Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources

The hybrid AC/DC microgrid (MG) configuration is efficient as it reduces the need for multiple power conversions and hence losses. Therefore, this paper focuses on the study of grid assisted hybrid AC/DC MG comprising of solar PV and fuel cell (FC) systems on DC subgrid with supercapacitor (SC) as...

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Main Authors: NEMPU, P. B., SABHAHIT, J. N.
Format: Article
Language:English
Published: Stefan cel Mare University of Suceava 2019-05-01
Series:Advances in Electrical and Computer Engineering
Subjects:
Online Access:http://dx.doi.org/10.4316/AECE.2019.02007
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author NEMPU, P. B.
SABHAHIT, J. N.
author_facet NEMPU, P. B.
SABHAHIT, J. N.
author_sort NEMPU, P. B.
collection DOAJ
description The hybrid AC/DC microgrid (MG) configuration is efficient as it reduces the need for multiple power conversions and hence losses. Therefore, this paper focuses on the study of grid assisted hybrid AC/DC MG comprising of solar PV and fuel cell (FC) systems on DC subgrid with supercapacitor (SC) as the short term storage device and wind energy conversion system (WECS) on the AC subgrid. A comprehensive study of the operation of MG is performed under varying system conditions in MATLAB/Simulink software. The real and reactive power (PQ) control scheme is used to regulate the DC bus voltage and power flow between the subgrids. Genetic algorithm (GA), artificial bee colony (ABC) optimization, particle swarm optimization (PSO) and the PSO with new update mechanism (PSOd) are used to compute the optimum gain values of proportional-integral (PI) controller in the PQ control scheme. The SC bank effectively reduces the power stress on the subgrids of the proposed hybrid MG system during intermittent conditions of load and generation. In addition, a comparative study of the heuristic optimization techniques is presented in detail. The ABC algorithm is found to arrive at the best results in determining the optimal gains of PI controller.
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spelling doaj.art-e754b0e874834815b5b3859e339270ee2022-12-21T19:15:51ZengStefan cel Mare University of SuceavaAdvances in Electrical and Computer Engineering1582-74451844-76002019-05-01192536010.4316/AECE.2019.02007Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable SourcesNEMPU, P. B.SABHAHIT, J. N.The hybrid AC/DC microgrid (MG) configuration is efficient as it reduces the need for multiple power conversions and hence losses. Therefore, this paper focuses on the study of grid assisted hybrid AC/DC MG comprising of solar PV and fuel cell (FC) systems on DC subgrid with supercapacitor (SC) as the short term storage device and wind energy conversion system (WECS) on the AC subgrid. A comprehensive study of the operation of MG is performed under varying system conditions in MATLAB/Simulink software. The real and reactive power (PQ) control scheme is used to regulate the DC bus voltage and power flow between the subgrids. Genetic algorithm (GA), artificial bee colony (ABC) optimization, particle swarm optimization (PSO) and the PSO with new update mechanism (PSOd) are used to compute the optimum gain values of proportional-integral (PI) controller in the PQ control scheme. The SC bank effectively reduces the power stress on the subgrids of the proposed hybrid MG system during intermittent conditions of load and generation. In addition, a comparative study of the heuristic optimization techniques is presented in detail. The ABC algorithm is found to arrive at the best results in determining the optimal gains of PI controller.http://dx.doi.org/10.4316/AECE.2019.02007fuel cellsheuristic algorithmsmicrogridrenewable energy sourcessupercapacitors
spellingShingle NEMPU, P. B.
SABHAHIT, J. N.
Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
Advances in Electrical and Computer Engineering
fuel cells
heuristic algorithms
microgrid
renewable energy sources
supercapacitors
title Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
title_full Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
title_fullStr Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
title_full_unstemmed Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
title_short Stochastic Algorithms for Controller Optimization of Grid Tied Hybrid AC/DC Microgrid with Multiple Renewable Sources
title_sort stochastic algorithms for controller optimization of grid tied hybrid ac dc microgrid with multiple renewable sources
topic fuel cells
heuristic algorithms
microgrid
renewable energy sources
supercapacitors
url http://dx.doi.org/10.4316/AECE.2019.02007
work_keys_str_mv AT nempupb stochasticalgorithmsforcontrolleroptimizationofgridtiedhybridacdcmicrogridwithmultiplerenewablesources
AT sabhahitjn stochasticalgorithmsforcontrolleroptimizationofgridtiedhybridacdcmicrogridwithmultiplerenewablesources