Three-phase power supplying and collecting device for maglev train

Abstract

The invention provides a three-phase power supplying and collecting device for a maglev train, and relates to the technical field of maglev trains and power supply thereof. A cross beam is arranged onthe middle part of a maglev train bogie; three longitudinal bearing bases are arranged on the lower surface of the cross beam, and three insulating sleeves, three power collecting boots and three power supplying rails are arranged in a matching manner; the two ends of the horizontal parts of the insulating sleeves adopt rotating shaft structures, and the vertical parts thereof adopt hollow tubular structures; the upper parts of the power collecting boots are boot handles, the lower parts thereof are boot bodies, and the bottom of the boot bodies are concavely semicircular; the surfaces of thetops of the power supplying rails are convexly semicircular; the tops of the power supplying rails contact the bottoms of the power collecting boots to receive power; the boot handles are inserted into the hollow vertical parts of the insulating sleeves; cables are connected to the top ends of the boot handles; the cables runs through the inner parts of the vertical parts of the insulating sleeves and are led out from the top ends of the insulating sleeves; a three-phase power supply supplies power to a three-phase maglev train converter through the power supplying and collecting device consisting of the power supplying rails, the power collecting boots and the cables; the contact forces between the power collecting boots and the power supplying rails are equal to the gravity forces of the power collecting boots.

Description

technical field [0001] The invention relates to the technical field of power supply for maglev trains. Background technique [0002] There are two types of maglev trains: long stator drive and short stator drive. The long-stator maglev train is driven by a long-stator linear synchronous motor, that is, the three-phase AC winding of the motor stator is laid on both sides of the ground line, and the power supply is provided by a converter (frequency conversion and voltage conversion) installed in the ground substation. The operation center controls the operation of the train through the synchronous control of the synchronous motor. Its advantage is that the power of the ground synchronous motor is large, and the maglev train has no mechanical contact with the long stator line, which is suitable for high-speed operation. However, its disadvantage is that the cost of the motor stator (long stator) winding is inevitably high due to the laying of the motor stator (long stator) wi...

AI Technical Summary

Problems solved by technology

Since the motor winding of the short stator maglev train is on the car, the converter (frequency conversion and voltage conversion) that provides the power supply must also be installed in the car, and it needs to be powered from the ground. The contact of the collector shoe completes the power supply and collection of the converter on the train. The fluctuation and vibration of the train will seriously affect the contact performance, thereby affecting the performance of the current collection (current collection), and the higher the speed of the train, the greater the impact, so Although the cost of the short stator method is very low, it is not suitable for high-speed applications

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