一种实现太阳阵峰值功率跟踪的智能控制方法

AN INTELLIGENCE CONTROL METHOD FOR REALIZING PEAK-POWER-TRACKING OF A SOLAR ARRAY

首先讨论了峰值功率跟踪的一般概念及原理，然后提出了一种采用模糊自寻优智能控制原理实现太阳阵峰值功率跟踪的具体方法。该方法先根据模糊自寻优控制器的输出计算太阳阵电压的参考值，然后将此参考值与太阳阵的实际输出电压相比较，得出的误差信号去控制脉宽调制输出的占空比，以使太阳阵的输出电压达到此参考值。由于参考电压值的算法充分考虑了太阳阵峰值功率点的逼近问题，因此，上述过程多次进行，就能使得太阳阵的工作点最终到达峰值功率点。

This paper discusses the general concept and principle of peak power trac king and gives an approach to the intelligence control scheme which utilizes fuzzy self seeking optimum principle to realize peak power tracking of the SA(solar array).Fuzzy self seeking optimum controller is used to send out a reference voltage to the SA,which compares to the real SA output voltage.The derived error signal controls the duty ratio of pulse width modulator of switching regulator until the SA output voltage equals to the reference value.Since the problem of approaching peak power point is fully considered in the algorithm of the reference voltage,the operating point of the SA will near the peak power point after the above process proceeds repeatedly.