A method for judging the opening and closing status of switches based on digital twins
A state judgment, opening and closing technology, applied in the field of switch opening and closing state judgment based on digital twins, can solve the problem of low accuracy of switch opening and closing actions
Active Publication Date: 2022-02-22
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology
[0003] At present, the technology for obtaining the opening and closing actions of switches has been developed to a certain extent, including image recognition, position sensors and other technologies have been applied to a certain extent, but in the existing technology, the accuracy of the acquired opening and closing actions of switches is not high
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[0038] 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 creative efforts fall within the protection scope of the present invention.
[0039] see figure 1 , is a schematic flowchart of a digital twin-based method for judging the opening and closing state of a switch provided by an embodiment of the present invention, and the method includes steps S1 to S5:
[0040] S1, determining the fixed parts and moving parts of the disconnector, and selecting action feature points, and constructing a three-dimensional coordinate model of the disconnector;
[0041] S2. Select the opening and closing feature poi...
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The invention discloses a method for judging the opening and closing state of a switch based on digital twins, by selecting the action feature point and the opening and closing feature point, and determining the reference position of each opening and closing feature point; obtaining the action feature of the isolating switch The motion parameters of the point during the opening and closing process of the switch and the coordinate positions of the opening and closing feature points at the time of opening and closing; through the pre-established digital twin model of the switch, the action judgment result of the switch state is output, and through each point The coordinate position of the closing feature point is compared with the reference position, and the judgment result of opening and closing of the switch state is output. The speed-time curve, displacement-time curve, spatial position path, and digital twin model construction are used to judge the switch action state through the action feature points of the switch, and the opening and closing state is judged through the opening and closing feature points, so as to realize the unification of the static and dynamic characteristics of the switch. Switch the digital twin model and conduct comprehensive analysis and judgment to realize more accurate judgment of the switch state.
Description
technical field [0001] The invention relates to the technical fields of electrical engineering and electrical data processing, in particular to a method for judging the opening and closing state of a switch based on a digital twin. Background technique [0002] As an emerging technology, digital twin has received great attention from the power system. Digital twin is a simulation process that makes full use of physical models, sensor updates, and operating history to integrate multi-disciplinary, multi-physical, multi-scale, and multi-probability simulation processes. The mapping is completed in , so as to reflect the whole life cycle process of the corresponding physical equipment. As the information power system puts forward new requirements for power equipment, the digital technology of power equipment is an important direction of future development. As an important protection device in the power system, the switch has put forward new reliability requirements for the rem...
Claims
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IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 张帅赵林杰李锐海王颂彭在兴孙帅姚聪伟宋坤宇
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD