Intelligent timing synchronization control panel and control method for metro vehicle

A synchronous control, intelligent timing technology, applied in locomotives, AC networks with the same frequency from different sources, AC network circuits, etc., can solve the problems of insufficient timing accuracy, inability to meet, large size, etc. The effect of avoiding electrical failure and high control precision

Pending Publication Date: 2022-03-08
青岛地铁运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional timing controller cannot quickly capture the phase difference of the AC power supply of the subway vehicle and cannot quickly adjust the AC phase of the subway vehicle, and the traditional timing controller has insufficient timing accuracy, low intelligence, and large size, and cannot meet the current control requirements.

Method used

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  • Intelligent timing synchronization control panel and control method for metro vehicle
  • Intelligent timing synchronization control panel and control method for metro vehicle
  • Intelligent timing synchronization control panel and control method for metro vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the subway vehicle intelligent timing synchronization control board of the present invention includes a main control module, an auxiliary control module, a clock module, a DC power supply module and a backup module, wherein:

[0042] The main control module includes the main control chip and the AC contactor KM. The main control chip adopts the FPGA chip. The FPGA chip has the advantages of convenient and flexible programming, high integration, fast processing speed, low power consumption, and high cost performance; the FPGA chip reads the clock The data of the module collects the voltage information of several vehicles, and communicates with the inverters of several vehicles respectively. The AC contactor KM is used to correct and control the AC power of the unreachable vehicles and connect them in parallel after phase synchronization. The FPGA chip is set on the intelligent timing synchronization control board of the subway vehicle, collects...

Embodiment 2

[0050] Such as figure 2 As shown, the control method of the subway vehicle intelligent timing synchronization control panel of the present invention comprises the following steps:

[0051] Step S1: Timing setting: Write the conversion time of the voltage transformers of several vehicles in different phases into the main control chip, that is, the constant array in the FPGA chip program, and obtain the corresponding value by querying the array during use.

[0052] Step S2: Perform calculation: the main control chip (FPGA chip) respectively calculates the time interval after the three-phase AC phase of several vehicles and the delay time interval required by one of the vehicles;

[0053] The formula for calculating the time interval after the three-phase AC phase of several vehicles is as follows:

[0054] Δt 0 =K AS ×(t AUS +t AVS +t AWS ) / 3+K AAD ×(t AUAD +t AAD +t AWAD )3+K ACT ×t ACT -[K BS ×(t BUS +t BVS +t BWS ) / 3+K BAD ×(t BUAD +t BVD +t BWAD )3+K BC...

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Abstract

The invention relates to the technical field of urban rail subway control, and discloses a subway vehicle intelligent timing synchronization control panel and a subway vehicle intelligent timing synchronization control method. The alternating current contactor receives an instruction to correct and control alternating current of a plurality of vehicles to be connected in parallel after phase synchronization; the auxiliary control module is used for assisting a control chip to control a semiconductor device to carry out chopping on the direct current; the clock module comprises a crystal oscillator, and the crystal oscillator provides a clock signal for the main control chip; the direct-current power supply module supplies power to the main control module, the auxiliary control module and the clock module; when the direct current power supply module is powered off, a standby battery can continue to supply power to the main control chip and the auxiliary control chip, and it is guaranteed that the clock chip replaces the crystal oscillator to provide clock signals to the main control chip. The power supply phase of the metro vehicle can be accurately corrected so that the two vehicles can be safely connected in parallel, the intelligent degree is high, and the control precision is high.

Description

technical field [0001] The invention relates to an intelligent timing synchronization control board and a control method for subway vehicles, belonging to the technical field of urban rail subway control. Background technique [0002] When the subway vehicles are connected to rescue, it is necessary to connect a rescue subway vehicle to another rescued subway vehicle, and the AC380V alternating current generated by the inverters of the two connected subway vehicles also needs to be connected in parallel. [0003] But because the AC380V alternating current of the subway vehicle is generated by the direct current inverter of the catenary (or contact rail) of the subway power supply. Because of the particularity of the AC power supply of subway vehicles, the AC power inverters of different subway vehicles often have different phases, and the parallel connection of the AC power supplies of subway vehicles with different phases will cause serious failures in the electrical system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61C17/00H02J3/00H02J3/08H02J3/38
CPCB61C17/00H02J3/00H02J3/08H02J3/38
Inventor 邓举明李世伟逄顺勇王培文刘永兴阎炳鑫
Owner 青岛地铁运营有限公司
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