The invention provides a rail transit vehicle high-voltage system fault detection and protection method and system, and the method comprises the steps: determining that a vehicle may have a high-voltage insulation fault through no network voltage when the insulation of a motor train unit high-voltage system fails; the interval from the first tripping of the contact network to the automatic restarting is 2s, and the vehicle needs to descend the pantograph to a safe distance by utilizing the no-power time of the contact network. Rapid pantograph descending is achieved through the pantograph rapid pantograph descending valve and the vehicle control logic in the non-power time after the fault, and secondary damage to the overhead line system is avoided.
本发明提供了一种轨道交通车辆高压系统故障检测、保护方法及系统,动车组高压系统绝缘失效时,通过无网压可判定车辆可能存在高压绝缘故障;接触网第一次跳闸至自动重投间隔2s,利用此段接触网无电时间,车辆需将受电弓下降至安全距离。本发明通过受电弓快速降弓阀及车辆控制逻辑在故障后无电时间实现快速降弓,避免对接触网的二次损伤。
Rail transit vehicle high-voltage system fault detection and protection method and system
一种轨道交通车辆高压系统故障检测、保护方法及系统
2022-07-19
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
High-voltage system of double-flow system rail transit vehicle
Europäisches Patentamt | 2021
|RAIL TRANSIT TRAIN AND FAULT PROTECTION METHOD THEREOF
Europäisches Patentamt | 2020
|High-voltage device for double-flow system rail transit vehicle
Europäisches Patentamt | 2021
|