全数字化控制光伏并网逆变器的设计与实现  

Design and implementation of photovoltaic grid-connected inverter with digital control

作　　者：余运江[1,2] 杨波[1] 吴建德[1] 邓焰[1] 

机构地区：[1]浙江大学电力电子研究所,浙江杭州310027 [2]镇江船艇学院工程系,江苏镇江212003

出　　处：《机电工程》2008年第10期6-9,33,共5页Journal of Mechanical & Electrical Engineering

摘　　要：逆变器作为光伏并网发电系统与电网接口的主要设备,其控制技术已成为研究的热点。简要介绍了光伏并网逆变器系统的结构和工作原理,重点分析了其并网工况的控制方案设计及其数字实现过程。最后,利用TMS320LF2407A型数字信号处理器(DSP)作为控制器,制作了1台1 kW的实验样机。仿真和实验结果表明,该设计方案实现了输出电流对电网电压的良好、实时跟踪。The inverters control technology becomes a research hotspot, because the inverter is a important equipment, which connects the photovoltaic grid-connected system and the grid. Firstly, the structure and the principle of the photovohaic grid-connected system were introduced in brief, then the control scheme and its digital implementation were analyzed in detail. Finally, the digital signal processor（DSP） of TMS320LF2407A was adopted as the controller for the experimental prototype of 1 kW photovoltaic grid-connected inverter. Simulation and experimental results are done to verify the effectiveness of the proposed scheme.

关 键 词：正弦脉宽调制 并网逆变器 光伏 数字信号处理器 最大功率点跟踪 

分 类 号：TM46[电气工程—电器]