Method for evaluating reliability of +/- 800kV current exchanging station main wire connection

A reliability and main wiring technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of not taking into account the maintenance status of components, and not conforming to the actual situation of component state conversion.

Inactive Publication Date: 2008-08-27
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0002] Due to the vigorous development of domestic condition-based maintenance technology, the condition-based maintenance state of components has become an indispensable state in component state transitions. However, in the classic component four-state model, the condition-based maintenance state of components is not considered, so it is considered that the classic component The four-state model is no longer in line with the actual situation of component state transitions

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  • Method for evaluating reliability of +/- 800kV current exchanging station main wire connection
  • Method for evaluating reliability of +/- 800kV current exchanging station main wire connection
  • Method for evaluating reliability of +/- 800kV current exchanging station main wire connection

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Embodiment Construction

[0040] The following describes in detail in conjunction with the embodiments and accompanying drawings.

[0041] (1) Establish a four-state model for improved components

[0042]In condition-based maintenance, when a certain equipment is overhauled according to the condition-based maintenance method, the state of the equipment is the basis of the condition-based maintenance method. Such as figure 2 , in the equipment condition maintenance mode, the equipment failure symptom point starts from point A. When the equipment status is abnormal, that is, when the fault symptom point B is detected, the staff will check the time from the fault symptom point B to the fault occurrence time D. Closely monitor the status of the equipment. When the status of the equipment reaches the status threshold point C, there will be two processing methods: 1. Shut down the equipment for maintenance; 2. Repair or replace it until the status of the equipment drops to the status point D. Through thes...

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Abstract

The invention provides a method for a reliability evaluation of a main wiring of a +-800kV convertor station, which is characterized in: establishing improved models of four states of elements; reliability models of relay protection and a secondary device in a process of evaluating the reliability of the main wiring; simplifying the prior complicated main wiring of the +-800kV convertor station by using partition of the elements; applying the improved models of the four states of the elements in each simplified partition; redefining abnormal states and maintenance states of the elements; combining and classifying a state maintenance state and a planned maintenance state of the elements into the maintenance state of the elements; determining conversion relationships between the states and acquiring parameters; simplifying a minimal path matrix searching method by a matrix multiplication to perform a minimal path searching to a directed network; enumerating states of various failures of the directed network by using an analysis method; and calculating reliable data of the network.

Description

Technical field: [0001] The invention relates to the technical field of power system reliability evaluation, in particular to a method for evaluating the reliability of a main wiring of a ±800kV converter station. Background technique: [0002] Due to the vigorous development of domestic condition-based maintenance technology, the condition-based maintenance state of components has become an indispensable state in component state transitions. However, in the classic component four-state model, the condition-based maintenance state of components is not considered, so it is considered that the classic component The four-state model is no longer in line with the actual situation of component state transitions. [0003] references: [0004] [1] Endrenyi J. Three State Models in Power System Reliability Evaluation. IEEE Trans. on PAS, 1971, 90: 1909-1916. [0005] [2] Ringlee RJ, Goode SD. On procedures for reliability evaluation of transmission systems. IEEE Trans. on Power Ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/00G06F17/50G06Q50/00H02H7/26
CPCY02E60/00
Inventor 束洪春胡泽江董俊刘可真孙士云唐岚刘志坚孙向飞杨毅常勇单节杉刘永泰
Owner KUNMING UNIV OF SCI & TECH
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