Intelligent sleep and alternation control method of modular subway braking feedback device

The invention discloses an intelligent sleep and alternation control method of a modular subway braking feedback device. When the feedback device operates, each module is controlled to be sequentially put into operation or removed according to the magnitude of the subway braking energy which is monitored in the real time and the module operation priority level; when the subway braking energy is increased, each module is sequentially put into operation according to the module operation priority level; when the subway braking energy is decreased, each module is sequentially removed according to the module operation priority level. The modules are put into operation and removed according to the magnitude of the subway braking energy, so that the whole efficiency is optimized, and through the setting of the module operation priority level, during the process of sequentially putting the modules in operation, the module with high operation priority level is firstly put into operation, and during the operation of sequentially removing the module, the module with high operation priority level is firstly removed, so that the balance of the working time of the modules is achieved and the service life of the whole device is prolonged.