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Method and system for optimizing energy-saving operation of subway train based on bio-geographical algorithm

A technology for operation optimization and trains, applied in computing, data processing applications, instruments, etc., can solve the problems of different energy consumption, different utilization rates of regenerative energy, etc., and achieve energy consumption reduction, fast optimization of characteristics, and optimization of speed operating curves Effect

Inactive Publication Date: 2018-02-16
HUNAN UNIV OF TECH
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Problems solved by technology

[0004] During the operation of a single train, due to the different operation modes of the trains, the energy consumption of the trains during operation is different; during the operation of multiple trains, due to the differences The utilization rate of regenerative energy generated by braking at different times is different

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  • Method and system for optimizing energy-saving operation of subway train based on bio-geographical algorithm
  • Method and system for optimizing energy-saving operation of subway train based on bio-geographical algorithm
  • Method and system for optimizing energy-saving operation of subway train based on bio-geographical algorithm

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specific Embodiment approach

[0051] The rail transit train operation optimization method based on biogeographical algorithm that the present invention proposes is described in detail as follows in conjunction with accompanying drawing and specific embodiment:

[0052] The invention adopts biogeographical algorithm optimization to ensure that the parameters are optimized under the normal operation of the subway train. Phase 1: The goal of train operation under selected operating conditions is to change the operating condition speed curve of the train when the train is running between stations under normal operating conditions. minimize. The objective function of the optimization model can be described as:

[0053]

[0054] In the formula, T i is the train running time required by the timetable for section i, in s; E(T i ) is the actual energy consumption of the train in kw h; S i is the actual distance traveled by trains between stations, in m; T s is the total running time of the train after optim...

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Abstract

In view of the energy consumption problem of the rail transit train operation, the present invention proposes a method and a system for optimizing the energy-saving operation of the subway train basedon the bio-geographical algorithm. The bio-geographic algorithm proposed by the present invention is optimized in two phases. In the first phase, the bio-geographical algorithm is used to comprehensively search the optimal energy-saving driving curve of the train, that is, under the premise of meeting the vehicle operation condition, running time, and stopping accuracy constraints, the optimal operation speed curve is obtained to reach the energy-saving effect; and the second phase is the optimization of the schedule running time, and the bio-geographical algorithm is used to optimize the stop time increment of each train at each site, optimize the original train operation schedule, and allow more trains to go in and out the site at the same time in the same power supply area to improve the utilization of renewable energy. The method and system provided by the present invention have better improvement on the multi-objective and high-dimension problems of trains, have obvious effects on the convergence speed and precision of the optimized parameters, and have good effects to the energy-saving operation of the trains in the actual routes and to the formulation and optimization of the schedule under the normal operation conditions of a given train.

Description

1 technical field [0001] The invention relates to an optimization method for energy-saving operation of rail transit trains, in particular to an optimization method for energy-saving operation of subway trains based on biogeographical algorithms. 2 background technology [0002] The traction substation converts the 33kV three-phase AC voltage into 1500V DC voltage through 24-pulse rectification to supply power for the train. The train uses the pantograph or the contact rail to obtain the traction voltage for inter-station traction operation. The number and position can be adjusted, and different adjustment schemes can obtain different speed running curves. [0003] During the operation of multiple trains, when the train brakes, the regenerative braking energy is generated and fed back to the grid or the third rail to provide energy for the traction trains in the same power supply area at the same time. Adjust the running time and stop time of the trains to obtain different ...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/30
CPCG06Q10/04G06Q50/40
Inventor 秦斌王欣梁枫
Owner HUNAN UNIV OF TECH
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