摘要
针对如何提高太阳能光伏发电系统的转化效率,对具有最大功率控制的系统进行研究,提出了一种双环控制方式。并以STM32为控制器,给出了其控制方法。通过Matlab建模设计光伏输出后的控制系统,新的控制系统实现了最大功率跟踪与功率因数校正。仿真表明,该方式具有简单、控制方便、效率高的优点。并通过实物加以验证该方法的可行性,该控制策略可应用于单极式光伏并网系统最大功率点跟踪控制,且实现了系统的高效率并网运行。
A double loop control method is proposed to improve the conversion efficiency of solar photovoltaic power generation system based on the research of maximum power control system. The control method based on STM32 controller is presented. A photovoltaic output control system capable of maximum power tracking and power factor correction is designed through Matlab modeling. Simulation shows that the proposed method has the advantages of simple structure,convenient control and high efficiency. Its feasibility is verified through the material object.The control strategy can be applied to the single-stage photovoltaic grid system with maximum power point tracking control to realize the efficient parallel operation system.
出处
《电子科技》
2016年第3期130-133,共4页
Electronic Science and Technology
