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公开(公告)号：WO2022135699A1
公开(公告)日：2022-06-30
申请号：PCT/EP2020/087659
申请日：2020-12-22
Applicant: ABB SCHWEIZ AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , AALTONEN, Teija
IPC: G01N33/28
Abstract: A method of detecting degradation of a lubricant in a bearing of and electrical machine, comprising: a) obtaining a first outer bearing ring temperature, b) changing the speed of the electrical machine, c) obtaining a second outer bearing ring temperature when the speed has changed, d) determining a thermal response value of the outer bearing ring based on the first outer bearing ring temperature and the second outer bearing ring temperature, e) comparing the thermal response value with a reference thermal response value for the same speed change as in step b), and f) in case the thermal response value differs from the reference thermal response value, concluding that the performance of the lubricant has degraded.
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公开(公告)号：WO2022263219A1
公开(公告)日：2022-12-22
申请号：PCT/EP2022/065314
申请日：2022-06-07
Applicant: ABB SCHWEIZ AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , KOLONDJOVSKI, Zlatko
IPC: H02P29/024 , H02P29/60 , H02P29/62 , H02P29/64
Abstract: A method of determining the cooling efficiency of an electric motor having a stator provided with stator windings, the method comprising: 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.
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公开(公告)号：WO2022263199A1
公开(公告)日：2022-12-22
申请号：PCT/EP2022/065104
申请日：2022-06-02
Applicant: ABB SCHWEIZ AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , KOLONDJOVSKI, Zlatko
Abstract: A method of updating a thermal model describing the thermal behaviour of an electric motor having a stator provided with stator windings, the method comprising: 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.
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Patent Agency Ranking
公开(公告)号：EP3740675A1
公开(公告)日：2020-11-25
申请号：EP18901217.2
申请日：2018-01-18
Applicant: ABB Schweiz AG
Inventor： YU, Rongrong , CHEN, Niya , XIE, Hailian , RUAN, Jiayang , ALKKIOMAKI, Olli
IPC: F03D7/04
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公开(公告)号：EP4106187A1
公开(公告)日：2022-12-21
申请号：EP21179269.2
申请日：2021-06-14
Applicant: ABB Schweiz AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , KOLONDJOVSKI, Zlatko
Abstract: A method of updating a thermal model describing the thermal behaviour of an electric motor having a stator provided with stator windings, the method comprising: 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.
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公开(公告)号：EP4296641A1
公开(公告)日：2023-12-27
申请号：EP22179879.6
申请日：2022-06-20
Applicant: ABB SCHWEIZ AG
Inventor： KLOEPPER, Benjamin , ALKKIOMAKI, Olli , KOTRIWALA, Arzam Muzaffar , BORRISON, Reuben , MALAKUTI, Somayeh
Abstract: A computer-implemented method (100) for operating an insulated-gate bipolar transistor, IGBT, comprising the steps of:
• determining (110), by at least one machine learning model, based at least in part on the current operating state (1), and/or on current operating parameters (2), of the IGBT, a prediction of a change of the IGBT temperature (3) over a given temporal prediction horizon;
• determining (120), based on this prediction (3) on the one hand and the current operating state (1), and/or on the current operating parameters (2), on the other hand, a modification (4) of the operating parameters of the IGBT, and/or of a cooling system that acts on the IGBT, that is likely to reduce the absolute value of the predicted change of the IGBT temperature; and
• applying (130) this modification (4) to the operation of the IGBT, and/or for the cooling system.-
公开(公告)号：EP4267955A1
公开(公告)日：2023-11-01
申请号：EP20838550.0
申请日：2020-12-22
Applicant: ABB SCHWEIZ AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , AALTONEN, Teija
IPC: G01N33/28
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公开(公告)号：EP4106186A1
公开(公告)日：2022-12-21
申请号：EP21179278.3
申请日：2021-06-14
Applicant: ABB Schweiz AG
Inventor： KAKOSIMOS, Panagiotis , ALKKIOMAKI, Olli , KOLONDJOVSKI, Zlatko
IPC: H02P29/024 , H02P29/60 , H02P29/62 , H02P29/64
Abstract: A method of determining the cooling efficiency of an electric motor having a stator provided with stator windings, the method comprising: 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.
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