A comprehensive control strategy for photovoltaic virtual synchronous generator considering frequency regulation capability

被引：4

作者：

Liu Zhaoxun ^{[1
]}

Qin Liang ^{[1
]}

Yang Shiqi ^{[1
]}

Zhou Yiyuan ^{[1
]}

Wang Qing ^{[2
]}

Zheng Jingwen ^{[3
]}

Liu Kaipei ^{[1
]}

机构：

[1] Wuhan Univ, Sch Elect & Automat, Wuhan 430072, Peoples R China

[2] State Grid Corp China, Equipment Management Dept, Beijing 100031, Peoples R China

[3] State Grid Hubei Elect Power Co, Elect Power Res Inst, Wuhan 430077, Peoples R China

来源：

ENERGY REPORTS | 2022年 / 8卷

基金：

中国国家自然科学基金;

关键词：

PV-VSG; Frequency deviation-free control; Frequency regulation capacity; Coordinated control; SYSTEMS;

D O I：

10.1016/j.egyr.2022.10.131

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The existing photovoltaic frequency regulation strategies do not take into account the differences in the frequency regulation capability. So they cannot fully exploit the support capacity to the grid frequency. For the purpose of improving the control precision and regulation effect of PV, a comprehensive control strategy for photovoltaic virtual synchronous generator (PV-VSG) is proposed, which accurately considers the frequency regulation capability. First, the inertia regulation margin, power regulation speed and power regulation margin are taken as the evaluation index of frequency regulation capability of PV. Then, the frequent deviation-free control strategy with integral link and the multiple control modes switching strategy are proposed, whose control parameters are designed according to the frequency regulation capability. In the simulation verification, the proposed method reduces the frequency deviation by 0.11 Hz compared to existing strategies, and can quickly recover to the normal value. At the same time, the frequency regulation utilizes the capability of the PVs, which also validates the effectiveness of the proposed strategy. (c) 2022 Published by Elsevier Ltd. This is an open access article under theCCBY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

引用

页码：153 / 163

页数：11

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