A photovoltaic system dummy resistor maximum power point tracking control based on

The present invention discloses a method of maximum power point tracking photovoltaic system based on the virtual control resistor, a photovoltaic array IV curve intersects the resistive characteristic of the load matching system according to this feature of the operating point, to match the load resistance characteristics of the resistance variable PV array through a virtual control algorithm changing the output power of the array, and the hill-climbing method using dichotomy combined search determines the maximum power point of a photovoltaic array, maximum power of the PV array for fast tracking control. The method of the present invention is applicable to various characteristics of the maximum power curve of the PV array tracking.