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Energies 2017, 10(11), 1865; doi:10.3390/en10111865

A Novel Short-Term Maintenance Strategy for Power Transmission and Transformation Equipment Based on Risk-Cost-Analysis

1
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China
2
Guangzhou Power Supply Company, Ltd., Guangzhou 510000, China
*
Author to whom correspondence should be addressed.
Received: 7 October 2017 / Revised: 6 November 2017 / Accepted: 11 November 2017 / Published: 14 November 2017
(This article belongs to the Section Electrical Power and Energy System)
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Abstract

Current studies on preventive condition-based maintenance of power transmission and transformation equipment mainly focus on mid-term or long-term maintenance, and cannot meet the requirements of short-term especially temporary maintenance. In order to solve the defects of the present preventive maintenance strategies, according to the engineering application and based on risk-cost analysis, a short-term maintenance strategy is proposed in this manuscript. For the equipment working in bad health condition, its active maintenance costs and operation risk costs are evaluated, respectively. Then the latest maintenance time is calculated in accordance with the principle that its operation risk costs are no higher than active maintenance costs. Utilizing the latest maintenance time, the best maintenance time is calculated by setting the maximum relative earnings of postponing maintenance as the target, which provides the operation staffs with comprehensive maintenance-decision support. In the end, different cases on the IEEE 24-bus system are simulated. The effectiveness and advantages of the proposed strategy are demonstrated by the simulation results. View Full-Text
Keywords: short-term maintenance strategy; risk cost analysis; power equipment maintenance; latest maintenance time; best maintenance time short-term maintenance strategy; risk cost analysis; power equipment maintenance; latest maintenance time; best maintenance time
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Yang, H.; Zhang, Z.; Yin, X.; Han, J.; Wang, Y.; Chen, G. A Novel Short-Term Maintenance Strategy for Power Transmission and Transformation Equipment Based on Risk-Cost-Analysis. Energies 2017, 10, 1865.

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