METHOD FOR ASSESSING REMAINING LIFE OF ROTATING ELECTRICAL MACHINE AND DEVICE FOR ASSESSING REMAINING LIFE OF ROTATING ELECTRICAL MACHINE

• Main Authors: HAYASHI KAZUO, FUJITA HIROSHIGE, MIKI SHINSUKE, NAGAYA WATARU, OTANI TADAO
• Format: Patent
• Language: Chinese; English
• Published: 22.06.2021
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

This device for assessing the remaining life of a rotating electrical machine is provided with: a data acquisition unit which acquires operation record data and electrical data regarding a rotating electrical machine to be subjected to assessment; an index value calculation unit which calculates first to third index values on the basis of the acquired data and which calculates, as a fourth index value, an estimate value of remaining withstand voltage of the rotating electric machine by performing analysis on individual pieces of the electrical data using an MT method; and an insulation deterioration estimation unit which makes an assessment about the remaining life of the rotating electrical machine by estimating the remaining life of the rotating electrical machine using the four index values, i.e., the first to fourth index values. 旋转电机的剩余寿命诊断装置具备：数据获取部，获取与诊断对象即旋转电机相关的运行实际数据以及电气数据；指标值计算部，基于获取的数据计算第1指标值至第3指标值，并且通过使用MT法对电气数据的各个数据进行分析，来计算旋转电机的残余耐电压值的推定值作为第4指标值；以及绝缘劣化推定部，通过使用第1指标值至第4指标值这4个指标值来推定旋转电机的剩余寿命，从而对旋转电