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.
出处
《机电工程》
CAS
2008年第10期6-9,33,共5页
Journal of Mechanical & Electrical Engineering
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
sine pulse width modulation（ SPWM ）
grid-connected inverter
photovoltaic
digital signal processor（DSP）
maximum power point tracking（MPPT）
作者简介
余运江（1972-），男，河南商丘人，主要从事光伏并网发电技术方面的研究E-mail：yjyu200509@zju.edu.cn
通信联系人：邓焰，男，副教授，博士．E-mail：dengyang@zju.edu．cn
