基于嵌入式光伏逆变并网系统设计  

Design of PV Inverter for Grid Connect System Based on Embedded

作　　者：魏爱娟[1] 李茜[1] 汤伟[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,西安710021

出　　处：《计算机测量与控制》2013年第1期257-259,290,共4页Computer Measurement &Control

基　　金：国家国际科技合作项目(2010DFB43660)

摘　　要：为了降低分布式光伏并网控制器的成本与功耗,提出一种以低功耗处理器STM32为主控制器的光伏逆变并网系统,包括SP-WM波调制模块、死区延时与光电隔离模块、驱动电路模块、LC滤波电路、逆变主电路、电网信号采集模块等设计;基于嵌入式光伏逆变并网系统死区延时模块死区时间可调,逆变效率为85.6%,能够有效地防止逆变颠覆的产生;通过试验测试表明,此系统不仅能够满足光伏逆变并网系统实时处理的要求,并网效果也比较理想。This paper proposed the embedded PV inverter Grid--Connect system, in order to reduce the distributed grid--connected pho- tovoltaic controller cost and power consumption, which is consisted of SPWM wave modulation module, dead --time delay and the photoelec- tric isolation module, IR2110 module, LC filter circuit, inverter main circuit , power system signal acquisition module. The dead time of the designed dead--band unit is adjustable and inverter efficiency of 85.6% , which can effectively prevent inverter subversion. The experimental results show that the system can not only meet the design requirements, the Grid--Connect effect is also ideal.

关 键 词：嵌入式系统 光伏逆变 脉冲宽度调制 并网 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]