电源学报

基于自适应电压前馈的并网逆变器弱网致稳控制

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张琳 ¹ , 游龙翔 ² , 宋美艺 ¹ , 曹苗 ¹ , 严薇 ¹ , 张欣中国电源学会会员 ²

电源学报 | 新能源系统 2025,23(4): 137-150

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电源学报 |新能源系统 2025 , 23 (4) : 137 -150

基于自适应电压前馈的并网逆变器弱网致稳控制

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张琳¹, 游龙翔², 宋美艺¹, 曹苗¹, 严薇¹, 张欣中国电源学会会员²

作者信息

^1.国网陕西省电力有限公司经济技术研究院，西安　710075

^2.浙江大学电气工程学院，杭州　310027

通讯作者:

张欣（1985—　），男，中国电源学会会员，通信作者，博士，研究员。研究方向：新能源系统稳定性防治、宽禁带半导体器件智能封装应用和电力电子中的人工智能技术等。E-mail：zhangxin_ieee@zju.edu.cn。

作者简介:

张琳（1980—　），女，博士，高级工程师。研究方向：电力系统稳定与控制、电力市场分析、智能信息处理技术及其在电力系统中的应用等。E-mail：12310086@zju.edu.cn。

游龙翔（2000—　），男，硕士研究生。研究方向：新能源电力系统建模和稳定性分析等。E-mail：22310061@zju.edu.cn。

宋美艺（1994—　），女，硕士，高级工程师。研究方向：电力系统及其自动化、电力系统继电保护等。E-mail：12310084@zju.edu.cn。

曹苗（1988—　），女，硕士，高级工程师。研究方向：电力系统通信技术研究及应用等。E-mail：youlx16@nuaa.edu.cn。

严薇（1991—　），女，硕士，工程师。研究方向：电力系统及其自动化、电力系统继电保护等。E-mail：bosunzhang@nuaa.edu.cn。

Weak Grid Stabilization Control of Grid-connected Inverter Based on Adaptive Voltage Feedforward

Lin ZHANG¹, Longxiang YOU², Meiyi SONG¹, Miao CAO¹, Wei YAN¹, Xin ZHANG Member, CPSS²

Affiliations

^1.Economic and Technological Research Institute, State Grid Shaanxi Electric Power Co., Ltd., Xi’an 710075, China

^2.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

出版时间: 2025-07-30 doi: 10.13234/j.issn.2095-2805.2025.4.137

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摘要

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随着新能源渗透率的不断提高，并网逆变器与弱电网之间的阻抗交互作用易诱发小信号振荡失稳问题。针对这一问题，首先分析了现有电压前馈阻抗重塑策略的局限性，接着提出一种自适应电压前馈阻抗重塑策略。该策略利用模拟退火-粒子群混合算法对不同输出功率和电网阻抗下的样本工况分别进行前馈通路参数的离线优化设计，进而利用多项式拟合来覆盖连续全工况范围。通过将拟合关系式部署于逆变器中，以根据实时输出功率和电网阻抗自适应调节前馈通路参数。所提自适应策略可保证并网逆变器在不同输出功率和电网阻抗情形下均具备较优的稳定裕度，并在一定程度上兼顾系统的动态性能。最后，通过OPAL-RT半实物实验平台开展实验，验证了所提策略的有效性。

关键词

并网逆变器 / 弱电网 / 稳定性 / 阻抗重塑 / 自适应控制策略

Abstract

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With the continuous increase in new energy penetration, the impedance interaction between a grid-connected inverter (GCI) and a weak grid is easy to induce small-signal oscillation instability. To solve this problem, the limitations of the existing voltage feedforward impedance reshaping strategy are analyzed in this paper at first. Then, an adaptive voltage feedforward impedance reshaping strategy is proposed. This strategy utilizes simulated anneal-particle swarm optimization algorithm to optimize the feedforward path parameters off-line under sample conditions of different values of output power and grid impedance, and polynomial fitting is used to cover the continuous full operating range. By deploying the fitting relationship in the inverter, the feedforward path parameters can be adjusted adaptively according to real-time power and grid impedance. The proposed adaptive strategy can ensure a better stability margin of GCI under conditions of different values of output power and grid impedance, and the dynamic performance of the system is considered to some degree. Finally, experiments were carried out on an OPAL-RT semi-physical experimental platform to verify the effectiveness of the proposed strategy.

Key words

Grid-connected inverter (GCI) / weak grid / stability / impedance reshaping / adaptive control strategy

引用本文

张琳, 游龙翔, 宋美艺, 曹苗, 严薇, 张欣中国电源学会会员. 基于自适应电压前馈的并网逆变器弱网致稳控制. 电源学报, 2025 , 23 (4) : 137 -150 . DOI: 10.13234/j.issn.2095-2805.2025.4.137

Lin ZHANG, Longxiang YOU, Meiyi SONG, Miao CAO, Wei YAN, Xin ZHANG. Weak Grid Stabilization Control of Grid-connected Inverter Based on Adaptive Voltage Feedforward[J]. Journal of Power Supply, 2025 , 23 (4) : 137 -150 . DOI: 10.13234/j.issn.2095-2805.2025.4.137

参考文献

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2025年第23卷第4期

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doi: 10.13234/j.issn.2095-2805.2025.4.137

接收时间：2024-07-10
首发时间：2026-10-26
出版时间：2025-07-30

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收稿日期：2024-07-10
修回日期：2024-08-21
录用日期：2024-08-23

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作者信息

^1.国网陕西省电力有限公司经济技术研究院，西安　710075

^2.浙江大学电气工程学院，杭州　310027

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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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