used for CHP operation in this paper. The various methods of controls of the MG are also discussed. A simple and low cost model for MG based on frequency droop control for active power generation, has been proposed. The proposed model can be used in plug and play mode of operation of the MG. The model has been simulated on the MATLAB platform. Performance of the model has been studied under grid connected and under islanded condition.
International Journal of Power Electronics and Drive Systems (IJPEDS), 2011
Deregulation of the electric power energy market has thrown open opportunities for tapping the la... more Deregulation of the electric power energy market has thrown open opportunities for tapping the large number of small pockets of renewable energy sources with the asynchronous generators. Whether the power is supplied by asynchronous generator or by the grid at the remote location, its quality has become an important aspect for consumers of electricity. Efforts have been made to improve the power quality using passive filters, active filters and the new concept of Custom Power. Use of Custom power devices ensures that a load do not pollute the power supply of the other loads. One such custom power device is the DSTATCOM (Distribution Static Compensator) which is connected in shunt at the load end. The heart of the DSTATCOM is an inverter. The focus on the autonomous generation has increased in the recent years. The paper presents a comprehensive review of the DSTATCOM used for autonomous generation. It is aimed at providing a broad perspective on the status of DSTATCOM, used with Asynchronous generators, vis-à-vis its working principle, topology, supply system configurations, solid state switching devices and technology, control methodologies and approaches, application areas of DSTATCOM to researchers and application engineers dealing with power quality aspects of Autonomous Systems. Classified manner in which the references are presented in this paper will serve them as quick and useful reference.
Design Development of VEhicle for Delivery of Goods in Hazardous Areas (VEDHA)
2022 IEEE VLSI Device Circuit and System (VLSI DCS)
Economic Analysis for the Players Participating in a Hybrid Solar Virtual Power Plant
2022 IEEE VLSI Device Circuit and System (VLSI DCS)
Fuzzy PID Controlled DSTATCOM for Delivering Quality Power
2020 IEEE VLSI DEVICE CIRCUIT AND SYSTEM (VLSI DCS)
DSTATCOM is a shunt compensation device connected at Point of Common Coupling (PCC) of Distributi... more DSTATCOM is a shunt compensation device connected at Point of Common Coupling (PCC) of Distribution System to deliver quality power. The proportional & integral controller (PI) of DSTATCOM needs tuning at the time of installation as well as due to change of network parameters and working conditions, can provide a slower response. To ensure plug and play feature to the device with faster response Proportional Integral Derivative (PID) action with fuzzy interference system (FIS) is implemented in this paper. With respect to SRF theory based simple PI controller a better response is obtained with fuzzy PID controller in terms of dynamic voltage profile and Total Harmonic Distortion (THD).
Environmental Monitoring, 2022
Power generation technology has been evolving ever since Edison put up his first generating stati... more Power generation technology has been evolving ever since Edison put up his first generating station. It started with generation near the load center. To capitalize on the economics of scale large power plants were set up near the energy centers like the coal mine heads. This led to development of long distance transmission lines and the grids. Then came the restructuring of the rules and regulations governing the power system. With the issues of pollution and Global warming coming to the fore a paradigm shift is noticed in the generation of electrical power. Large number of renewable energy sources (RES) based small generators started getting connected to the distribution system. The concept of microgrid evolved to control and regulate the RES based generations. In order to effectively use these RES based generation and to capitalize from the electrical energy trading the concept of Virtual Power Plant and Community microgrid have started taking shape.
Optimal placement of DG using Swarm intelligence approach in distributed network: Status & challenges
2016 21st Century Energy Needs - Materials, Systems and Applications (ICTFCEN), 2016
In recent years, the significance of distributed generation has increased rapidly in distribution... more In recent years, the significance of distributed generation has increased rapidly in distribution system. The prominent goal of DG placement is to measure the optimized location, type and sizes of DGs for getting best efficiency by maximizing or minimizing different constraints. This work investigates the recent research in the field of Swarm intelligence based optimal DG placement. Swarm intelligence is mainly categorized into Ant Colony Optimization & Particle Swarm Optimization. To get optimal solution, various researchers considers different constraints to get their solution. This article surveys those research works showing recent trends of Optimal DG Placement using Ant Colony Optimization & Particle Swarm Optimization.
