摘要
光伏并网发电系统是光伏系统发展的趋势。本文介绍了单级光伏系统的拓朴结构和工作原理,着重阐述了用电导增量法实现MPPT的基本原理。根据光伏阵列的特性,设计了一套新型的能实现最大功率跟踪的光伏并网逆变器,逆变器采用单级结构,控制部分采用基于DSP(TMS320LF2407)控制的最大功率跟踪和电流跟踪控制策略,实现了与网压同步的正弦电流输出以及高功率因数运行。
The photovohaic parallel mains generating system is a trend of photovoltaic system development. This paper introduces the topology construction and operation principle of single-stage photovoltaic system, mainly illuminates the basic principle of MPPT realized by conductance increment method. According to the characteristic of photovoltaic array, a novel photovoltaic parallel mains inverter with the function of maximum power point tracking is designed. The inverter is of single-stage construction and the maximum power point tracking and current tracking strategy based on DSP（TMS320LF2407） is applied to the controller of it. As a result, the sine current output in synchronism with mains voltage and operation at high power factor are realized.
出处
《防爆电机》
2006年第2期32-35,共4页
Explosion-proof Electric Machine
关键词
太阳能
光伏系统
最大功率点跟踪
电导增量
Solar power, photovoltaic system, maximum power point tracking, conductance increment.
