The invention provides an elevator fault diagnosis device and an elevator fault diagnosis method, which can detect the optimal replacement time of a power module corresponding to the use condition of an elevator. The elevator fault diagnosis device comprises a detection part, a fault sensing part and a protection action execution part. The detection unit detects an element voltage applied to a power module of the elevator, a current value supplied to the power module, and a chip temperature of the power module. The fault sensing part generates predicted values of the component voltage and the chip temperature under the condition that the current value is a specified current value before the elevator is operated, and detects the fault of the elevator on the basis of the difference between the predicted values and the measured values of the component voltage and the chip temperature under the condition that the current value is the specified current value after the elevator is started to operate. Deterioration diagnosis and remaining life estimation of the power module are performed. The protection action execution unit executes the protection action of the elevator on the basis of the degradation diagnosis of the power module and the estimation result of the remaining life.
提供电梯故障诊断装置及电梯故障诊断方法,能够检测与电梯的使用状况相应的功率模块的最佳的更换时期。实施方式的电梯故障诊断装置具备检测部、故障感测部和保护动作执行部。检测部检测施加到电梯的功率模块的元件电压、向功率模块供给的电流值以及功率模块的芯片温度。故障感测部在电梯运转前生成电流值为规定电流值的情况下的元件电压及芯片温度各自的预测值,基于预测值与电梯运转开始后电流值为规定电流值的情况下的元件电压及芯片温度各自的实测值的差值,执行功率模块的劣化诊断以及剩余寿命的推断。保护动作执行部基于功率模块的劣化诊断以及剩余寿命的推断的结果执行电梯的保护动作。
Elevator fault diagnosis device and elevator fault diagnosis method
电梯故障诊断装置及电梯故障诊断方法
2022-12-20
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen |