mppalgoritm

代码说明：

  MPPT is an electronic system that searches the MPP of a PV panel. It should be noted from start that MPPT does not use the same principle as mechanical tracking, where the panel is moved (rotated) in position (azimuth and elevation) so as maximum sunlight is incident on it. MPPT controllers (trackers) change the output impedance of the PV panels, thus changing its operating point. However, MPPT can be used in conjunction with mechanical sun tracking systems to improve power generation. Typical MPPT controllers make use of a power converter to track MPP of the PV system. Power