电器与能效管理技术Issue(9)：64-70,80,8.DOI:10.16628/j.cnki.2095-8188.2024.09.010
基于傅里叶变换的有源阻尼器虚拟电阻自适应方法
Virtual Resistance Adaptive Method for Active Dampers Based on Fourier Transform
吴栋 1王雷 1盛从兵 1秦爽 1康兆年1
作者信息
- 1. 国网濮阳供电公司,河南濮阳 457000
- 折叠
摘要
Abstract
In order to solve the problem of large working capacity and high loss of active damper caused by the fixed virtual resistance value,the virtual resistance adaptive control strategy based on Fourier transform is proposed.Taking the grid-connected inverter with the resonance stability as the object,the reason of resonance in the inverter is analyzed,the stability of the system is corrected by designing the virtual resistance of the active damper.Finally,the magnitude of the resonance voltage component is extracted at the common coupling point according to the Fourier transform,and the value of the virtual resistance dynamically is adjusted,so as to make the active damper work at a lower capacity and provide the suitable damping for the system at the same time.Simulation shows that the proposed strategy can effectively suppress the resonance of the voltage at the point of common coupling,effectively reduce the working capacity of the active damper at the same time,and improve the ability of the active damper to solve the resonance problem.关键词
有源阻尼器/弱电网/傅里叶变换/虚拟电阻自适应Key words
active damper/weak grid/Fourier transform/virtual resistance adaptive分类
信息技术与安全科学引用本文复制引用
吴栋,王雷,盛从兵,秦爽,康兆年..基于傅里叶变换的有源阻尼器虚拟电阻自适应方法[J].电器与能效管理技术,2024,(9):64-70,80,8.
