A method for cooperative control of an energy storage converter and a battery management system

Abstract

The application discloses a kind of energy storage converter and the collaborative control method of battery management system, belong to energy storage control technical field.This method is by real-time acquisition power grid and battery data, obtains fluctuation characteristics and state index by filtering feature extraction;Using time domain decomposition, control task is divided into fast response layer and slow tracking layer, respectively assigned to converter and battery management system;When power grid voltage sudden drop, quickly activate power regulation and determine the adjustment boundary in combination with battery power;Control sequence is obtained by coordinating optimization algorithm fusion two layer outputs;The time scale matching degree of electrical response and chemical state is calculated, and the matching degree is lower than iteration optimization task segmentation;Closed-loop monitoring and strategy re-optimization are realized by relying on feedback cycle, and finally seamless joint control strategy is formed.The application effectively solves the problems of time scale mismatching, response out of sync and insufficient regulation accuracy between converter and battery management system, and significantly improves the stability, response speed and operating efficiency of energy storage system.