Subway train delay adjustment method considering passenger flow influence and regenerative braking energy utilization

A technology of regenerative braking and adjustment method, which is applied in the direction of biological model, data processing application, biological neural network model, etc., which can solve the problems of subway operation system influence, train delay, and shortened interval between trains, etc., and achieve high use value Effects with applied foreground

Pending Publication Date: 2022-04-08
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0002] With the rapid development of the subway operation system, its scale is constantly expanding, and the density of the subway network is also constantly expanding. It puts a lot of pressure on the operation department of the subway, and a small mistake may cause the delay of the train
If the train is not adjusted in time after the delay, it will have a great impact on the subway operation system

Method used

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  • Subway train delay adjustment method considering passenger flow influence and regenerative braking energy utilization
  • Subway train delay adjustment method considering passenger flow influence and regenerative braking energy utilization
  • Subway train delay adjustment method considering passenger flow influence and regenerative braking energy utilization

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Embodiment

[0068] combine figure 1 , the present invention considers the influence of passenger flow and regenerative braking energy utilization of the subway train delay adjustment method, comprising the following steps:

[0069] Step 1, build the basic data module:

[0070] Including line data, platform data, substation data, planned operation schedule, interval operation power data, predicted platform passenger flow data, train departure interval, etc.

[0071] Step 2, establish a stop time model, as follows:

[0072] (1) Time model of the alighting period

[0073] The time required for passengers to get off the bus is approximately linear with the number of people getting off the bus. The mathematical model is as follows:

[0074] T a (y a )=A 1 *y a +A 2

[0075] In the formula, y a is the fraction of all passengers who get off the bus during the alighting period; T a (y a ) is the time spent in the alighting period; A 1 , A 2 are the model parameters for the drop-off ...

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Abstract

The invention discloses a subway train delay adjustment method considering passenger flow influence and regenerative braking energy utilization, and the method comprises the steps: building a passenger flow prediction model based on an LSTM (Long Short Term Memory) in consideration of the constraint of a passenger flow factor on a dwell time adjustment upper limit after a train is delayed; in consideration of absorption and utilization of regenerative braking energy in the delay train adjustment process, a direct-current traction network energy consumption calculation model is established; a station dwell time model is established by simulating the getting-on and getting-off process of passengers; then, a subway train delay adjustment model is established in combination with the submodels, the minimum energy consumption variable quantity of a transformer substation in the adjustment process serves as an optimization target, and a solving process is designed for the model through a particle swarm optimization algorithm CDPSO based on center-discrete learning; and finally, performing simulation verification by using actual subway line data. The method is scientific, reliable and efficient, provides data and theoretical support for subway train delay adjustment, and has high use value and application prospect.

Description

technical field [0001] The invention belongs to the technical field of signal control in a subway operation system, and in particular relates to a subway train delay adjustment method considering the influence of passenger flow and the utilization of regenerative braking energy. Background technique [0002] With the rapid development of the subway operation system, its scale is constantly expanding, and the density of the subway network is also expanding. It has brought a lot of pressure to the operation department of the subway, and a small mistake may lead to the delay of the train. If the train is delayed and not adjusted in time, it will have a great impact on the subway operating system. Therefore, measures should be taken to adjust the operation of delayed trains so that they can resume on-time operation as soon as possible. [0003] When the delay of the train is relatively light, the ATS system of the subway train can adjust the arrival and departure time of the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/30G06N3/04G06N3/00G06F30/27G06F30/25
Inventor 胡文斌曹鑫许久奇耿路路张磊
Owner NANJING UNIV OF SCI & TECH
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