LCL型三相光伏并网逆变器控制系统的设计与仿真  

Design and simulation of LCL three phase photovoltaic grid connected inverter control system

作　　者：宋璐 卫亚博[2] 冯艳平[3] SONG Lu;WEI Yabo;FENG Yanping(College of Medical Technology,Shaanxi University of Chinese Medicine,Xianyang 712046,China;Pingdingshan University,Pingdingshan 467000,China;Zhengzhou Technical College,Zhengzhou 450121,China)

机构地区：[1]陕西中医药大学医学技术学院,陕西咸阳712046 [2]平顶山学院,河南平顶山467000 [3]郑州职业技术学院,河南郑州450121

出　　处：《电子设计工程》2022年第14期190-193,共4页Electronic Design Engineering

摘　　要：为了克服单级式光伏并网逆变系统输出电压低、适用范围受限等缺点,设计了一种两级式三相光伏并网逆变控制系统,分别给出了两级控制器的拓扑结构和控制策略,并且在Simulink中进行了系统仿真。该控制系统采用LCL滤波器,具有适用范围广、结构简单等特点,仿真结果表明,控制系统能输出始终同相位的三相电压和电流,输出功率稳定、运行速度快、可靠性高,能够达到并网目标。In order to overcome the shortcomings of single⁃stage grid⁃connected photovoltaic inverter system,such as low output voltage and limited application range,a two⁃stage three⁃phase grid⁃connected photovoltaic inverter control system is designed.The topology and control strategy of the two⁃stage controller are presented respectively,and the system simulation is carried out in Simulink.The control system which adopts LCL filter,has characteristics of wide application range and simple structure.The simulation results show that the control system can output three⁃phase voltage and current which are always in the same phase,the output power is stable,the operation speed is fast,the reliability is high,and the grid⁃connected target can be achieved.

关 键 词：光伏阵列 两级式三相并网逆变器 MPPT控制 SIMULINK 

分 类 号：TN012[电子电信—物理电子学]