扰动观察法(Perturbation and Observation)是目前经常被采用的MPPT方法之一。其原理是每隔一定的时间增加或者减少光伏阵列输出电压这一过程称为“干扰”并观测之后其输出功率变化方向若ΔP>0说明参考电压调整的方向正确可以继续按原来的方向“干扰”若ΔP<0说明参考电压调整的方向错误则需改变“干扰”的方向[6]。 扰动观察法仿真 在Matlab/Simulink建立如图1所示仿真电路其中光伏电池模型、Boost电路阻抗变换关系均采用嵌入函数形式[7]。控制算法的输入为系统工作电流和工作电压系统输出在前面我们设定为电压增量但是电压增量还是要转换为PWM电路的占空比为了便于系统仿真和电路实现所以将系统输出直接指定为占空比D。
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final 301040-libre.pdf PV fuzzy mppt readme.txt 光伏仿真模型.pdf 基于BOOST电路的光伏阵列最大功率点跟踪仿真研究.pdf 电导增量Incremental Conductance
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