Circuit breaker type selection method and system, and medium

A technology for circuit breakers and circuit breaker failures, applied to emergency protection circuit devices, electrical components, power transmission AC networks, etc., can solve problems such as the lack of effective methods for circuit breaker selection, and achieve the goal of improving operational reliability and ensuring economy Effect

Active Publication Date: 2021-12-28
国网宁夏电力有限公司超高压公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a circuit breaker type selection method, medium and system to solve the problem that the prior art lacks an effective method for circuit breaker type selection

Method used

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  • Circuit breaker type selection method and system, and medium
  • Circuit breaker type selection method and system, and medium
  • Circuit breaker type selection method and system, and medium

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The embodiment of the invention discloses a type selection method of a circuit breaker. Specifically, such as figure 1 As shown, the circuit breaker selection method includes the following steps:

[0023] Step S1: Determine the threshold that the parameters of the circuit breaker need to meet.

[0024] Among them, the parameters of the circuit breaker include: the basic parameters of the rated working condition of the circuit breaker, the tole...

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Abstract

The invention discloses a circuit breaker type selection method and system, and a medium. The method comprises the following steps: determining threshold values needing to be met by parameters of the circuit breaker, wherein the parameters of the circuit breaker comprise basic parameters of rated working conditions of the circuit breaker, tolerance parameters of fault working conditions of the circuit breaker and operation performance parameters of the circuit breaker; determining the models of the circuit breakers meeting the thresholds of all the parameters as alternative models; determining the influence weight of each parameter on the cost; calculating the cost of the alternative model according to the influence weight of each parameter on the cost; and selecting the model of the circuit breaker with the lowest cost from the alternative models as the optimal model. Reasonable type selection of the circuit breaker is carried out in the aspects of type selection, parameter selection, economical efficiency analysis and the like aiming at the type selection of the circuit breaker in the rapid fault isolation of the extra-high-voltage direct-current system.

Description

technical field [0001] The invention relates to the technical field of circuit breaker type selection, in particular to a circuit breaker type selection method, medium and system. Background technique [0002] When the energy distribution center and the power load center do not coincide, electricity needs to be transmitted over long distances between the energy center and the load center. In this case, compared with AC transmission, there is no stability problem in HVDC transmission, and it has a series of advantages such as low line cost, low energy loss, and fast and simple control. Compared with traditional high-voltage direct current transmission, UHVDC transmission has significant advantages such as high transmission efficiency, strong reliability and stability, and low power transmission cost, and it can be used in large-capacity and long-distance transmission application scenarios. In summary, the construction of UHV DC transmission projects is of great significance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02J3/36
CPCH02H7/268H02J3/36Y02E60/60
Inventor 宋海龙史磊柴斌刘志远郝治国于晓军王亚武谢凡叶冬萌梁天宇杨松浩
Owner 国网宁夏电力有限公司超高压公司
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