The embodiment of the invention discloses an air conditioner load control system. The system comprises an auxiliary power supply system, a central control unit and an air conditioner controller, wherein an auxiliary converter in the auxiliary power supply system is integrated in a traction converter, a three-phase power supply bus penetrating through the full-motor train unit provides a three-phase power supply for an air conditioning system comprising a plurality of air conditioning loads, the three-phase power supply bus is connected with a plurality of three-phase isolation contactors, andthe three-phase isolation contactors divide the three-phase power supply bus into a plurality of sections; and when the auxiliary converter has a grounding fault, the three-phase isolation contactorson the two sides of the grounding point are switched to be in an off state so as to remove the fault unit; when the auxiliary converter has an equipment fault, a plurality of three-phase isolation contactors are in a closed state. The central control unit sends a load shedding signal to the air conditioner controller according to the working state of the auxiliary converter, and the air conditioner controller controls the air conditioner load to execute the corresponding working mode according to the load shedding signal. The invention further provides an air conditioner load shedding controlmethod and device and a motor train unit.
本申请实施例公开了一种空调负载控制系统,包括辅助供电系统、中央控制单元和空调控制器。辅助供电系统中的辅助变流器集成于牵引变流器内部,通过贯穿全动车组的三相供电母线为包括多台空调负载的空调系统提供三相电源,三相供电母线连接多个三相隔离接触器,多个三相隔离接触器将三相供电母线分隔成多段。当辅助变流器发生接地故障时,接地点两侧的三相隔离接触器切换至断开状态,以切除故障单元。当辅助变流器发生设备故障时,多个三相隔离接触器处于闭合状态。中央控制单元根据辅助变流器的工作状态向空调控制器发送减载信号,空调控制器根据减载信号控制空调负载执行相应工作模式。本申请还提供空调减载控制方法、装置及动车组。
Air conditioner load control system, air conditioner load reduction control method and device and motor train unit
空调负载控制系统、空调减载控制方法、装置及动车组
2021-01-29
Patent
Electronic Resource
Chinese
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