基于优化MPPT算法的快速高效光伏充电控制器设计

The Design for Fast and Efficient Photovoltaic Charging Controller Based on Optimized MPPT Algorithm

为了有效提高光伏电池板的输出功率,设计一种快速、高效和经济的光伏充电控制器。本文首先将恒压式最大功率跟踪(maximum power point tracking,MPPT)算法和电导增量式MPPT算法相结合,提出了一种新的优化MPPT算法。该算法可以从电导增量中获得实际功率,并且工作速度比电导增量式MPPT更快,开路电压只需测量一次即可将功耗降至最低。经数字信号处理器(digital signal processing,DSP)开发板对太阳能电池板(Solarex-MSX-60)测试,该充电控制器的性能较其他光伏充电控制器表现出良好的动态响应速度且精确度较高。

In order to effectively improve the output power of photovoltaic panels,a fast,efficient and economical photovoltaic charging controller is designed.This paper firstly combines the maximum power point Tracking(MPPT)algorithm with the conductance incremental MPPT algorithm and proposes a new optimized MPPT algorithm.This algorithm can obtain the actual power from the conductance increment,and the working speed is faster than the conductance increment MPPT,and the open-circuit voltage only needs to be measured once to reduce the power consumption to the minimum.Through the test of solarex-MSX-60 solar panel developed by digital signal Processing(DSP),it is verified that the performance of the charging controller is better than that of other photovoltaic charging controllers in dynamic response speed and higher accuracy.