兼具有源阻尼器功能的并网逆变器改进虚拟阻抗控制方法

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1540 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To enhance the resonance suppression effect of the grid-connected inverters with active damper function under variations in grid impedance, an improved virtual impedance control method applied in the active damper function is proposed. Existing virtual impedance control method utilizes adaptive regulator to generate virtual impedance for damping wide-band harmonics, and no targeted enhancement of the damping effect on harmonics at the resonance frequency has been achieved. Based on the existing virtual impedance control methods, an improved module is added in the proposed approach. The sliding discrete Fourier transform (SDFT) is employed to identify the resonance frequency. The resonant suppression effect is enhanced by reducing the magnitude of the virtual impedance at the resonant frequency. Finally, the feasibility and effectiveness of the proposed improved virtual impedance control method for grid-connected inverter with active damper function are verified by simulation.

Key words： grid-connected inverter active damper resonance suppression virtual impedance

Received: 29 December 2025

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://dqjs.cesmedia.cn/EN/Y2026/V27/I6/1

[1] 黎博, 陈民铀, 钟海旺, 等. 高比例可再生能源新型电力系统长期规划综述[J]. 中国电机工程学报, 2023, 43(2): 555-580.
[2] 舒印彪, 赵勇, 赵良, 等. “双碳”目标下我国能源电力低碳转型路径[J]. 中国电机工程学报, 2023, 43(5): 1663-1672.
[3] 陈冲, 贾利民, 赵天宇, 等. 去碳化导向的轨道交通与新能源融合发展: 形态模式、解决方案和使/赋能技术[J]. 电工技术学报, 2023, 38(12): 3321-3337.
[4] 解润生, 张国荣, 解宝. 考虑长距离输电缆特性的逆变器并网系统谐波不稳定分析及抑制[J]. 电力系统自动化, 2024, 48(2): 128-139.
[5] 张占俊, 李建文, 董耀, 等. 弱电网下多逆变器并网谐振失稳分析方法[J]. 电气技术, 2020, 21(10): 21-28.
[6] 汪凤翔, 汤小雪, 于新红, 等. 弱电网下基于谐振阻尼优化的LCL型并网逆变器预测控制[J]. 电工技术学报, 2026, 41(8): 2822-2835.
[7] 陈宇飞, 陶天越. 提升三相并网逆变器稳定性的阻抗优化控制策略[J]. 电气技术, 2025, 26(4): 20-28.
[8] 谢志为, 陈燕东, 伍文华, 等. 弱电网下多逆变器并网系统的全局高频振荡抑制方法[J]. 电工技术学报, 2020, 35(4): 885-895.
[9] Ma Wenjie, Guan Yuanpeng, Zhang Bo, et al.Active disturbance rejection control based single current feedback resonance damping strategy for LCL-type grid-connected inverter[J]. IEEE Transactions on Energy Conversion, 2021, 36(1): 48-62.
[10] Lin Qiyou, Li Yali, Chang Tingting, et al.Resonance analysis and suppression of grid-connected inverter parallel system in weak grid[C]//2023 3rd International Conference on Electrical Engineering and Control Science (IC2ECS), Hangzhou, China, 2023: 1352-1355.
[11] 边志维, 何远彬, 吴圆圆, 等. 一种提高LCL型并网逆变器无源性及抗扰性的网侧电流控制策略[J]. 中国电机工程学报, 2022, 42(6): 2175-2185.
[12] 高家元, 肖凡, 姜飞, 等. 弱电网下具有新型PLL结构的并网逆变器阻抗相位重塑控制[J]. 中国电机工程学报, 2020, 40(20): 6682-6693.
[13] Chen Yongtao, Dong Guangde, Li Qiang, et al.Resonance suppression method of the interactive current based on impedance reshaping[C]//2024 IEEE 7th International Electrical and Energy Conference (CIEEC), Harbin, China, 2024: 1736-1739.
[14] 曹芸凯, 赵涛, 朱爱华, 等. 计及电网和线路阻抗的并联逆变器谐振抑制方法[J]. 电力科学与技术学报, 2022, 37(2): 188-196.
[15] Li Qiang, Sun Pengju, Chen Yongtao, et al.Resonance suppression method for the multi-inverter system based on single-inverter impedance reshaping[C]// 2024 3rd Asian Conference on Frontiers of Power and Energy (ACFPE), Chengdu, China, 2024: 496-500.
[16] 高家元, 黄帅, 姜飞, 等. 弱电网下基于比例权重的控制环参数自适应调整并网逆变器稳定性提升方法[J]. 电工技术学报, 2024, 39(24): 7846-7859.
[17] Wang Xiongfei, Blaabjerg F, Liserre M, et al.An active damper for stabilizing power-electronics-based AC systems[J]. IEEE Transactions on Power Elec- tronics, 2014, 29(7): 3318-3329.
[18] Lin Zhiheng, Ruan Xinbo, Zhang Hao, et al.A hybrid-frame control based impedance shaping method to extend the effective damping frequency range of the three-phase adaptive active damper[J]. IEEE Trans- actions on Industrial Electronics, 2023, 70(1): 509-521.
[19] 史明明, 姜云龙, 史鸿飞, 等. 集成有源阻尼器功能的并网逆变器虚拟电阻补偿控制方法[J]. 电力自动化设备, 2024, 44(4): 119-126.
[20] 屈艾文, 陈道炼, 苏倩. 三相准Z源并网逆变器的简单升压改进空间矢量调制策略[J]. 电工技术学报, 2018, 33(4): 826-836.
[21] Xin Zhen, Loh P C, Wang Xiongfei, et al.Highly accurate derivatives for LCL-filtered grid converter with capacitor voltage active damping[J]. IEEE Transactions on Power Electronics, 2016, 31(5): 3612-3625.
[22] Jacobsen E, Lyons R.The sliding DFT[J]. IEEE Signal Processing Magazine, 2003, 20(2): 74-80.