Optimization of a GIS sensor layout based on global detection probability distribution evaluation

Abstract Gas‐insulated switchgear (GIS) is an important power equipment. The implementation of health monitoring is limited by the number of sensors, and the global detection results of the system should be highly credible to ensure the reliability of the power supply system. To solve this problem,...

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Main Authors: Peijiang Li, Ting You
Format: Article
Language:English
Published: Wiley 2021-12-01
Series:Cognitive Computation and Systems
Subjects:
Online Access:https://doi.org/10.1049/ccs2.12033
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author Peijiang Li
Ting You
author_facet Peijiang Li
Ting You
author_sort Peijiang Li
collection DOAJ
description Abstract Gas‐insulated switchgear (GIS) is an important power equipment. The implementation of health monitoring is limited by the number of sensors, and the global detection results of the system should be highly credible to ensure the reliability of the power supply system. To solve this problem, this study proposes a sensor layout optimization method based on global detection probability performance evaluation. Starting from the cost function, the GIS discharge detection problem is transformed into a Bayesian risk decision problem, the binary state of ‘with discharge’ and ‘without discharge’ is adopted to simplify the cost function and reduce the computing workload, and the objective function representing the global detection performance of the system is obtained. The solution of layout optimization is realized by the improved genetic algorithm. 3‐sensor, 4‐sensor and 6‐sensor layouts, which are digitally simulated at different detection rates, and then the distribution diagram of the global detection rate is obtained. On this basis, the feasibility and effectiveness of the optimization method are verified through an experiment. The results show that, compared with other sensor layout optimization methods, this optimization method can obtain the correct probability distribution of the detection rate globally and realize the graphical quantization of the detection performance distribution of the system so as to ensure the system performance.
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spelling doaj.art-44170e8091f34ca5bc8b90b6170f9c1f2022-12-22T01:27:20ZengWileyCognitive Computation and Systems2517-75672021-12-013434235010.1049/ccs2.12033Optimization of a GIS sensor layout based on global detection probability distribution evaluationPeijiang Li0Ting You1School of Information Engineering Quzhou College of Technology Quzhou ChinaSchool of Electrical and Information Engineering Quzhou College Quzhou ChinaAbstract Gas‐insulated switchgear (GIS) is an important power equipment. The implementation of health monitoring is limited by the number of sensors, and the global detection results of the system should be highly credible to ensure the reliability of the power supply system. To solve this problem, this study proposes a sensor layout optimization method based on global detection probability performance evaluation. Starting from the cost function, the GIS discharge detection problem is transformed into a Bayesian risk decision problem, the binary state of ‘with discharge’ and ‘without discharge’ is adopted to simplify the cost function and reduce the computing workload, and the objective function representing the global detection performance of the system is obtained. The solution of layout optimization is realized by the improved genetic algorithm. 3‐sensor, 4‐sensor and 6‐sensor layouts, which are digitally simulated at different detection rates, and then the distribution diagram of the global detection rate is obtained. On this basis, the feasibility and effectiveness of the optimization method are verified through an experiment. The results show that, compared with other sensor layout optimization methods, this optimization method can obtain the correct probability distribution of the detection rate globally and realize the graphical quantization of the detection performance distribution of the system so as to ensure the system performance.https://doi.org/10.1049/ccs2.12033decision theorygenetic algorithmspower engineering computingsensor fusionprobabilityoptimisation
spellingShingle Peijiang Li
Ting You
Optimization of a GIS sensor layout based on global detection probability distribution evaluation
Cognitive Computation and Systems
decision theory
genetic algorithms
power engineering computing
sensor fusion
probability
optimisation
title Optimization of a GIS sensor layout based on global detection probability distribution evaluation
title_full Optimization of a GIS sensor layout based on global detection probability distribution evaluation
title_fullStr Optimization of a GIS sensor layout based on global detection probability distribution evaluation
title_full_unstemmed Optimization of a GIS sensor layout based on global detection probability distribution evaluation
title_short Optimization of a GIS sensor layout based on global detection probability distribution evaluation
title_sort optimization of a gis sensor layout based on global detection probability distribution evaluation
topic decision theory
genetic algorithms
power engineering computing
sensor fusion
probability
optimisation
url https://doi.org/10.1049/ccs2.12033
work_keys_str_mv AT peijiangli optimizationofagissensorlayoutbasedonglobaldetectionprobabilitydistributionevaluation
AT tingyou optimizationofagissensorlayoutbasedonglobaldetectionprobabilitydistributionevaluation