电网技术Issue(11)：3268-3275,8.
基于LCL输出滤波器的并网逆变器四种PI控制器设计方法
Four Design Methods for Proportional-Integral Controller of Grid-Connected Inverter With LCL Output Filter
摘要
Abstract
Considering the large inertia of the LCL output filter incorporated into grid-connected inverters, four design methods for the proportional-integral(PI) controller were compared in order to achieve the best one. After establishing the mathematical model for the current control loop of a grid-connected inverter with the LCL output filter, fundamental principles related to four design methods separately named with frequency characteristic, symmetrical optimum, modulus optimum and engineering optimum, were analyzed;calculation methods for the proportional and integral constants were also presented. In terms of performance indexes such as the damping level and the response speed, features of four aforementioned design methods were extracted. Analysis showed that the best one was the modulus optimum design method. The validity of theoretical analysis was verified by some experimental results.关键词
并网逆变器/LCL输出滤波器/PI控制器Key words
grid-connected inverter/LCL output filter/PI controller分类
信息技术与安全科学引用本文复制引用
汤赐..基于LCL输出滤波器的并网逆变器四种PI控制器设计方法[J].电网技术,2013,(11):3268-3275,8.基金项目
国家自然科学基金项目(51307009)；湖南省自然科学基金(12JJ4045)。Project Supported by National Natural Science Foundation of China(51307009) （51307009）
