Breaker standby method and system considering aging failure model

A failure model, circuit breaker technology, applied in circuit breaker testing, instrumentation, data processing applications, etc., can solve the problems of ignoring the actual state of equipment, underestimating system risks and economic losses, etc.

Active Publication Date: 2016-07-20
SHENZHEN POWER SUPPLY BUREAU +1
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Problems solved by technology

[0004] However, the disadvantage of the existing circuit breaker backup method is that: the aging failure unavailability rate of the equipment is only calculated

Method used

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  • Breaker standby method and system considering aging failure model
  • Breaker standby method and system considering aging failure model
  • Breaker standby method and system considering aging failure model

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0060] Such as figure 1 As shown, in the embodiment of the present invention, a circuit breaker backup method considering the aging failure model is provided, and the method includes:

[0061] Step S1, obtaining the measured data of n circuit breakers respectively corresponding to d state monitoring parameters, and performing normalization processing on the obtained measured data of n circuit breakers respectively corresponding to d state monitoring parameters, and further according to The data after the normalization processing of the n circuit breakers is used to calculate the aging indices corresponding to the n circuit breakers respectively; wherein, n and d are both natural numbers;

[0062] The specific process is, step S11, obtaining the measured data of n...

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Abstract

The present invention provides a breaker standby method and system considering an aging failure model. The method comprises: performing normalization processing of actual measurement data of each state monitoring parameters of each breaker, and calculating the aging indexes of each breaker and corresponding aging failure rate of each breaker at each year in a plan time period; obtaining the generation probability of three states of each breaker at each year according to the average restoration and replacing time, repairable failure rate and the aging failure rate and the like of each breaker; calculating the probability of the load loss of all the breaker and the corresponding expect insufficient power supply according to the generation probability of three states of each breaker at each year; and according to the expect insufficient power supply, calculating the load loss reduction amount caused by different amounts of standby breakers, and outputting corresponding years and the number of the standby breakers after the load loss reduction amount is compared with the equivalent investment cost of each breaker. The breaker standby method and system considering an aging failure model are able to fully excavate the real state information of a device, accurately assess the device state and make up a reasonable standby plan to improve the reliability of the power grid operation and the economy of the device investment.

Description

technical field [0001] The invention relates to the technical field of power equipment asset management, in particular to a backup method and system for a circuit breaker considering an aging failure model. Background technique [0002] Circuit breaker is an overcurrent protection device widely used in power system, which plays an important role in the reliable operation of power system. When a circuit breaker has a repairable fault, it often takes a long time to restore the power supply. When the equipment is suddenly scrapped due to aging, it takes a longer time to repurchase and replace it. Both situations may cause serious power outages. Users and power companies cause economic losses. [0003] The use of spare circuit breakers can effectively shorten the time to restore power supply and reduce economic losses, but the purchase, storage and maintenance of spare circuit breakers also require a large amount of capital investment. Therefore, how to balance the relationshi...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G01R31/327
Inventor 陈法池任洲洋邓世聪章彬代溢
Owner SHENZHEN POWER SUPPLY BUREAU
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