A full-localization relay protection core component redundancy quantity determination method
A relay protection and determination method technology, applied in the direction of electrical digital data processing, instruments, data processing applications, etc., can solve the problems of performance degradation of core components, reliability degradation of relay protection devices, etc., and achieve high-efficiency redundant quantity, Important theoretical significance and effect of engineering value
Pending Publication Date: 2021-07-13
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology
After the replacement of domestic chips, the performance of core components may decline, which will lead to a decrease in the reliability of relay protection devices. It is necessary to improve the reliability of relay protection devices through redundancy of core components.
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[0016] 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 described embodiments are only some of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present invention.
[0017] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flowchart of a method for determining the redundant quantity of nationally produced relay protection core components provided by an embodiment of the present invention, and the method includes:
[0018] Step 1. First, determine a suitable redundancy method from different redundancy met...
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The invention discloses a full-localization relay protection core component redundancy quantity determination method. The method comprises the following steps: firstly, determining a suitable redundancy mode from different redundancy modes; according to the failure rate data of all the core components, solving the failure rates of all the core components under different redundancy numbers; according to the series reliability model of the relay protection device, solving the failure rate of the relay protection device after core components are combined, and selecting a redundancy mode with the highest cost under the condition that the failure rate requirement is not met; and calculating the cost of different core component combinations, increasing the number of the core components according to the sequence of the cost from low to high until the failure rate requirement of the relay protection device is met, and determining the redundancy number of each core component when the failure rate requirement of the relay protection device is met and the cost is minimum. According to the method, the redundancy number of each core component can be efficiently determined, and the method has important theoretical significance and engineering value.
Description
technical field [0001] The invention relates to the technical field of electric power system relay protection, in particular to a method for determining the redundant quantity of core components of nationally produced relay protection. Background technique [0002] With the rapid development of the power system, the scale of the power grid is growing day by day, and the network structure of the power system is more complex. It is particularly important to improve the security level of the power system. Relay protection is an important device to ensure the safe and reliable operation of the power system, an important device related to the safe and stable operation of the power grid, and an indispensable and important part of the power system. Nowadays, almost all the core components that make up various relay protection devices rely on imports, and there are huge safety hazards, which makes it more and more important whether domestic components can meet the reliability requir...
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IPC IPC(8): G06F30/20G06Q50/06G06F119/02
CPCG06F30/20G06Q50/06G06F2119/02
Inventor 薛安成刘晓博刘中硕王永杰陈晓帆陈乾田铭威陶畅欧阳明浩景子洋
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)