摘要
本文介绍小功率光伏并网逆变系统,该系统应用SPWM技术将光伏电池电压逆变成标准的正弦单相220V、50Hz交流电压。改进的固定频率电流跟踪控制方法使电流跟踪误差明显减小,并且系统实现了最大功率点的跟踪。本文阐述了该变换器的硬件设计及软件流程,实验证明本装置运行稳定、性能优良。
A low-power grid-connected PV inverter system is introduced in this paper. This system realizes invertingbattery voltage charged by solar cells into standard single phase 220V/50Hz sine AC voltage in the SPWMmethod. The design of hardware and software of the system is described in the article, and experiment resultis given.
出处
《电子设计应用》
2003年第7期75-78,3,共4页
Electronic Design & Application World
