摘要
光伏并网发电系统需要一种快速准确的电流控制方法使其能最大限度地向电网输送高质量电能,在分析无差拍电流控制工作原理的基础上,对常规的无差拍控制算法进行了适当改进,并给出对控制效果影响较大的输出电流检测方法。基于PSIM对相关算法的控制效果进行了仿真,并最终应用到实际的单相单级式光伏并网系统的并网电流控制当中。良好的仿真和样机实验结果验证了该方法的可靠性和有效性。
A fast and correct current control method is required for photovoltaic power generation systems to maximize the high-quality output power.Based on the analysis of deadbeat current control strategy,some appropriate improvements are made on the conventional deadbeat current control strategy.And the output current detection method is given.Then the control strategy is simulated with PSIM to validate its feasibility.At last the algorithm is applied to a single-phase single-stage grid-connected photovoltaic system.Simulation and prototype experimental results show the reliability and validity of the method.
出处
《电力电子技术》
CSCD
北大核心
2010年第11期1-3,共3页
Power Electronics
基金
福建省自然科学基金项目(2008J0191
2009J01279)~~
关键词
光伏并网
无差拍
电流控制
photovoltaic grid-connected
deadbeat
current control
