摘要
提出一种谐波功率均分的改进下垂控制器。改进后的下垂控制器功率控制环通过加入特定次谐波下垂控制器可以实现基波和谐波功率精确均分,电压环采用准谐振PR控制,实现在较宽频带内逆变器输出电压的零稳态误差控制,准谐振PR控制器截止频率可调以满足系统动态响应速度。基于Matlab/Simulink的仿真和基于DSP的样机试验均验证了所提出方法的正确性和可靠性。
An improved droop controller which shares harmonic power was presented. The improved droop controller shares specific harmonic power with a power controller,the improved voltage loop utilizes a proportion resonance controller to realize zero steady-state errors control of the output voltage with wide bandwidth for parallel inverters,and quasi-resonant frequency is adjustable to meet the system dynamic response speed. The simulation based on Matlab / Simulink and the prototype experiments based on DSP verify the correctness and reliability of the proposed methods.
出处
《电器与能效管理技术》
2015年第1期56-60,共5页
Electrical & Energy Management Technology
基金
江苏省科技支撑计划(BE2012036
BE2013088)
江苏省产学研联合创新资金项目(BY2014127-13)
关键词
微电网
下垂控制
比例谐振控制
功率控制
micro-grid
droop control
proportion resonance control
power control
