公开(公告)号：US20240291357A1

公开(公告)日：2024-08-29

申请号：US18436609

申请日：2024-02-08

申请人： ABB Schweiz AG

发明人： Panagiotis Kakosimos ,  Kristian Rönnberg ,  Erik Nordlund ,  Zlatko Kolondjovski

IPC分类号： H02K15/00 ,  H02K11/25

CPC分类号： H02K15/00 ,  H02K11/25 ,  H02K2215/00

摘要： A method of monitoring thermal parameters of a thermal model of an electrical machine, the method including: a) updating thermal parameter values of the thermal model based on temperature measurements of the electrical machine, b) estimating future values of the thermal parameters based on the updated thermal parameter values by means of a degradation model, which takes past behaviour of the thermal parameters into account, and c) determining a future degradation and/or a remaining useful life of the electrical machine based on the future values.

公开(公告)号：US20240283386A1

公开(公告)日：2024-08-22

申请号：US18568273

申请日：2022-06-07

申请人： ABB Schweiz AG

发明人： Panagiotis Kakosimos ,  Olli Alkkiomäki ,  Zlatko Kolondjovski

IPC分类号： H02P29/64 ,  H02K9/02 ,  H02K11/25

CPC分类号： H02P29/64 ,  H02K9/02 ,  H02K11/25

摘要： A method of determining the cooling efficiency of an electric motor having a stator provided with stator windings, the method including: a) injecting a current into the stator windings to heat the stator windings, b) obtaining a temperature drop in the stator windings after the current injection in step a) has been terminated or the injected current has been decreased, c) comparing the temperature drop with a reference temperature drop, and d) concluding, based on the comparison, whether the cooling efficiency of the electric motor has deteriorated or not.

公开(公告)号：US20240213905A1

公开(公告)日：2024-06-27

申请号：US18566765

申请日：2022-06-02

申请人： ABB Schweiz AG

发明人： Panagiotis Kakosimos ,  Olli Alkkiomäki ,  Zlatko Kolondjovski

IPC分类号： H02P29/64 ,  H02P6/34 ,  H02P29/62

CPC分类号： H02P29/64 ,  H02P6/34 ,  H02P29/62

摘要： A method of updating a thermal model describing the thermal behaviour of an electric motor having a stator provided with stator windings, the method including: a) injecting a current into the stator windings to heat the stator windings, b) obtaining temperature measurements over time from each of a plurality of temperature sensors distributed in the electric motor while step a) is being performed and the stator windings are heating up, or after step a) has been terminated or the current has been decreased, and the electric motor is cooling down, and c) updating parameter values of the thermal model based on the temperature measurements.