Overhead contact system intelligent ice melting system

A catenary and ice melting technology, applied in the installation of electrical components, overhead lines, cables, etc., can solve problems such as harmonic pollution of AC power grid, and achieve the effect of improving system power factor, improving power supply quality, and realizing reuse.

Active Publication Date: 2017-09-29
BEIJING QIANSIYU ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an intelligent ice-melting system for urban rail transit catenary to solve the problem of harmonic pollution caused by large-capacity DC adjustable power supply to AC power grid

Method used

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  • Overhead contact system intelligent ice melting system
  • Overhead contact system intelligent ice melting system
  • Overhead contact system intelligent ice melting system

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Embodiment Construction

[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to Describe a particular order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can, fo...

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Abstract

The invention provides an overhead contact system intelligent ice melting system. The overhead contact system intelligent ice melting system comprises an ice melting control device and N converters; one end of each converter is connected with a direct current overhead contact system, and the other end of each converter is connected with an alternating current network; the converters are used for entering rectification working conditions according to a first control signal and entering inversion working conditions according to a second control signal; the ice melting control device is used for obtaining the first control signal and the second control signal and sending the first control signal and the second control signal to the converter corresponding to an section needing ice melting, wherein the first control signal and the second control signal both include ice melting current values. Thus, energy circulation is formed among the converters in the rectification working conditions, the section needing ice melting of the direct current overhead contact system and the converters in the inversion working conditions and Between corresponding sections of the alternating current network, and current of the section needing ice melting of the direct current overhead contact system is not less than the ice melting current values.

Description

technical field [0001] The invention relates to the field of traction power supply for urban rail transit, in particular to a catenary intelligent ice melting system. Background technique [0002] The catenary is an important part of the traction power supply system of urban rail transit. It is a transmission line suspended along the rails to provide electric power for trains. Catenary icing refers to the phenomenon that water droplets condense on the contact line after encountering cold air, causing a large area of ​​the contact line to be covered by ice. [0003] At present, the deicing methods of urban rail transit catenary mainly include manual deicing method, catenary thermal sliding method and thermal ice melting method. Among them, the manual de-icing method is time-consuming and labor-intensive, has low de-icing efficiency, and has certain risks. The catenary hot-slip method has certain damage to the catenary, and cannot completely remove the ice. The working prin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M1/28H02G7/16
CPCB60M1/28H02G7/16
Inventor 张钢胡志强刘建杨利强徐树亮刘志刚牟富强刘健魏路漆良波吕海臣邱瑞昌杜军路亮陈杰张馨予孙星亮
Owner BEIJING QIANSIYU ELECTRIC
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