Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system

Abstract The fluctuating outputs from renewable energy sources (RESs) and variable load power demand deteriorate the current quality, thus an improved generalised integrator with a frequency‐locked loop (IGI‐FLL) control strategy is used, which is not only easy but simple to attain a quick and preci...

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Main Authors: Rohini Sharma, Bhim Singh, Seema Kewat
Format: Article
Language:English
Published: Wiley 2022-03-01
Series:IET Energy Systems Integration
Subjects:
Online Access:https://doi.org/10.1049/esi2.12052
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author Rohini Sharma
Bhim Singh
Seema Kewat
author_facet Rohini Sharma
Bhim Singh
Seema Kewat
author_sort Rohini Sharma
collection DOAJ
description Abstract The fluctuating outputs from renewable energy sources (RESs) and variable load power demand deteriorate the current quality, thus an improved generalised integrator with a frequency‐locked loop (IGI‐FLL) control strategy is used, which is not only easy but simple to attain a quick and precise fundamental extraction. IGI‐FLL control method is utilised with all‐pass filter and is capable to accomplish enhanced harmonics, noise and DC offset rejection ability while estimating fundamental component of the load current. In addition, the FLL structure is used to increase the frequency immunity against voltage variations. It provides improved steady‐state and dynamic performances with flexibility in parameter tuning in comparison to SOGI‐FLL algorithm. It also presents a cost‐effective and robust genetic algorithm (GA)‐based optimisation to provide optimum battery charging and discharging power while satisfying the state‐of‐charge (SOC) limits under RES uncertainty. In this islanded microgrid, a Synchronous Reluctance Generator for pico‐hydro and photovoltaic array is used so that this hybrid system utilises maximum solar PV array power, matches the load, or else charges the battery energy storage while maintaining power balance in the microgrid. Comparative outcomes authenticate the efficacy of the algorithm to handle the issue of RES uncertainty and load unbalance in an islanded microgrid.
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spelling doaj.art-370d100f723242439b1f0f49fd70c4832022-12-22T00:10:50ZengWileyIET Energy Systems Integration2516-84012022-03-014111613010.1049/esi2.12052Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV systemRohini Sharma0Bhim Singh1Seema Kewat2Electrical Engineering Department IIT Delhi New Delhi IndiaElectrical Engineering Department IIT Delhi New Delhi IndiaElectrical Engineering Department IIT Delhi New Delhi IndiaAbstract The fluctuating outputs from renewable energy sources (RESs) and variable load power demand deteriorate the current quality, thus an improved generalised integrator with a frequency‐locked loop (IGI‐FLL) control strategy is used, which is not only easy but simple to attain a quick and precise fundamental extraction. IGI‐FLL control method is utilised with all‐pass filter and is capable to accomplish enhanced harmonics, noise and DC offset rejection ability while estimating fundamental component of the load current. In addition, the FLL structure is used to increase the frequency immunity against voltage variations. It provides improved steady‐state and dynamic performances with flexibility in parameter tuning in comparison to SOGI‐FLL algorithm. It also presents a cost‐effective and robust genetic algorithm (GA)‐based optimisation to provide optimum battery charging and discharging power while satisfying the state‐of‐charge (SOC) limits under RES uncertainty. In this islanded microgrid, a Synchronous Reluctance Generator for pico‐hydro and photovoltaic array is used so that this hybrid system utilises maximum solar PV array power, matches the load, or else charges the battery energy storage while maintaining power balance in the microgrid. Comparative outcomes authenticate the efficacy of the algorithm to handle the issue of RES uncertainty and load unbalance in an islanded microgrid.https://doi.org/10.1049/esi2.12052power generation controlpower supply qualityrenewable energy sources
spellingShingle Rohini Sharma
Bhim Singh
Seema Kewat
Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
IET Energy Systems Integration
power generation control
power supply quality
renewable energy sources
title Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
title_full Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
title_fullStr Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
title_full_unstemmed Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
title_short Improved generalised integrator for optimal dispatch of SyRG‐based pico‐hydro‐PV system
title_sort improved generalised integrator for optimal dispatch of syrg based pico hydro pv system
topic power generation control
power supply quality
renewable energy sources
url https://doi.org/10.1049/esi2.12052
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AT bhimsingh improvedgeneralisedintegratorforoptimaldispatchofsyrgbasedpicohydropvsystem
AT seemakewat improvedgeneralisedintegratorforoptimaldispatchofsyrgbasedpicohydropvsystem