Catenary intelligent ice melting system

A catenary and ice-melting technology, applied in cable installation, overhead installation, electrical components, etc., can solve problems such as harmonic pollution of AC power grid, improve system power factor, improve power supply quality, and realize the effect of one machine with multiple functions

Active Publication Date: 2020-05-12
BEIJING QIANSIYU ELECTRIC
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  • Summary
  • 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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  • Catenary intelligent ice melting system
  • Catenary intelligent ice melting system
  • Catenary intelligent ice melting system

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific 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 are, for example, capable of practice in sequences other than...

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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 urban rail transit traction power supply, in particular to an intelligent catenary 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 top of the rail to provide electric energy for the train. Catenary icing refers to the phenomenon that water droplets condense on the contact line after encountering cold air, causing a large area of ​​contact line to be wrapped in ice. [0003] At present, the deicing methods of urban rail transit catenary mainly include artificial deicing method, catenary thermal sliding method and thermal ice melting method. Among them, the manual deicing method is time-consuming and laborious, with low deicing efficiency and certain risks. The catenary thermal sliding method has certain damage to the catenary, and it cannot completely remove the ice. The wor...

Claims

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Application Information

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Patent Type & Authority Patents(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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