In the dynamic characteristic detection of subway train circuit breakers,the introduction of a flywheel energy storage system in the urban rail transit power supply system can effectively recover the regenerative braking energy of the train and stabilize the circuit breaker switch operating voltage.However,the single flywheel energy storage system has a small capacity,and it is difficult to meet the demand for train regenerative braking energy utilization.Flywheel energy storage array(FESA)is an effective means to solve this problem.This paper first analyzed analyzes the mathematical model and operating characteristics of the flywheel energy storage system.Then,considering the requirements for voltage stabilization,energy saving and field weakening,a control strategy for a single flywheel energy storage system based on multiple voltage thresholds was is given.Subsequently,aiming at the core issues of flywheel array speed-balance control and working mode management,two flywheel energy storage array control strategies based on speed-error regulation control and based on"voltage-speed-current"three closed-loop control were are proposed.Finally,the simulation and experiment verify that the proposed control strategy can be arrayed.the feasibility of flywheel energy storage array control strategy.
关键词
断路器特性检测/飞轮储能阵列/永磁同步电机/飞轮均速控制/储能工作模式
Key words
circuit breaker characteristic testing/flywheel energy storage array/permanent magnet synchronous motor/flywheel speed-balance control/energy storage working mode
维普
万方数据