基于LCL输出滤波器的双环控制并网逆变器研究  

SURVEY ON DUAL-LOOP CONTROL STRATEGY OF GRID-CONNECTED INVERTER WITH A LCL OUTPUT FILTER

作　　者：易桂平[1] 黄慧春[1] 胡仁杰[1] 

机构地区：[1]东南大学电气工程学院,南京210096

出　　处：《太阳能学报》2016年第1期40-46,共7页Acta Energiae Solaris Sinica

摘　　要：针对采用LCL滤波器的三相并网逆变器,首先进行理论分析并建立数学模型,然后提出一种直接电流双环控制策略并对其稳定性进行分析。对LCL滤波器进行设计分析,并给出参数设计的约束限制条件。利用Simulink进行仿真研究,搭建样机进行实验,结果验证该文控制策略及设计分析的正确性。The three-phase inverter with LCL filter was analyzed theoretically, the state-space mathematic model of the inverter and LCL filter are established in the paper. A direct current dual-loop control strategy is proposed and the stability is analyzed later. LCL filter is designed and analyzed, parameters design restriction conditions of LCL filter are given. Moreover, simulated research is also carried out by means of Simulink and experiments are conducted on the basis of the sample machine established. The results verify the correctness of the control strategy and design analysis herein.

关 键 词：三相并网逆变器 LCL滤波器 双不控制策略 约束限制条件 

分 类 号：TM464[电气工程—电器]