MOTOR TRAIN UNIT RESCUE RETURNING DEVICE

A motor train unit rescue returning device, wherein a motor train unit is in a rescue returning state. The device comprises a storage battery (1), a precharging circuit (2), a three-phase inverter (3), an auxiliary inverter (4) and an alternating-current asynchronous motor (5). The precharging circu...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHU, JIANBO, GUAN, JUNQING, JI, HUIGANG, ZHANG, RUIFENG, GAO, YONGJUN
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	A motor train unit rescue returning device, wherein a motor train unit is in a rescue returning state. The device comprises a storage battery (1), a precharging circuit (2), a three-phase inverter (3), an auxiliary inverter (4) and an alternating-current asynchronous motor (5). The precharging circuit (2) comprises a DC-DC converter (21) and is used for boosting a first direct-current voltage provided by the storage battery (1) to enable the voltage on a bus to reach a second direct-current voltage. The three-phase inverter (3) is used for converting the second direct-current voltage into an alternating current to premagnetize the alternating-current asynchronous motor (5) to enable the alternating-current asynchronous motor (5) to enter a fourth quadrant for operation. After the alternating-current asynchronous motor (5) enters the fourth quadrant for operation, the alternating-current asynchronous motor (5) outputs an alternating current according to mechanical energy generated by dragging the motor train u