Torque control device for train traction inverter
A technology of traction inverter and torque control, which is applied in the field of machinery and can solve problems such as inability to apply trains accurately and trains to start smoothly
Active Publication Date: 2019-01-08
CRRC DALIAN R & D CO LTD
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- Application Information
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Problems solved by technology
[0005] The invention provides a torque control device for a train traction inverter, which is used to solve the problem that the prior art cannot apply an accurate torque value to the train for different line conditions, thereby making the train unable to start smoothly on slopes with different angles question
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[0038] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] It should be noted that the train described in the present invention may be a train, a bullet train, an urban rail vehicle, and the like.
[0040] The torque control device of the train traction inverter provided by the present invention is suitable for any type of train, and is used to solve the problem that the prior art cannot apply accurate torque values to the trai...
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The invention provides a torque control device of a traction invertor of a train. The torque control device comprises a three-axis acceleration sensor, a DSP (Digital Signal Processing) controller and a traction invertor main control unit, wherein the DSP controller is connected with the three-axis acceleration sensor and the traction invertor main control unit separately; the three-axis acceleration sensor is used for measuring the three-axis acceleration valve of the train at the current time; the DSP controller is used for determining an oblique angle of the train at the current time according to the three-axis acceleration valve of the train of the current time, and determining a torque compensation value of the traction invertor at the current time according to loading information and the oblique angle of the train at the current time obtained from the traction invertor main control unit, and sending the torque compensation value to the traction invertor main control unit, so that an actual torque value is obtained by the traction invertor main control unit according to the torque compensation value and a preset torque at the current time, and is outputted to the traction invertor, smooth starting of the train is realized, and the riding comfortableness of a passenger is improved.
Description
technical field [0001] The invention relates to mechanical technology, in particular to a torque control device for a train traction inverter. Background technique [0002] In urban rail transit, the traction inverter is the core of the traction system of the urban rail vehicle, which mainly provides power output for the traction motor of the urban rail vehicle, so the working performance of the traction inverter determines the ride comfort of the urban rail vehicle. Since urban rail vehicles need to adapt to running in cities with different landforms, and when the vehicle starts on different slopes, it is necessary to pre-apply torque to the traction inverter so that the vehicle can start smoothly on different slopes. [0003] In the existing traction system test process, the pre-applied torque setting value of the traction inverter is obtained through field trial and error. However, due to the uncertain road conditions of the vehicle, a single pre-applied torque setting v...
Claims
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IPC IPC(8): B61C3/00B60L15/20
CPCB60L15/20B61C3/00Y02T10/72
Inventor 姜岐广孙佳伟姜涛杜继光
Owner CRRC DALIAN R & D CO LTD