【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。更多还原

【Abstract】 DC/DC conversion for pholovohaic 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.更多还原