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A method and system for event start-up verification based on changes in operation mode

An operation mode and calibration technology, which is applied to electrical components, emergency protection devices with automatic disconnection, instruments, etc., can solve the problems of long time for periodic calibration settings, low calculation efficiency, waste of storage space, etc., to avoid waste , the effect of improving computational efficiency

Active Publication Date: 2019-09-24
GUIZHOU POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Under the current conditions, there are the following disadvantages: when the scale of the power grid is large, the periodical calculation needs to check the relay protection fixed value of the whole network, which will lead to low calculation efficiency; Significance of online verification; when there is no change in the operation mode of the QS files obtained twice before and after, the verification results for different QS files will be consistent, the verification will be meaningless, and the storage space will be wasted; The check results of the electric protection fixed value cannot focus on the impact of the change of the operation mode on the fixed value

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  • A method and system for event start-up verification based on changes in operation mode
  • A method and system for event start-up verification based on changes in operation mode

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Embodiment Construction

[0038] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0039] The basic idea of ​​the event start check based on the change of the operation mode of the present invention is to judge the event start condition of the change of the operation mode, automatically trigger the check, and when the online check checks the fixed value, the range affected by the change of the operation mode is automatically obtained, and then the The search range is checked by the relay protection setting value, and compared with the previous check result, and according to the result, it is judged whether an alarm is required and a suggestion for setting value adjustment is provided. Specifically, an event-based verification method based on a change...

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Abstract

The invention discloses an operation mode change-based event start checking method and system. Checking can be automatically triggered; when a setting value is checked by adopting an online checking method, the influence range of an operation mode change is automatically obtained, and then a relay protection setting value is checked within the search range and compared with a previous check result. According to the operation mode change-based event start checking method and system, the computation efficiency is improved, unnecessary checking is reduced, meanwhile, the storage space is reducedand the influence of the change on the setting value is highlighted.

Description

technical field [0001] The invention relates to the field of setting and calculation of electric power system relay protection, in particular to an event start checking method based on the change of operation mode. Background technique [0002] Relay protection is one of the most important secondary equipment in the power system, and it is the guarantee for the safe operation of the power system. Whether the relay protection device can meet the "four characteristics" requirements proposed by the power grid depends largely on whether the relay protection setting is reasonable. [0003] At present, the relay protection setting values ​​are obtained offline and remain unchanged during system operation. However, the operation mode of the power system is constantly changing in actual operation. When the power grid is in some special operating states due to equipment maintenance, new project commissioning and power grid accidents, some fixed values ​​may not meet the requirements...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/00H02H3/00G06Q10/06G06Q50/06
Inventor 熊学海万春竹王永刚王宇恩白加林赵凌吕晓亚齐雪雯
Owner GUIZHOU POWER GRID CO LTD
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