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Automatic tuning method for energy storage system for railway trains

A technology of automatic tuning and energy storage system, which can be applied to railway vehicles, DC circuits to reduce harmonics/ripples, motor vehicles, etc., can solve problems such as the influence of DC overhead line power supply, and achieve the effect of increasing energy efficiency

Inactive Publication Date: 2013-06-19
WOOJIN IND SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the 22.9kV power supply is supplied with a fluctuation range of 3%, which will affect the DC overhead line power supply of the substation

Method used

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  • Automatic tuning method for energy storage system for railway trains
  • Automatic tuning method for energy storage system for railway trains
  • Automatic tuning method for energy storage system for railway trains

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Embodiment Construction

[0038] Hereinafter, the present invention will be described in detail with reference to the drawings.

[0039] image 3 is a circuit diagram showing the structure of an energy storage device for a railway train according to an embodiment of the present invention.

[0040] refer to image 3 According to an embodiment of the present invention, the automatic tuning method of the energy storage system based on the railway train is automatically performed according to the voltage fluctuation of the substation, the voltage fluctuation due to the operation mode, and the voltage fluctuation of the overhead line according to the time. Optimal tracking and thus increased energy storage efficiency for an automated tuning method for railway train-based energy storage systems.

[0041] Hereinafter, an electric double layer capacitor (EDLC; electric dual layer capacitor) is referred to as an EDLC.

[0042] According to the structure of the preferred embodiment of the present invention, the...

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Abstract

An automatic tuning method based on an energy storage system for railway trains is provided. In the method, optimal tracking of changes in overhead line voltage, which varies with time and according to substation voltage variation and a train operation pattern, is automatically performed to maximize energy storage efficiency. It is possible to achieve optimal energy saving effects using a bidirectional DC / DC converter which can efficiently use regenerative energy of DC urban railways and can accomplish stabilization of overhead line voltage. In addition, energy efficiency is maximized by charging and discharging energy while tracking unstable power, which is generated using renewable energy such as wind and solar energy, in real time by applying an automatic tuning algorithm to an energy storage system which is applied to a smart grid or a micro grid that uses renewable energy as a primary energy source.

Description

technical field [0001] The present invention relates to an automatic tuning method of an energy storage system based on a railway train, and more specifically, relates to an overhead line voltage generated by a voltage variation according to a substation, a voltage variation due to an operation mode, a voltage variation according to time Automatically perform optimal tracking to increase the efficiency of energy storage, which is an automatic tuning method for energy storage systems based on railway trains. Background technique [0002] As we all know, due to climate change, the whole world is in the crisis of environmental destruction, high oil prices, and then facing the crisis of resource depletion. With the depletion of oil energy and environmental pollution, the Kyoto Protocol to prevent global warming Since the entry into force, the development of new and renewable energy to suppress carbon dioxide emissions has become a top priority. [0003] In this case, the direct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/02H02J7/00
CPCB60L9/005B60L2210/10H02J3/28B60L2200/26H02J2310/40Y02T10/72Y02E60/10B60M3/02B60L9/18H02J7/04H01M10/44
Inventor 李恩圭金泰奭权景敏
Owner WOOJIN IND SYST
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