电源学报

储能VSG环流抑制及电压稳定控制策略研究

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李祥柱 , 徐永海

电源学报 | 新能源发电与储能 2026,24(2): 145-154

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电源学报 |新能源发电与储能 2026 , 24 (2) : 145 -154

储能VSG环流抑制及电压稳定控制策略研究

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李祥柱, 徐永海

作者信息

华北电力大学电气与电子工程学院，北京　102206

通讯作者:

徐永海（1966—　），男，通信作者，博士，教授。研究方向：新能源电力系统技术研究。E-mail：yonghaixu@263.net

作者简介:

李祥柱（1999—　），男，硕士。研究方向：新能源电力系统技术研究。E-mail：13681392657@163.com

Research on Circulating Current Suppression and Voltage Stability Control Strategy for Energy Storage VSG

Xiangzhu LI, Yonghai XU

Affiliations

School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China

出版时间: 2026-02-28 doi: 10.13234/j.issn.2095-2805.2026.2.145

文章导航

摘要

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在储能换流器PCS（power conversion system）中采用模拟同步电机旋转及励磁特性的虚拟同步机VSG（virtual synchronous generator）控制，实现储能在电力系统调频领域中的应用。在调频工况电化学电池频繁充放电，常需要PCS减载运行，其功率差异会引起VSG功角、电压的变化，造成设备环流，因此提出1种耦合功率变化率的可变参数虚拟阻抗方案，使等效阻抗与PCS功率变化相匹配，针对储能功率变化造成输出电压抗扰动能力变差问题，提出1种包含误差鲁棒积分跟踪模块的二阶线性自抗扰控制方法，实现储能输出电压稳定。PSCAD仿真结果表明：可变参数虚拟阻抗匹配PCS功率变化，对设备环流可以有效抑制，二阶线性自抗扰控制可有效提升电压控制环节对电压波动抑制的能力，提升储能VSG控制系统的鲁棒性。

关键词

储能 / 虚拟同步机 / 可变参数虚拟阻抗 / 线性自抗扰观测器

Abstract

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The power conversion system (PCS) for energy storage uses a virtual synchronous generator (VSG) control system that simulates the rotation and excitation characteristics of synchronous motors, so as to achieve the applications of energy storage in the field of power system frequency regulation. Under frequency modulation conditions, electrochemical batteries frequently charge and discharge, and they often require the PCS to operate under reduced load. In this case, the power difference can cause changes in the power angle and voltage of the VSG, resulting in circulating current within the equipment. A variable-parameter virtual impedance scheme coupled with the power change rate is proposed to match the equivalent impedance with the variation in PCS power. In response to the problem of poor output voltage anti-interference capability caused by changes in the energy storage power, a second-order linear auto-disturbance rejection control method including an error robust integral tracking module is put forward, so as to achieve the stable output voltage from the energy storage. Simulation results based on PSCAD show that the matching of variable-parameter virtual impedance with the power variation of PCS can effectively suppress circulating current within the equipment, and the second-order linear auto-disturbance rejection control can effectively improve the voltage control link’s capability of suppressing voltage fluctuations, thereby enhancing the robustness of the energy storage VSG control system.

Key words

Energy storage / virtual synchronous generator (VSG) / variable-parameter virtual impedance / linear auto-disturbance rejection observer

引用本文

李祥柱, 徐永海. 储能VSG环流抑制及电压稳定控制策略研究. 电源学报, 2026 , 24 (2) : 145 -154 . DOI: 10.13234/j.issn.2095-2805.2026.2.145

Xiangzhu LI, Yonghai XU. Research on Circulating Current Suppression and Voltage Stability Control Strategy for Energy Storage VSG[J]. Journal of Power Supply, 2026 , 24 (2) : 145 -154 . DOI: 10.13234/j.issn.2095-2805.2026.2.145

基金

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国家电网公司总部科技项目(5400-202258419A-2-0-ZN)

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2026年第24卷第2期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.2.145

接收时间：2023-09-04
首发时间：2026-10-29
出版时间：2026-02-28

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收稿日期：2023-09-04
修回日期：2023-10-10
录用日期：2023-10-19

基金

State Grid Corporation of China Headquarters Science and Technology Project(5400-202258419A-2-0-ZN)

国家电网公司总部科技项目(5400-202258419A-2-0-ZN)

作者信息

华北电力大学电气与电子工程学院，北京　102206

通讯作者:

徐永海（1966—　），男，通信作者，博士，教授。研究方向：新能源电力系统技术研究。E-mail：yonghaixu@263.net

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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