Control device and method for HSCB automatic re-operation under subway train VVVF fault work condition

A fault condition, automatic technology, applied in the direction of locomotives, etc., can solve the problems of HSCB trains not being able to recover in time, unable to close the HSCB, and the driver's operation requirements are high, so as to reduce the risk of uncertainty, high real-time performance, and accurate timing control process. Effect

Active Publication Date: 2014-01-22
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Problems solved by technology

Therefore, even if the driver operates the fault reset button to reset the fault within this fixed period of time, and then presses the HSCB close button, VVVF cannot close the HSCB
Because the driver still needs to pay attention to a lot of other information of the train during the operation of the main line, the existing processing s

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  • Control device and method for HSCB automatic re-operation under subway train VVVF fault work condition
  • Control device and method for HSCB automatic re-operation under subway train VVVF fault work condition
  • Control device and method for HSCB automatic re-operation under subway train VVVF fault work condition

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[0044] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] like figure 1 Shown is a schematic diagram of the control principle of the present invention in a specific application example. The control system includes DCU, which is a device for controlling VVVF. The DCU includes an analog circuit processing unit, a digital signal processing unit, a real-time fault protection programmable logic unit, a digital input / output programmable logic control unit, an embedded processing unit, and a parallel data bus; There are two kinds of protection and software protection, which are implemented in real-time fault protection programmable logic unit and embedded processing unit respectively.

[0046] The analog circuit processing unit is used to convert the voltage of VVVF and the current signal input by the current sensor into voltage signals that can be received by the real-time fault protectio...

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Abstract

The invention discloses a control device and a method for HSCB (high-speed circuit breaker) automatic re-operation under a subway train VVVF (variable voltage and variable frequency) fault work condition. The device comprises a drive control unit, an analog circuit processing unit of the drive control unit is used for converting a VVVF state signal into a voltage signal and real-timely outputting the voltage signal to a real-time fault protection programmable logic unit and a digital signal processing unit for use in real-time fault hardware protection and real-time voltage and current sampling, and the digital signal processing unit is connected with an embedded processing unit through a parallel data bus; the real-time fault protection programmable logic unit and a digital quantity input/output programmable logic control unit are connected with the embedded processing unit through the parallel data bus; the embedded processing unit is connected with a subway train network system through an MVB bus. The method is realized based on the device. The device and the method have the advantages of fast operating speed, precise sampling, precise control, and high automatization degree, and can reduce the operating strength of a driver and improve the operating reliability.

Description

technical field [0001] The invention mainly relates to the control field of subway trains, in particular to a control device and method for HSCB automatic re-initiation under the VVVF failure condition of subway trains. Background technique [0002] With the expansion of city scale, urban traffic problems are becoming more and more prominent. Metro trains have become one of the important means to solve urban traffic because of their large capacity, fast speed, safety and reliability, and punctual operation. Frequency conversion speed control system (hereinafter referred to as VVVF) is the core component of subway train traction control. Variable Voltage and Variable Frequency is a device that can achieve constant magnetic flux and control the speed of the motor by changing the frequency and voltage at the same time. During the operation of the subway train, there is a working condition that the high-speed circuit breaker (High-Speed ​​Circuit Breaker, hereinafter referred t...

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Application Information

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IPC IPC(8): B61C17/00
Inventor 黄浩付刚刘良杰黄明明曹霄姚中红林浩赵清良何伟毛康鑫付玉豪李宁
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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