Photovoltaic micro-grid voltage drop compensation control method and control system thereof

The invention discloses a photovoltaic micro-grid voltage drop compensation control method and a control system thereof. The control method comprises the following steps: S1, acquiring three-phase bus voltage and load three-phase voltage of a photovoltaic micro-grid; s2, the three-phase bus voltage and the load three-phase voltage are modulated and then sent to a microprocessor; s3, the microprocessor obtains a voltage drop compensation instruction according to the three-phase bus voltage and the load three-phase voltage; s4, the microprocessor optimizes the output control parameter by using a differential evolution-black hole fusion algorithm to obtain an optimal control parameter # imgabs0 #; s5, outputting a PWM (Pulse Width Modulation) control signal to a driving circuit by the microprocessor according to the optimal control parameter # imgabs1 #; and S6, the drive circuit outputs a compensation voltage according to the PWM control signal to compensate the voltage of the photovoltaic micro-grid. According