Subway train operation and traction power supply system coupled simulation modeling method

A traction power supply system and simulation modeling technology, applied in the field of simulation, can solve the problem of low accuracy and achieve the effect of accurate coupling relationship and accurate and effective description

Active Publication Date: 2016-10-26
CHENGDU YUNDA TECH CO LTD
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  • Abstract
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Problems solved by technology

[0004] What the present invention aims to solve is the problem that the accuracy of the simulation calculation re

Method used

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  • Subway train operation and traction power supply system coupled simulation modeling method
  • Subway train operation and traction power supply system coupled simulation modeling method
  • Subway train operation and traction power supply system coupled simulation modeling method

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Embodiment

[0038] figure 1 It is a schematic flow chart of a simulation modeling method for coupling a subway train operation and a traction power supply system according to an embodiment of the present invention. The simulation modeling method for coupling a subway train operation and a traction power supply system includes steps S1 to S3.

[0039] In step S1, based on the coupling relationship between the train traction power supply system and the train traction drive system, the property parameters of each power component are equivalently simulated to construct a vehicle-network coupling simulation calculation model of the subway power supply system.

[0040] The contact rail, DC feeder and busbar are regarded as homogeneous resistances and are equivalent to series connection of resistances and wires, the traction substation is equivalent to series connection of DC voltage sources and resistances, and trains are regarded as consuming active power and reactive power Electrical power so...

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Abstract

The invention discloses a subway train operation and traction power supply system coupled simulation modeling method which comprises the steps of: based on a coupling relationship between a train traction power supply system and a train traction transmission system, equivalently simulating attribute parameters of each power component so as to construct a train-network coupled simulation calculation model of a subway power supply system; according to the train-network coupled simulation calculation model of the subway power supply system, calculating a power flow value of the train traction power supply system; and according to the power flow value of the train traction power supply system and a train working diagram, regulating a departure interval so as to suit for trains in different operating conditions to operate on time. According to the simulation modeling method provided by the invention, the power components in the traction power supply system are subjected to equivalent simulation on the basis of the coupling relationship between the traction power supply system and the train traction transmission system, a coupling relationship between trains and a traction network can be more accurately described, and the multi-train operation train-network real-time electric coupling phenomenon on a subway site actual track is accurately and effectively described.

Description

technical field [0001] The invention relates to the technical field of simulation, in particular to a coupling simulation modeling method for subway train operation and traction power supply system. Background technique [0002] The traction power supply system is the most important basic energy facility in the urban rail transit system. Its function is to supply power to the electric vehicles in the rail transit system to ensure the normal operation of the rail transit trains. At present, my country's subway traction power supply system mostly adopts DC750V or DC1500V bilateral power supply mode. Scholars at home and abroad have conducted a lot of in-depth research on the DC side modeling method of subway traction power supply system and the calculation method of related power flow values ​​in this power supply mode. The most commonly used traction power supply system models include the loop current model and the node voltage model. The loop current model is only suitable f...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 李跃宗黄成周
Owner CHENGDU YUNDA TECH CO LTD
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