对光伏的两种输出最大功率点追踪法分析

Power Feedback Method and P&O-based maximum power point tracking for photovoltaic system

分析了两种最大功率追踪(MPPT)的方法:扰动观察法(Perturbation and Observation,P&O)与功率反馈法。利用仿真模拟并评估了两种方法的性能,二者功率追踪精确性都可以达到99%以上,但是不同的追踪手段会在追踪时间、系统稳定性、实现成本等方面产生不同的影响。本文旨在仿真结果的基础上,对上述问题进行分析与优化。

This study presents a detailed analysis of the Power Feedback Method and Perturbation and Observation(P&O)Method for Maximum Power Point Tracking(MPPT)on Photovoltaic modules.The purpose of this study is to test and evaluate the performance of these two kinds of method.Both of them can reach the MPPT accuracy that is higher than 99%,however,the different tracking methods will cause the different issues regarding to the tracking time,the stability,the cost of implementation,etc.In this case,the pros and cons based on the simulation results will be evaluated and optimized.