摘要
针对光伏发电中发电量受光照强度、环境温度等自然条件变化的影响,而不能持续、稳定地输出电能这一问题,通过分析其能量的流动、功率传送大小的影响因素,提出一种光伏储能用双向DC/DC变换器,并对其性能以及软开关范围进行分析,得出能量与占空比以及移相角之间的关系,提出采用占空比和移相角两参数调节的方式,实现了最大功率输出的控制方式,最后在一台1 kW的样机上进行了实验验证。
The intensity of illumination and environmental temperature effect power transfer in PV system,thereby the export power is discontinuous and unstable.Detailed theoretical analysis in the affect factor of power-flow.A bi-directional DC/DC converter is presented when the converter is applied to the PV system.Along with the analysis of the performance and the range of soft-switching,educe the relation in power transfer and phase-shift with duty cycle control and realized the most power transfer.Finally,the experimental results are presented to verify the performance of the proposed converter.
出处
《电力电子技术》
CSCD
北大核心
2010年第6期51-52,共2页
Power Electronics
基金
广西教育厅科研立项项目(200911LX164)~~
关键词
变换器
光伏发电
移相加占空比控制
软开关
converter
photovoltatic generation
phase-shift plus duty cycle control
soft-switching
