Reliability research method of tractive power supply system

• Main Authors: JIANG FENGLING, LIU XIANQUN
• Format: Patent
• Language: Chinese; English
• Published: 27.03.2020
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a reliability research method of a tractive power supply system. The reliability research method includes the steps: establishing a grey prediction model of the tractive powersupply system by using a grey theory; carrying out medium-term and long-term predictionon the failure rate of each component device in the tractive power supply system; carrying out reliability analysis of the equipment by utilizing Weibull distribution; through an intelligent fitting method based on a chaotic particle swarm optimization algorithm, obtaining an optimal parameter estimation methodof the characteristic life alpha and the shape parameter beta, and performing reliability modeling on each device of the tractive power supply system through a piecewise polynomial estimation method according to the average value and the standard deviation of the device life of each device of the tractive power supply system to obtain an optimal parameter estimation method of the characteristic life alpha and the shape par