三相光伏发电SPWM逆变技术研究  

Research on Three-phase Photovoltaic Generating SPWM Contravariant Technology

作　　者：方烜 熊舟[1] 王卓远[1] FANG Xuan;XIONG Zhou;WANG Zhuo-yuan(Hubei Province Key Laboratory of Step Hydroelectric Station and Control,Sanxia College,Yichang 443002,China)

机构地区：[1]梯级水电站运行与控制湖北省重点实验室(三峡大学),湖北宜昌443002

出　　处：《电气开关》2018年第2期42-44,49,共4页Electric Switchgear

摘　　要：本文以离网型光伏发电系统的输出逆变单元为研究对象,首先分析了三相光伏逆变电路的基本工作原理,给出了三相光伏发电PWM逆变器的开关状态。然后以静止坐标系为例,给出了相应的相电压和线电压的表达式,并以SPWM波控制方法为例,研究了光伏逆变器的控制策略,最终输出了高质量的交流电压,验证了所选方法的正确性和有效性。In this paper,the output inverter unit of off-grid photovoltaic power generation system is taken as the research object.Firstly,the basic working principle of the three-phase photovoltaic inverter circuit is analyzed,and the switch state of the three-phase PV power PWM inverter are given.Then,stationary coordinate system is studied as an example,the corresponding expression of phase voltage and line voltage is given.Taking the SPWM wave control method as an example,the control strategy of PV inverter is studied.Finally,high quality AC voltage,and verify the correctness and validity of the selected method.

关 键 词：光伏逆变器 SPWM波 PSIM仿真 

分 类 号：TM464[电气工程—电器]