A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization

In practical applications of distributed generation, accurate phase and frequency detection of grid voltages is the critical aspect for the control of power converter. Thanks for its similarity and robustness, phase-locked loop (PLL) has been widespread. However, under distorted grid conditions with...

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Autores principales:	Yunlu Li, Zizhao Wang, Junyou Yang, Yan Xu, Tianhe Gao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Grid synchronization Power converter Harmonic Phase-locked loop Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/fa4f44d451bd478781b02e667800c42b
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id	oai:doaj.org-article:fa4f44d451bd478781b02e667800c42b
record_format	dspace
spelling	oai:doaj.org-article:fa4f44d451bd478781b02e667800c42b2021-12-04T04:34:54ZA novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization2352-484710.1016/j.egyr.2021.11.064https://doaj.org/article/fa4f44d451bd478781b02e667800c42b2022-04-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721012099https://doaj.org/toc/2352-4847In practical applications of distributed generation, accurate phase and frequency detection of grid voltages is the critical aspect for the control of power converter. Thanks for its similarity and robustness, phase-locked loop (PLL) has been widespread. However, under distorted grid conditions with polluted harmonics, the accuracy of phase detection may be deteriorated. It is still a challenge to maintain the accuracy of phase detection and dynamic performance at same time. In this paper, to tackle this issue, a novel quasi-type-1 (QT1) structure based PLL is proposed. QT1-PLL incorporated with complex filter can meet the requirement of filtering capability, dynamic response and robustness. The utilization of complex filter based on frequency-fixed structure and feed-forward phase compensation path can eliminate the phase error oriented from frequency deviation. The results of comparative experiments confirm the effectiveness of the proposed PLL.Yunlu LiZizhao WangJunyou YangYan XuTianhe GaoElsevierarticleGrid synchronizationPower converterHarmonicPhase-locked loopElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 8, Iss , Pp 104-111 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Grid synchronization Power converter Harmonic Phase-locked loop Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Grid synchronization Power converter Harmonic Phase-locked loop Electrical engineering. Electronics. Nuclear engineering TK1-9971 Yunlu Li Zizhao Wang Junyou Yang Yan Xu Tianhe Gao A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
description	In practical applications of distributed generation, accurate phase and frequency detection of grid voltages is the critical aspect for the control of power converter. Thanks for its similarity and robustness, phase-locked loop (PLL) has been widespread. However, under distorted grid conditions with polluted harmonics, the accuracy of phase detection may be deteriorated. It is still a challenge to maintain the accuracy of phase detection and dynamic performance at same time. In this paper, to tackle this issue, a novel quasi-type-1 (QT1) structure based PLL is proposed. QT1-PLL incorporated with complex filter can meet the requirement of filtering capability, dynamic response and robustness. The utilization of complex filter based on frequency-fixed structure and feed-forward phase compensation path can eliminate the phase error oriented from frequency deviation. The results of comparative experiments confirm the effectiveness of the proposed PLL.
format	article
author	Yunlu Li Zizhao Wang Junyou Yang Yan Xu Tianhe Gao
author_facet	Yunlu Li Zizhao Wang Junyou Yang Yan Xu Tianhe Gao
author_sort	Yunlu Li
title	A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
title_short	A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
title_full	A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
title_fullStr	A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
title_full_unstemmed	A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization
title_sort	novel quasi-type-1 pll based on frequency-fixed complex filter for three phase grid synchronization
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/fa4f44d451bd478781b02e667800c42b
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_version_	1718373008423256064

A novel quasi-type-1 PLL based on frequency-fixed complex filter for three phase grid synchronization

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