Attitude sensor-based isolating switch opening and closing position detection and double confirmation detection method and system and medium

Abstract

The invention discloses an attitude sensor-based isolating switch opening and closing position detection and double confirmation detection method and system and a medium. The double confirmation method of the invention includes the following steps of after an isolating switch is opened / closed, obtaining the opening and closing position of the isolating switch through opening / closing auxiliary contacts to form a first criterion; recording the opening / closing actual angle of the isolating switch in the opening / closing process by using an attitude sensor, comparing the opening / closing actual angle with a preset opening / closing reference angle, and determining the opening and closing position of the isolating switch to form a second criterion; and performing double confirmation according to the first criterion and the second criterion to determine the opening and closing position of the isolating switch. According to the scheme of the invention, after the operation of the isolating switch,operation and maintenance personnel can accurately determine the opening and closing state of the isolating switch, the accuracy of equipment state discrimination can be greatly improved, the openingand closing state of an intelligent isolating switch can be reliably and effectively determined, and the security guarantee can be provided for realizing one-key sequential control operation of statetransition of substation isolating switches.

Description

Technical field [0001] The invention belongs to the technical field of intelligent power equipment monitoring, and specifically relates to a method, a system and a medium for detecting the opening and closing positions of an isolating switch based on a gesture sensor and double confirmation. Background technique [0002] With the rapid development of global smart grid strategic technology, the construction of smart substations and the intelligent transformation of substations have become an important direction for the development of the power industry. As a key component of smart grids and smart substations, smart high-voltage switchgear is the functional equipment for information collection, transmission, processing, and communication in smart substation systems. The reliability and intelligence of its closing is one of the key technologies for smart substation construction. One. [0003] At present, there are a lot of technical researches on the monitoring of the opening and clo...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many technical researches on the opening and closing position monitoring of intelligent isolating switches at home and abroad, including image recognition method, optical induction method, method based on auxiliary contact principle, etc.; the advantage of image recognition method is that the identification process is intuitive and the degree of automation is high; The disadvantage is that the recognition accuracy is low, it is greatly affected by the weather, and the cost is high; the optical induction method is simple to measure, is not interfered by strong electromagnetic fields, and has strong anti-interference ability, but its scope of application is limited, and it is easily affected by rain, snow, humidity, and visibility. The reliability and accuracy are low; the method of relying on the auxiliary contact of the isolating switch is easy to cause misjudgment of the opening and closing position due to the long distance between the auxiliary contact and the contact.

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