电力系统保护与控制2016，Vol.44Issue(11)：1-8,8.DOI:10.7667/PSPC151260
适用于并网逆变器的新型 LCL 滤波器
A novel LCL filter adopted in grid-connected inverter
金亮亮 1周荔丹 1姚钢 1张嵩 2冯文军 2毛维俭3
作者信息
- 1. 电力传输与功率变换控制教育部重点实验室 上海交通大学，上海 200240
- 2. 国网上海市电力公司市区供电公司，上海 200080
- 3. 上海闸电燃气轮机发电有限公司，上海 200122
- 折叠
摘要
Abstract
LCL-filter adopted in grid-connected inverter has its resonant issue meanwhile the capacitor is vulnerable under the impact of 5, 7 harmonic. To this end, a new LCL topology is proposed with two resonances introduced in its filter branch, i, e. a parallel one to get the capacitor protected and a serial one to decrease switching harmonics. The transfer function of filter branch current and grid voltage under the scheme is presented firstly, then the influence of filter capacitance perameters variation on tuning point of filter branch and the basic process of parameters selection are put forward. Comparison results considering novel LCL-filter and traditional LCL-filter are presented, which show that the novel topology can achieve almost the same damping effect as by traditional topology, meanwhile, getting the capacitor well protected and decreasing power loss caused by passive damping.关键词
LCL 滤波器/无源阻尼/并联谐振/串联谐振/STATCOMKey words
LCL-filter/passive damping/parallel resonance/series resonance/STATCOM引用本文复制引用
金亮亮,周荔丹,姚钢,张嵩,冯文军,毛维俭..适用于并网逆变器的新型 LCL 滤波器[J].电力系统保护与控制,2016,44(11):1-8,8.
