Contactor control method and device, traction control system and train
A technology of traction control system and control method, which is applied in the direction of test/monitoring control system, general control system, control/adjustment system, etc., and can solve the problem of error of hard-line checkback signal, low reliability of checkback signal, disconnection and other issues to achieve accurate control and improve credibility
Active Publication Date: 2020-06-23
BYD CO LTD
View PDF9 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In the related technology, it is usually used to increase the hard-line check signal, and judge the contactor’s pull-in state by detecting the hard-line check signal of the contactor’s auxiliary contact, but this method mainly relies on the linkage mechanical structure of the hardware to determine the contactor’s pull-in state. The pull-in state of the contactor, and the experimental data provided by the actual contactor supplier, it is known that the back-check signal is very unreliable. The situation that the checkback signal is closed and the actual contactor state is open, or the checkback signal is open but the actual contactor status is closed, therefore, the reliability of the checkback signal is not high, which leads to the failure of the contactor status The reliability of the detection is not high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0042] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0043] figure 1 is a schematic diagram of an application scenario of a contactor control method in the related art, such as figure 1 As shown, the control method of the contactor in the related art can be applied to figure 1 In the traction control system shown, it can be applied specifically to figure 1 In the fault processing module 15 in. Such as figure 1 As shown, the high-speed circuit breaker KM1 is connected with the pre-charge contactor KM2 and the main contactor KM3, and is used to control the connection between KM2,...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a contactor control method and device, a traction control system and a train. The control method of the contactor comprises the steps of: obtaining detection parameters, whereinthe detection parameters comprise the hard wire return detection signal of the to-be-detected contactor and any one or a combination of more of the following parameters: a voltage signal of an inverter, a current signal of the inverter and a disconnection identifier used for identifying disconnection of the contactor to be detected; determining the probability of abnormal disconnection of the to-be-detected contactor according to the detection parameters; and controlling the to-be-detected contactor and the motor contactor according to the probability. According to the contactor control method and device, the traction control system and the train, the credibility of state detection of the to-be-detected contactor is improved, and therefore control over the to-be-detected contactor and themotor contactor can be achieved more accurately.
Description
technical field [0001] The invention relates to the technical field of control, in particular to a contactor control method, device, traction control system and train. Background technique [0002] In rail transit technology, the electrical equipment in the rail transit system is usually controlled by controlling the pull-in of the contactor. [0003] In the related technology, it is usually used to increase the hard-line check signal, and judge the contactor’s pull-in state by detecting the hard-line check signal of the contactor’s auxiliary contact, but this method mainly relies on the linkage mechanical structure of the hardware to determine the contactor’s pull-in state. The pull-in state of the contactor, and the experimental data provided by the actual contactor supplier, it is known that the back-check signal is very unreliable. The situation that the checkback signal is closed and the actual contactor state is open, or the checkback signal is open but the actual con...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G05B23/02G01R31/327
CPCG01R31/327G05B23/0243G05B2219/24065
Inventor 车珍贺南王鑫正沈宝森李英涛
Owner BYD CO LTD