光伏发电正弦波逆变系统设计  

Design of PV sinusoid (sine wave) inversion system

作　　者：杨志卫[1] 朱建华[1] 高俊[1] 

机构地区：[1]浙江科技学院,浙江杭州310023

出　　处：《电源技术》2011年第7期784-787,共4页Chinese Journal of Power Sources

基　　金：浙江省教育厅科研项目(20070720)

摘　　要：提出了一种小型光伏发电系统。系统主要由控制器和逆变器组成,控制器采用了太阳电池最大功率点跟踪技术和蓄电池充电精确控制技术,逆变器采用了DC/DC变换和DC/AC逆变二级变换技术和可编程低频正弦波DDS技术,使得系统具有较高的转换效率、可靠性和稳定性。试验结果表明,此光伏发电系统效率高、运行稳定。A small-scale photovoltaic power generation system was presented in this paper,which was mainly composed of the controller and inverter.The controller used a solar cell maximum power point tracking technology and the technology of precise control of battery charging.The inverter used the dual conversion technology featuring DC/DC conversion and DC/AC inversion as well as the programmable low-frequency sine wave DDS technology.All these technologies contributed to make the system be of high conversion efficiency,reliability and stability.The experiment results show that the photovoltaic power generation system boasts high efficiency and stable operation.

关 键 词：太阳电池 最大功率点跟踪(MPPT) 可编程低频正弦波DDS单片电路 SPWM 

分 类 号：TM914.4[电气工程—电力电子与电力传动]