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Power system relay protection system based on wireless transmission

A relay protection and power system technology, applied in the field of power system relay protection, can solve the problems of large investment, large amount of cables, increased construction period and labor costs, etc., to prevent protection malfunction and blocking, and save construction materials , the effect of flexible application form

Inactive Publication Date: 2013-02-27
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wiring of secondary equipment related to substation relay protection is complicated, the cable consumption is large, and the investment is large
The main wiring includes CT, PT measurement circuit, switch state, tripping circuit and interlocking circuit between protection devices. A large number of secondary wiring also increases the construction period and labor costs of design, installation, commissioning, operation and maintenance, and also increases The complexity and risk of failure of the secondary system wiring

Method used

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  • Power system relay protection system based on wireless transmission
  • Power system relay protection system based on wireless transmission
  • Power system relay protection system based on wireless transmission

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Embodiment Construction

[0016] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0017] Such as figure 1 Shown is a schematic structural diagram of a power system relay protection device based on wireless transmission disclosed by the present invention. The protection system includes an industrial wireless switch, a wireless synchronous clock source, a locally installed wireless merging unit device, a wireless intelligent terminal device and a wireless protection device.

[0018] The industrial wireless switch is installed in the substation to realize the communication between the wireless merging unit device, the wireless intelligent terminal and the wireless protection device;

[0019] The wireless synchronization clock source is connected to the industrial wireless switch to realize the clock synchronization of each wireless merging unit device and protection device;

[0020] The wireless merging unit device...

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Abstract

The invention provides a power system relay protection system based on wireless transmission. The power system relay protection system based on the wireless transmission comprises the following components: (1) an industrial wireless switch; (2) a wireless synchronization clock device; (3) a wireless merging unit device; (4) a wireless intelligent terminal device; and (5) a wireless protection device, wherein the wireless relay protection device comprises a wireless plugin, a management board plugin, a protection plugin, a power plugin and the like. The power system relay protection system based on the wireless transmission, provided by the invention, can effectively reduce building materials such as optical cables, copper cables and the like which are used during secondary wiring in a substation, shortens the construction period, saves the construction investment, reduces a secondary return circuit, prevents locking and misoperation of protection caused by the secondary return circuit problem improves the reliability of the protection system, is convenient to install and debug, and can reduce the workload of maintenance personnel.

Description

technical field [0001] The invention belongs to the field of relay protection of power systems, and in particular relates to a method and system for realizing relay protection by using wireless transmission. Background technique [0002] Industrial wireless technology is another hot technology in the field of industrial control after fieldbus. It is a revolutionary technology that reduces the cost of industrial measurement and control systems and improves the application range of industrial measurement and control systems. It is also a new growth point for industrial automation products in the next few years. With the development of technology, industrial wireless technology has gradually overcome difficult problems such as anti-interference, real-time communication, and energy saving, and has been widely used in transportation, robotics and other fields. At present, the application in the power industry is more than that of measurement and detection, and has not been applie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/22H02J13/00
CPCY04S40/126Y02B90/2653Y02B90/20
Inventor 李明周泽昕杜丁香王兴国李岩军
Owner CHINA ELECTRIC POWER RES INST
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