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在Matlab仿真环境下建立了一个基于Boost拓扑的光伏充电器,并且引入模糊控制技术对该仿真模型进行最大功率点跟踪(MPPT)控制。不仅从标准测试条件、光照突变这两种情况来比较模糊控制跟踪策略与爬坡法、电导增量法的区别,还从温度持续上升、光照持续上升、采样时间间隔这三方面,对三种跟踪策略进行比较,能够更全面地证明模糊控制跟踪策略在响应速度以及稳定性上优于爬坡法和电导增量法。
A photovoltaic charger based on Boost topology was built under the Matlab simulation environment, and the fuzzy control technology was introduced to control the maximum power point tracking (MPPT) of the simulation model. In addition to the standard test conditions and the light mutation, the difference between the fuzzy control tracking strategy and the hill climbing method and the conductance incremental method are compared. From the three aspects of the temperature rising, the light rising continuously and the sampling time interval, Compared with the tracking strategy, it can be more fully proved that the fuzzy control strategy is superior to the hill climbing method and conductance incremental method in response speed and stability.