Abstract
Considering the existence of many actual influential factors of a high voltage switch cabinet in the coal mine, the paper proposes a hierarchical fuzzy comprehensive evaluation algorithm to assess the running state of the 6 kV (10 kV) power vacuum switch cabinet better and improve operational safety and reliability of the power supply system. The algorithm can realize the state evaluation of bus bars, vacuum circuit breakers, electrical cables, other components, and the switch cabinet by the bottom-up approach. The running state evaluation index system and mathematical model of the switchgear are introduced particularly. According to the different forms of data information, this algorithm comprehensively evaluates the running state of the high voltage switchgear by using the online running data, test data, equipment information, and historical data records of the distribution cabinet. The actual operation states and test data of a handcart switch cabinet are taken as examples to prove the effectiveness of the algorithm.
Highlights
In order to provide a basis for the further maintenance and timely repair defects, comprehensive evaluation of the 6 kV (10 kV) high voltage switch cabinet and downhole cable’s health state on the ground of coal mine will be developed through continuous tracking and managing based on a comprehensive analysis of a variety of online monitoring and off-line data
The first row represents the degree of the relative electric wear belonging to V1, V2, V3, and V4, respectively
This paper proposes a method for evaluating the running states of switch cabinet based on fuzzy comprehensive evaluation algorithm
Summary
In order to provide a basis for the further maintenance and timely repair defects, comprehensive evaluation of the 6 kV (10 kV) high voltage switch cabinet and downhole cable’s health state on the ground of coal mine will be developed through continuous tracking and managing based on a comprehensive analysis of a variety of online monitoring and off-line data In this way, equipment accidents can be prevented effectively; the safety and reliability of coal mine power supply system can be improved to some extent [1]. According to the different forms of data information, combining with equipment grading method and relevant parameters, this algorithm converts the non-data information into data information to evaluate comprehensively the running state of the high voltage switch cabinet.
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