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Substation telecontrol communication method after IEC61970 interface expansion

A substation and communication technology, which is applied in the field of substation telecontrol communication technology, can solve problems such as the lack of network adaptability of telecontrol communication technology, and achieve the effects of improving application integration capabilities, reducing construction costs, and simplifying deployment structures

Inactive Publication Date: 2015-06-10
ASAT CHINA TECH +1
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Traditional telecontrol communication protocols (such as IEC60870-5) are oriented to points and tag names (Tag). Due to the influence of network transmission capabilities, in order to increase the information carrying capacity of network frames, the protocol format is encoded strictly according to bits, in order to reduce the number of information on both sides. For the difficulty of identifying, receiving and processing protocol packets, these protocols need to make some special regulations, such as specifying whether the transmission method is synchronous transmission or asynchronous transmission, frame synchronization word, anti-interference measures, bit synchronization method, frame structure , the information transmission process; it is also necessary to specify the specific steps to realize the information transmission of data collection, monitoring and control, so the traditional telecontrol communication technology is relatively lacking in network adaptability
Moreover, since the information transmitted based on the traditional telecontrol communication technology and the information in the control center database are defined separately, a certain information of the substation’s moving equipment needs to have a corresponding relationship with the control center’s database in advance, so as to correctly reflect the status of the field equipment , which leads to a series of protocol conversion and semantic analysis problems in the process of data collection, transmission, processing and application

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  • Substation telecontrol communication method after IEC61970 interface expansion
  • Substation telecontrol communication method after IEC61970 interface expansion
  • Substation telecontrol communication method after IEC61970 interface expansion

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Embodiment Construction

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0034] The first embodiment of the present invention relates to a

[0035] 1. Optimization scheme for real-time data transmission between control center and substation

[0036] In order to achieve the purpose of real-time data transmission between the control center and the substation, it is necessary to properly optimize the HSDA interface and GES interface of IEC61970CIS. This solution is mainly optimized for the real-time data and event data structure of the read-write and subscription interfaces of HSDA and GES.

[0037] Simplified GES subscription interface data structure:

[0038] The data structure definition of the original GES subscription interface is as follows:

[0039]

[0040] The optimized interface is defined as fol...

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Abstract

The invention discloses a substation telecontrol communication method after IEC61970 interface expansion. The method is characterized in that telecontrol communication between a substation and a control center is achieved by expanding IEC61970CIS interface specifications, and protocol conversion which wastes manpower and money during information transmission can be reduced effectively; the CIS open interface and distributed architecture features are applied to substation system construction, and the application integration capability of a substation automation system is increased favorably; under the current trend that hardware equipment performance is increased constantly and network transmission capability is increased constantly, hardware resources can be effectively utilized, power automation system deployment structure is simplified, overall system construction cost is lowered, and the method conforms to the current control center and substation automation system distributed and information integration development trend.

Description

technical field [0001] The invention relates to the field of electric power automation, in particular to a substation telecontrol communication technology after extending the IEC61970 interface. Background technique [0002] Traditional telecontrol communication protocols (such as IEC60870-5) are oriented to points and tag names (Tag). Due to the influence of network transmission capabilities, in order to increase the information carrying capacity of network frames, the protocol format is encoded strictly according to bits, in order to reduce the number of information on both sides. For the difficulty of identifying, receiving and processing protocol packets, these protocols need to make some special regulations, such as specifying whether the transmission method is synchronous transmission or asynchronous transmission, frame synchronization word, anti-interference measures, bit synchronization method, frame structure , the information transmission process; it is also necess...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 俞高宇张晓华郑翔叶海明汪红利
Owner ASAT CHINA TECH
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