A Supervised Hybrid Algorithm based DSTATCOM to Cater to Dynamic Load Changes
2019 International Conference on Energy Management for Green Environment (UEMGREEN), 2019
Renewable energies like Photo Voltaic (PV)/ solar power are abundantly available and waiting to b... more Renewable energies like Photo Voltaic (PV)/ solar power are abundantly available and waiting to be harnessed. Being weak system renewable energy based power systems require reactive power generation close to load to unburden the source. Study reveals fixed tuned Proportional & Integral (PI) controller based DSTATCOM may not be able to provide satisfactory voltage regulation with wide load changes. DSTATCOM generally requires tuning of PI controllers by utility engineers during installation. This process is mostly trial and error approach. It is necessary to re-tune the DSTATCOM controller when there is change in operating condition. To ensure automatic control action irrespective of load conditions, soft-computing technique is implemented in the DSTATCOM. A supervised hybrid algorithm named Neuro- Fuzzy controller is adopted to ensure automatic adaptation of the controller parameters during changing load conditions. The paper presents a Synchronous Reference Frame theory (SRF) based DSTATCOM on MATLAB platform and uses a Neuro- Fuzzy inference system to get a better response in terms of dynamic voltage profile and Total Harmonic Distortion (THD) as compared to simple PI Controller.
PSO Optimized Decentralized Secondary Control for Frequency and Voltage Restoration in Islanded AC Microgrid
2021 IEEE 18th India Council International Conference (INDICON), 2021
This paper proposes a decentralized secondary control scheme suitable for islanded microgrid cons... more This paper proposes a decentralized secondary control scheme suitable for islanded microgrid consist of multiple VF controlled inverters connected in parallel. The controller is based on proportional-integral control to maintain frequency and voltage under different load switching conditions. Moreover improved system performance and reliability are accomplished by managing proper power sharing among the participating inverters. Particle swam optimization is adapted to find best suitable gain parameters of the proportional-integral controller. Multiple simulation results of the islanded microgrid using MATLAB are discussed in detail to establish the above mentioned two main objectives of the paper i.e. maintaining frequency, voltage and balance load sharing among inverters.
A Renewable Energy based Hybrid Autonomous Grid
2020 IEEE Calcutta Conference (CALCON), 2020
A paradigm shift to renewable energy based autonomous grids are being observed worldwide. The dc ... more A paradigm shift to renewable energy based autonomous grids are being observed worldwide. The dc autonomous systems are being explored in addition to the ac autonomous systems to provide power to many electronics appliances without going through rectification and filtering. This paper explores the possibilities of having a hybrid autonomous grid providing quality power to both ac and dc loads directly. An Induction Generators based ac grid is proposed whose requirement of reactive power under dynamic mode is met by a DSTATCOM. The dc bus of the DSTATCOM is supplied by a Solar PV source. The dc bus forms the dc grid and directly supplies the dc loads. The autonomous grid is simulated as a hybrid grid to supply both ac and dc power. The entire simulation is carried out on a MATLAB platform.
Survey on Major Blackouts Analysis and Prevention Methodologies
Michael Faraday IET International Summit 2015, 2015
Power blackouts are major catastrophic failures in large inter connected power systems. Risk of b... more Power blackouts are major catastrophic failures in large inter connected power systems. Risk of blackouts is more than expected and must be considered in the power system studies. In past, many power blackouts occurredworldwide. An attempt has been made to summarize those major blackouts with their effects. To resolve the risk factors identified by the researchers various methodologies were proposed. This paper surveys major blackouts, analyze the reasons behind them and report major prevention methodologies proposed by various authors and aim at providing a broad perspective on blackouts in power system to researchers and application engineers. Classified manner in which the references are presented will serve them as quick and useful reference.
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Papers by Ambarnath Banerji