基于混合逻辑动态的MPPT建模仿真

MODELING AND SIMULATION OF MPPT BASED ON MIXED LOGIC DYNAMIC

针对光伏阵列的输出特性,分析最大功率点跟踪的控制原理,通过建立混合逻辑动态模型,提出一种新的MPPT控制算法--基于混合逻辑动态的功率预测控制算法。与扰动观察法进行比较,仿真结果表明该算法不但可实现对最大功率点的跟踪,同时也可改善整个光伏系统的动态性能,保证最大功率点跟踪的精准性,实现整个系统控制的快速性,验证了该算法的优越性。

Aiming at the output characteristics of photovoltaic array,the control principle of maximum power point tracking is analyzed,and a new MPPT control algorithm based on hybrid logic dynamics is proposed by establishing a hybrid logic dynamic model. Compared with the perturbation and observation method,the simulation results show that this algorithm not only achieves the maximum power point tracking,and improve the dynamic of the whole PV system. To ensure maximum power point tracking precision,realizes the whole system control fast,demonstrate the superiority of the proposed algorithm.