Voltage regulation system and regulation method based on active self-adaptive reduction

The invention discloses a voltage regulation system based on active self-adaptive reduction, which comprises a photovoltaic system, a power distribution network, an ADP controller and a master controller, and is characterized in that the ADP controller respectively calculates a voltage difference delta V and a power reduction value to obtain an adjustment value mADP required by a droop coefficient, the voltage difference delta V is a difference value between a real-time voltage and an ideal critical voltage, and the power reduction value mADP is a difference value between the real-time voltage and the ideal critical voltage; the power reduction value is an active power value pcurt required to be reduced for voltage adjustment; the master controller is used for calculating the voltage difference delta V, the adjusted droop coefficient mT and the active power value pcur, the master controller and the ADP controller act together to form closed-loop control on the active power value pcur and the adjusted value mA