基于隔离式Cuk电路的黄金分割法MPPT  

Isolated Cuk Circuit based Maximum Power Point Tracking by Golden Section Method

作　　者：张矛盾[1] 张淼[1] 王锋[1] 陈东升[1] 

机构地区：[1]广东工业大学自动化学院,广东广州510090

出　　处：《陕西电力》2009年第9期1-5,共5页Shanxi Electric Power

基　　金：国家自然基金重点项目分散式风力-太阳能发电系统的混合控制研究(60534040)

摘　　要：基于隔离式Cuk电路对光伏电池进行DC/DC变换,着重阐述了用黄金分割变步长算法实现最大功率点跟踪(MPPT)的基本原理,并在Matlab/Simulink环境下建立其光伏电池动态仿真模型,仿真结果验证了该系统具有加快跟踪速度,提高跟踪灵敏度和准确度,提高效率的优点。最后,构建了带RCD吸收电路的隔离式Cuk电路的硬件电路,实验结果证明了该系统的可行性和可靠性。DC / DC conversion for photovohaic cells is carried out based on isolated Cuk circuit in this paper. The principle of realizing maximum power point tracking （MPPT）by golden section method is mainly expounded, and a dynamic simulation model is established by using Matlab/Simulink software. The simulation results demonstrate that the proposed system can track rapidly, sensitively, accurately and improve the efficiency. Finally, the hardware circuit of the isolated Cuk converter with RCD snubber circuit is constructed, and the experimental results show that the feasibility and reliability of the system.

关 键 词：隔离式Cuk电路 黄金分割法 最大功率点跟踪(MPPT) DSP微控制器 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]