Condition monitoring method, device, equipment and medium of DC control and protection system
A DC control protection and control protection technology, which is applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of the safety, stability and reliability of the DC control and protection system, and the hidden dangers of the DC control and protection system.
Active Publication Date: 2021-02-12
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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However, when the control and protection signal is close to the corresponding monitoring threshold for a long time, according to the monitoring method of the prior art, no abnormal situation will be detected, but this situation will bring serious safety hazards to the DC control and protection system. It has a serious impact on the safety, stability and reliability of the DC control and protection system
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[0061] 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 only some, not all, embodiments of the present invention. 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.
[0062] The core of the embodiment of the present invention is to provide a state monitoring method for a DC control and protection system, which can improve the safety, stability and reliability of the DC control and protection system; another core of the present invention is to provide a DC control and protection system. The state monitoring device, equipment, and computer-readable storage medium all have the above-mentioned beneficial effects.
[0063] In or...
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This invention discloses a direct current control and protection system state monitoring method. The direct current control and protection system state monitoring method includes the steps that a monitoring formula is acquired according to target monitoring items in the direct current control and protection system; target control and protection signals corresponding to the target monitoring itemsare acquired according to a preset time period; the target control and protection signals are input into the monitoring formula, and the monitoring threshold value is calculated; and the monitoring threshold value is used for monitoring the running state of the target monitoring items, so that potential safety hazards caused by the target control protection signal being close to the monitoring threshold value for a long time can be avoided, and safety, stability and reliability of the direct current control protection system are relatively improved. The invention further discloses a direct current control and protection system state monitoring device and equipment and a computer readable storage medium which all have the same beneficial effects. The technical problems are solved.
Description
technical field [0001] The invention relates to the field of power grid control, in particular to a state monitoring method, device, equipment and computer-readable storage medium of a direct current control and protection system. Background technique [0002] With the rapid development of power grid technology, DC transmission projects have many types of primary and secondary equipment and tight coupling. The stable operation of the DC control and protection system depends on the reliable operation and effective connection of each link. Therefore, it is necessary to monitor the status of the DC control and protection system. . [0003] In the prior art, a widely used monitoring method is: preset a fixed monitoring threshold corresponding to the target monitoring item of the DC control and protection system, and then compare the obtained control and protection signal with the monitoring threshold to obtain the DC Control the operating state of the protection system. For ex...
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IPC IPC(8): G01R31/00G01R19/165
CPCG01R19/16528G01R31/00
Inventor 卢远宏郭琦李书勇郭海平
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD