电源学报

一种提高并网逆变器无源性的阻抗重塑方法

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徐海亮中国电源学会高级会员 , 张伟杰 , 林鸿彬

电源学报 | DC-AC逆变器 2025,23(3): 269-279

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电源学报 |DC-AC逆变器 2025 , 23 (3) : 269 -279

一种提高并网逆变器无源性的阻抗重塑方法

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张伟杰（1997—　），男，硕士研究生。研究方向：多逆变器并联系统稳定性分析。E-mail：wdzwjie@163.com。

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林鸿彬（1999—　），男，硕士研究生。研究方向：多逆变器并联系统稳定性分析。E-mail：lin_hongbin@126.com。

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林鸿彬（1999—　），男，硕士研究生。研究方向：多逆变器并联系统稳定性分析。E-mail：lin_hongbin@126.com。

徐海亮中国电源学会高级会员, 张伟杰, 林鸿彬

作者信息

中国石油大学（华东）新能源学院，青岛　266580

通讯作者:

徐海亮（1985—　），男，中国电源学会高级会员，通信作者，博士，教授。研究方向：新能源发电及微电网。E-mail：xuhl@upc.edu.cn。

作者简介:

张伟杰（1997—　），男，硕士研究生。研究方向：多逆变器并联系统稳定性分析。E-mail：wdzwjie@163.com。

林鸿彬（1999—　），男，硕士研究生。研究方向：多逆变器并联系统稳定性分析。E-mail：lin_hongbin@126.com。

Impedance Remodeling Method for Improving Passivity of Grid-connected Inverters

Hailiang XU Senior Member, CPSS, Weijie ZHANG, Hongbin LIN

Affiliations

College of New Energy, China University of Petroleum (East China), Qingdao 266580, China

出版时间: 2025-05-30 doi: 10.13234/j.issn.2095-2805.2025.3.269

文章导航

摘要

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逆变器作为新能源发电系统与电网之间的接口，发挥着至关重要的作用。然而，弱电网环境下电网阻抗的变化、并联逆变器之间的相互作用及控制系统中存在的延时等均可能威胁系统的稳定运行。对此，基于无源性理论，在传统比例电压前馈的基础上，提出1种新的虚拟阻抗重塑策略，能够消除奈奎斯特频率以下的非无源区域，将逆变器输出阻抗相位保持在[-90°，90°]之内。算例研究表明，该方案可使逆变器并联系统在电网阻抗、逆变器数量及参数等变化下，保持良好的稳定性能。

关键词

并网逆变器 / 前馈控制 / 稳定性 / 无源性

Abstract

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As the interface between a new energy power generation system and power grid, inverters play an important role. However, the stable operation of the system may be threatened by the changes in grid impedance in a weak grid environment, interaction between parallel inverters and delay in the control system. Under this background, a novel virtual impedance remodeling strategy based on the passivity theory and traditional proportional voltage feedforward is proposed, which can eliminate the non-passive region below the Nyquist frequency and keep the inverter output impedance phase within [-90°, 90°]. The results of numerical examples show that the proposed scheme can keep a good stability of the inverter parallel system under changes in grid impedance, number of inverters and parameters.

Key words

Grid-connected inverter / feedforward control / stability / passivity

引用本文

徐海亮中国电源学会高级会员, 张伟杰, 林鸿彬. 一种提高并网逆变器无源性的阻抗重塑方法. 电源学报, 2025 , 23 (3) : 269 -279 . DOI: 10.13234/j.issn.2095-2805.2025.3.269

Hailiang XU, Weijie ZHANG, Hongbin LIN. Impedance Remodeling Method for Improving Passivity of Grid-connected Inverters[J]. Journal of Power Supply, 2025 , 23 (3) : 269 -279 . DOI: 10.13234/j.issn.2095-2805.2025.3.269

基金

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国家自然科学基金资助项目(52077222)

参考文献

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2025年第23卷第3期

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文章信息

doi: 10.13234/j.issn.2095-2805.2025.3.269

接收时间：2022-05-04
首发时间：2026-10-26
出版时间：2025-05-30

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收稿日期：2022-05-04
修回日期：2022-07-29
录用日期：2022-08-01

基金

National Natural Science Foundation of China(52077222)

国家自然科学基金资助项目(52077222)

作者信息

中国石油大学（华东）新能源学院，青岛　266580

通讯作者:

徐海亮（1985—　），男，中国电源学会高级会员，通信作者，博士，教授。研究方向：新能源发电及微电网。E-mail：xuhl@upc.edu.cn。

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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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