A medium-speed maglev traction frame system

Abstract

The invention discloses an intermediate-speed magnetic levitation traction frame system, and applies to the field of train traction system control. A frame control scheme with one compartment and double control units is adopted, and each control unit at least comprises one traction inverter and one linear motor unit comprising six linear motors; the output ends of the traction inverters are connected with the input ends of the linear motor units; the six linear motors in each linear motor unit adopt a three-serial connection two-parallel connection mode for wiring to meet the demand for traction of a maglev train. On the premise that the power supply mode of a power supply station and the capacity of each traction inverter are not changed, the system guarantees the end voltage of the linear motors by the adoption of the frame control scheme with double control units for a traction system, and meets the demands for the power design of the linear motors and the traction capacity design of the maglev train.

Description

technical field [0001] The invention belongs to the field of train traction system control, and in particular relates to an architecture technology of a maglev train traction control system. Background technique [0002] Compared with traditional urban rail transit such as subways and low floors, medium and low-speed maglev trains have various advantages. High comfort, ability to pass through ultra-small radius curves, strong climbing ability and relatively low cost all make medium and low-speed maglev trains It has become the most popular development direction of rail transit and has a good development prospect. Since the speed of urban rail transit such as subways and light rails currently popularized is generally low, and suburban transportation has higher requirements for speed, the operating speed of medium and low speed maglevs can reach 200km / h, which just fills the gap between subways and high-speed rails . At present, medium and low-speed maglev trains at home and...

AI Technical Summary

Problems solved by technology

Restricted by various performance conditions, the maximum capacity of a traction inverter is 1500kVA. Obviously, the capacity of the traction motor in this single traction mode cannot meet the requirements. The total traction force cannot meet the traction capacity requirements at the speed level of 200km / h

(2) On the premise that the traction linear motor meets the capacity requirements, due to the increase in the total capacity of the traction system, the high-voltage junction box, high-voltage electrical cabinet and reactor are limited by the technical parameters of internal components, and the increase in current will lead to a larger temperature rise of the equipment. The service life is reduced, and even the equipment is burned to cause serious consequences

Therefore, in terms of performance, it will not be able to meet the requirements, and the equipment will be limited by the installation size, making it difficult to adapt to the special structure of the maglev vehicle body

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