摘要
直驱式永磁同步风电系统电机侧变换器的一种常见拓扑结构为二极管整流桥后接Boost斩波电路。此结构具有较强的非线性,采用普通PI控制器很难使系统在正常运行范围内保持较好动态性能。本文基于双闭环控制方法,设计了基于Buck电路的并联均流器,并进行了相关仿真和试验。
Based on double closed loop controlling method, in this paper a Buck current-sharing device is designed with the help of frequency domain analysis to analyze the transfer function, and the voltage feedback outer loop parameters and current sharing loop parameters are obtained. The correctness of these designed parameters is testified by the correspondent simulation and experiment, and the current sharing experiment results are satisfying.
出处
《船电技术》
2013年第5期39-43,共5页
Marine Electric & Electronic Engineering
关键词
BUCK电路
传递函数
频域分析
Buck circuit
transfer function
frequency domain analysis
