Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter

Direct current (DC) solid-state transformers based on modular multilevel converters (MMC-DCSSTs) have wide application prospects in DC transmission and distribution systems. However, after starting such a system, the normal operation of its MMC-DCSST may generate relatively large inrush and magneti...

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Autores principales:	Zhendong Ji, Rui Rao, Qiantong Wang, Dongye Li, Yichao Sun, Jianhua Wang, Jianfeng Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	DC solid-state transformer Modular multilevel converter Soft-starting scheme Inrush current Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/6f57f7ab7515485eba3b83669de3d21d
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id	oai:doaj.org-article:6f57f7ab7515485eba3b83669de3d21d
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spelling	oai:doaj.org-article:6f57f7ab7515485eba3b83669de3d21d2021-11-26T04:32:52ZSoft-starting scheme for a DC solid-state transformer based on a modular multilevel converter2352-484710.1016/j.egyr.2021.08.035https://doaj.org/article/6f57f7ab7515485eba3b83669de3d21d2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721006375https://doaj.org/toc/2352-4847Direct current (DC) solid-state transformers based on modular multilevel converters (MMC-DCSSTs) have wide application prospects in DC transmission and distribution systems. However, after starting such a system, the normal operation of its MMC-DCSST may generate relatively large inrush and magnetizing currents on the primary and secondary sides. In this study, a soft-starting scheme for MMC-DCSSTs, which is divided into the primary-side and secondary-side charging stages, has been designed to limit these currents before the system reaches the normal operation stage. The effectiveness of the proposed method is validated experimentally, and the reliability of MMC-DCSSTs can be improved with the controllable currents.Zhendong JiRui RaoQiantong WangDongye LiYichao SunJianhua WangJianfeng ZhaoElsevierarticleDC solid-state transformerModular multilevel converterSoft-starting schemeInrush currentElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 378-387 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	DC solid-state transformer Modular multilevel converter Soft-starting scheme Inrush current Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	DC solid-state transformer Modular multilevel converter Soft-starting scheme Inrush current Electrical engineering. Electronics. Nuclear engineering TK1-9971 Zhendong Ji Rui Rao Qiantong Wang Dongye Li Yichao Sun Jianhua Wang Jianfeng Zhao Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
description	Direct current (DC) solid-state transformers based on modular multilevel converters (MMC-DCSSTs) have wide application prospects in DC transmission and distribution systems. However, after starting such a system, the normal operation of its MMC-DCSST may generate relatively large inrush and magnetizing currents on the primary and secondary sides. In this study, a soft-starting scheme for MMC-DCSSTs, which is divided into the primary-side and secondary-side charging stages, has been designed to limit these currents before the system reaches the normal operation stage. The effectiveness of the proposed method is validated experimentally, and the reliability of MMC-DCSSTs can be improved with the controllable currents.
format	article
author	Zhendong Ji Rui Rao Qiantong Wang Dongye Li Yichao Sun Jianhua Wang Jianfeng Zhao
author_facet	Zhendong Ji Rui Rao Qiantong Wang Dongye Li Yichao Sun Jianhua Wang Jianfeng Zhao
author_sort	Zhendong Ji
title	Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
title_short	Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
title_full	Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
title_fullStr	Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
title_full_unstemmed	Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter
title_sort	soft-starting scheme for a dc solid-state transformer based on a modular multilevel converter
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/6f57f7ab7515485eba3b83669de3d21d
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_version_	1718409847596122112

Soft-starting scheme for a DC solid-state transformer based on a modular multilevel converter

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