基于改进下垂法控制器的光伏并联运行控制策略  

Photovoltaic Source Parallel Running Control Strategy Based on Improved Droop Controller

作　　者：徐鹏[1] 吴雷[1] 杜蘅[1] 

机构地区：[1]江南大学,电气自动化研究所,江苏无锡214122

出　　处：《电力电子技术》2012年第10期11-13,共3页Power Electronics

摘　　要：当逆变电源并联运行时,各电源的输出阻抗很多情况下是同时存在阻性和感性。若仅采用传统方法来控制逆变电源系统并联运行,则系统的控制性能和精度必然会受到影响。针对传统控制策略的不足,提出了一种基于改进下垂法的并联运行控制策略,选取光伏电源作为逆变电源。搭建了并联型逆变电源装置样机,通过试验证明了该控制策略能有效控制逆变电源并联运行,是一种较为理想的并联方式。When inverter sources are running in parallel, the output impedance of each inverter modules has resistance inductive impedance with perceptual impedance.ff only using traditional method to control the parallel running,the system has a bad influence on the control performance and the control accuracy.Considering the disadvantages of the traditional control method,an improved droop control method for parallel running is proposed.The photovoltaic source is chosen as the inverter source.A set of parallel inverter source is also designed, the experimental results prove that the control strategy is an ideal method which can effectively control inverter source parallel running.

关 键 词：逆变电源 光伏电源 并联运行 改进下垂法 

分 类 号：TM464[电气工程—电器]