Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes

Abstract Multilevel converters (MLCs) are extensively used in solar photovoltaic (SPV) applications owing to their advantages such as low total harmonic distortion (THD) in the converter voltage, reduction in device stress, and switching losses. A suitable modulation technique is important for the e...

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Autores principales:	Jyoti Kulkarni, Shivam Kumar Yadav, Bhim Singh, Narendra Kumar
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Energy industries. Energy policy. Fuel trade HD9502-9502.5 Production of electric energy or power. Powerplants. Central stations TK1001-1841
Acceso en línea:	https://doaj.org/article/9d74f8c64d9749e8ba17b29302414904
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spelling	oai:doaj.org-article:9d74f8c64d9749e8ba17b293024149042021-11-22T16:30:08ZPower quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes2634-158110.1049/enc2.12041https://doaj.org/article/9d74f8c64d9749e8ba17b293024149042021-09-01T00:00:00Zhttps://doi.org/10.1049/enc2.12041https://doaj.org/toc/2634-1581Abstract Multilevel converters (MLCs) are extensively used in solar photovoltaic (SPV) applications owing to their advantages such as low total harmonic distortion (THD) in the converter voltage, reduction in device stress, and switching losses. A suitable modulation technique is important for the efficient closed‐loop control of megawatt (MW)‐scale solar photovoltaic plants. This work utilises different modulation techniques, such as phase‐shifted (PS) multicarrier pulse width modulation (PWM), selected harmonic elimination (SHE), and nearest level modulation (NLM), for switching of cascaded H‐bridge (CHB) converter‐based large‐scale SPV systems. The investigation on improving power quality is presented with a suitable fast Fourier transform (FFT) analysis and comparative graphs. The presented control and modulation enhance the power quality of the output current being fed to the grid in the dynamic solar profile. Moreover, the low switching frequency employed in this photovoltaic converter at a high power rating increases the system efficiency. Graphical illustrations of losses with fundamental and PWM switching were analysed for the MW‐rated system. The obtained results show that SHE‐PWM provides the best performance for large‐scale solar power plants. Furthermore, the IEEE‐519 standard was met for both grid voltages and currents. The system was modelled and simulated in MATLAB/Simulink and validated in a real‐time environment.Jyoti KulkarniShivam Kumar YadavBhim SinghNarendra KumarWileyarticleEnergy industries. Energy policy. Fuel tradeHD9502-9502.5Production of electric energy or power. Powerplants. Central stationsTK1001-1841ENEnergy Conversion and Economics, Vol 2, Iss 3, Pp 145-156 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Energy industries. Energy policy. Fuel trade HD9502-9502.5 Production of electric energy or power. Powerplants. Central stations TK1001-1841
spellingShingle	Energy industries. Energy policy. Fuel trade HD9502-9502.5 Production of electric energy or power. Powerplants. Central stations TK1001-1841 Jyoti Kulkarni Shivam Kumar Yadav Bhim Singh Narendra Kumar Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
description	Abstract Multilevel converters (MLCs) are extensively used in solar photovoltaic (SPV) applications owing to their advantages such as low total harmonic distortion (THD) in the converter voltage, reduction in device stress, and switching losses. A suitable modulation technique is important for the efficient closed‐loop control of megawatt (MW)‐scale solar photovoltaic plants. This work utilises different modulation techniques, such as phase‐shifted (PS) multicarrier pulse width modulation (PWM), selected harmonic elimination (SHE), and nearest level modulation (NLM), for switching of cascaded H‐bridge (CHB) converter‐based large‐scale SPV systems. The investigation on improving power quality is presented with a suitable fast Fourier transform (FFT) analysis and comparative graphs. The presented control and modulation enhance the power quality of the output current being fed to the grid in the dynamic solar profile. Moreover, the low switching frequency employed in this photovoltaic converter at a high power rating increases the system efficiency. Graphical illustrations of losses with fundamental and PWM switching were analysed for the MW‐rated system. The obtained results show that SHE‐PWM provides the best performance for large‐scale solar power plants. Furthermore, the IEEE‐519 standard was met for both grid voltages and currents. The system was modelled and simulated in MATLAB/Simulink and validated in a real‐time environment.
format	article
author	Jyoti Kulkarni Shivam Kumar Yadav Bhim Singh Narendra Kumar
author_facet	Jyoti Kulkarni Shivam Kumar Yadav Bhim Singh Narendra Kumar
author_sort	Jyoti Kulkarni
title	Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
title_short	Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
title_full	Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
title_fullStr	Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
title_full_unstemmed	Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes
title_sort	power quality investigation of chb nine‐level converter based large‐scale solar pv system with different modulation schemes
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/9d74f8c64d9749e8ba17b29302414904
work_keys_str_mv	AT jyotikulkarni powerqualityinvestigationofchbninelevelconverterbasedlargescalesolarpvsystemwithdifferentmodulationschemes AT shivamkumaryadav powerqualityinvestigationofchbninelevelconverterbasedlargescalesolarpvsystemwithdifferentmodulationschemes AT bhimsingh powerqualityinvestigationofchbninelevelconverterbasedlargescalesolarpvsystemwithdifferentmodulationschemes AT narendrakumar powerqualityinvestigationofchbninelevelconverterbasedlargescalesolarpvsystemwithdifferentmodulationschemes
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Power quality investigation of CHB nine‐level converter based large‐scale solar PV system with different modulation schemes

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