An urban rail transit energy-saving time table and an operation curve optimization method

A technology for urban rail transit and operating curves, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of research on the improvement of energy utilization without regenerative braking feedback, large calculation errors, etc.

Active Publication Date: 2019-05-28
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

The optimization calculation method for the energy-saving running speed curve between multiple stations proposed in this paper has a large calculation error, and there is no research on the improvement of the energy utilization rate of regenerative braking feedback

Method used

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  • An urban rail transit energy-saving time table and an operation curve optimization method
  • An urban rail transit energy-saving time table and an operation curve optimization method
  • An urban rail transit energy-saving time table and an operation curve optimization method

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Embodiment Construction

[0085] The specific technical solutions of the present invention are described in conjunction with the accompanying drawings.

[0086] Such as figure 1 As shown, the optimization method includes steps:

[0087] S1: Obtain basic data of urban rail trains (vehicle weight, traction braking characteristics), basic data of urban rail lines (station kilometer mark, speed limit, slope, curve), basic data of urban rail operation schedule (inter-station operation time, departure interval, stop time);

[0088] S2: Aiming at the running process of a single train between a single station, with the goal of minimizing traction energy consumption between stations, by optimizing the running speed curve, the energy-saving running speed curve under different running times between each station is obtained;

[0089] S3: Aiming at the operation process of a single train between multiple stations, aiming to minimize the total traction energy consumption between multiple stations, according to the...

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Abstract

The invention relates to the technical field of urban traffic optimization, in particular to an urban rail transit energy-saving time table and an operation curve optimization method, and the method comprises the steps: S1, obtaining the basic data of an urban rail train, an urban rail line and an urban rail operation time table; S2, aiming at the operation process of a single train between singlestations, obtaining energy-saving operation speed curves of the single train between the stations at different operation times; S3, aiming at the operation process of the single train among a plurality of stations, obtaining an energy-saving interval operation time distribution scheme and a corresponding speed curve; S4, calculating the traction acceleration time length and the braking deceleration time length of each inter-station speed curve obtained in the step S3; S5, aiming at the operation process of multiple trains among multiple stations, obtaining an energy-saving departure intervaland stop time; S6, outputting an optimization result. The energy-saving operation speed curve is short in calculation time and small in error; traction energy consumption among multiple stations is reduced, and the regenerative braking feedback energy utilization rate is increased.

Description

technical field [0001] The field of the present invention relates to the technical field of urban traffic optimization, and more specifically, to an energy-saving timetable and an operation curve optimization method of urban rail transit. Background technique [0002] With the continuous expansion of the scale of cities in our country and the rapid increase of urban population, the travel demand of residents continues to grow. Urban rail transit has become the first choice for residents to travel because of its advantages of fast, punctual, safe and efficient. The demand for rail transit in large and medium-sized cities is also becoming stronger and stronger. Therefore, urban rail transit has developed rapidly in recent years. However, with the continuous expansion of the scale of urban rail operations, the increasing operating costs have caused certain economic pressure on the operating units. Among them, the power consumption expenditure of the urban rail system accounts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 孙鹏飞金波王青元陈默王晓文郭金松
Owner SOUTHWEST JIAOTONG UNIV
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