Active control method and device of converter interface power supply and electronic equipment

Abstract

This invention provides an active power control method, apparatus, and electronic device for converter interface power supplies. The method includes: when the total system power reserve is greater than the disturbance power value, and some converter interface power supplies exceed the feasible power range, distributively controlling the active power output of some converter interface power supplies based on their power deviation, so that all converter interface power supplies operate within the feasible power range or at their power limits, and ensuring the system steady-state frequency is at its rated value; and centrally controlling the active power output of each converter interface power supply based on the phase angle reference value issued by the grid control center to adjust the grid power flow. This method enables the converter interface power supply-driven system to maintain a frequency almost always at its rated value when facing power disturbances, while also providing good synchronization stability characteristics under both small and large disturbances. Furthermore, the converter interface power supply can achieve good compatibility with existing power supplies to adapt to the gradual transformation of the power grid.

Images