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Reliability evaluation method and device of wide area protection system

A wide-area protection and reliability technology, applied in circuit devices, information technology support systems, AC network circuits, etc.

Active Publication Date: 2018-09-25
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0004] The present invention provides a reliability evaluation method for a wide-area protection system, which solves the problem that the reliability research results of the current wide-area protection system are limited to the reliability research of its communication network, and there is still no technology for the reliability analysis model of the overall system question

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  • Reliability evaluation method and device of wide area protection system
  • Reliability evaluation method and device of wide area protection system
  • Reliability evaluation method and device of wide area protection system

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Embodiment Construction

[0051] The embodiment of the present invention provides a reliability evaluation method for a wide-area protection system, which solves the problem that the reliability research results of the current wide-area protection system are limited to the reliability research of its communication network, and there is still no reliability analysis model for the overall system technical problems.

[0052] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following 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...

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Abstract

The invention provides a reliability evaluation method and device of a wide area protection system, and aims at solving the technical problem that reliability research of the wide-area protection system at present is limited to reliability research on the communication network and lack a reliability analysis model for the whole system. The method comprises that S1) an information acceptance rate dof a wide-area monitoring center in the wide area protection system is obtained; S2) according to the information acceptance rate d, the correct rate psf(d) of start of wide-area protection, the correct rate pfz(d) of fault area positioning and the correct rate pfc(d) of fault component identification are obtained; and S3) the correct rates psf(d), pfz(d) and pfc(d) are multiplied to obtain the correct rate pdmp of decision of the wide-area protection system.

Description

technical field [0001] The invention relates to the technical field of relay protection, in particular to a method for evaluating the reliability of a wide-area protection system. Background technique [0002] With the rapid growth of power demand, the increasingly expanded transmission and distribution network makes the power system network structure more complex and the operation mode more flexible, which makes the relay protection setting more difficult and even difficult to coordinate. Traditional relay protection devices based on local information Large-scale power outages caused by incorrect actions are not uncommon. In order to improve the performance of relay protection system, the concept of wide area protection system came into being. In recent years, with the rapid development of wide-area communication network technology and intelligent electronic equipment, the realization of wide-area protection systems is ready to go. However, unlike the traditional station-...

Claims

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20Y04S10/50
Inventor 何瑞文彭浩钟靖邓建华
Owner GUANGDONG UNIV OF TECH
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