摘要
针对独立模式下串/并联输出并网逆变器的两种输出模式对输出电压外特性的影响,提出了一种新的控制策略。阐述了该逆变器的工作原理和串并联两种输出模式的控制策略,分析了两种输出模式的外特性及各参数对外特性的影响,并以一台1kVA串/并联输出双降压式半桥逆变器为例进行了仿真和实验验证。其结果表明,在新的控制策略下,串/并联输出模式均不影响输出电压的稳压精度。
Aiming at the influence on external characteristic of cascading/parallel output grid-connected inverter in standalone mode at two output modes,a novel control strategy is proposed.The operation principle,control strategy and external characteristic at cascading and parallel mode are illustrated.Influence of different parameter to external characteristic is analyzed.Finally ,simulation and experimental results verify the analysis by a 1 kVA cascading/parallel output dualbuck half-bridge inverter,which demonstrates that external characteristics at two output modes are same in the novel control strategy.
出处
《电力电子技术》
CSCD
北大核心
2008年第6期56-57,74,共3页
Power Electronics
基金
航空科技支撑基金(05C52006)
南京市科技计划(051a150018)
重点学科建设开放基金(XKY2006058)~~
关键词
逆变器
并网
控制/外特性
独立模式
inverter
grid-connected
control / external characteristic
stand-alone mode
