Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors
With the wide application of pulse width modulation (PWM) technology in motor driving, the bearing current problem has become more and more severe. The most complicated problem in analyzing bearing currents is modeling the equivalent circuit of the bearing and determination of the equivalent paramet...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/6/1121 |
| _version_ | 1828152300664782848 |
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| author | Xuejiao Ren Ruifang Liu Erle Yang |
| author_facet | Xuejiao Ren Ruifang Liu Erle Yang |
| author_sort | Xuejiao Ren |
| collection | DOAJ |
| description | With the wide application of pulse width modulation (PWM) technology in motor driving, the bearing current problem has become more and more severe. The most complicated problem in analyzing bearing currents is modeling the equivalent circuit of the bearing and determination of the equivalent parameters of the model. During the process of bearing current breakdown, the bearing undergoes a transition from the capacitor state to the resistor state. The previously used equivalent model, which only consists of a capacitor parallel with a constant resistor, cannot reveal the real breakdown process. In this paper, an improved equivalent bearing model is derived from the waveform analysis of the experiment. The variable breakdown resistance model of the bearing is put forward and the calculation method of the breakdown resistance is given. The circuit simulation results from the variable resistance bearing model were much closer to the results of the experiment than those from the constant resistance model. |
| first_indexed | 2024-04-11T22:09:59Z |
| format | Article |
| id | doaj.art-59cdf3135b0a4e2abb297992af0fa9c5 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:09:59Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-59cdf3135b0a4e2abb297992af0fa9c52022-12-22T04:00:36ZengMDPI AGEnergies1996-10732019-03-01126112110.3390/en12061121en12061121Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC MotorsXuejiao Ren0Ruifang Liu1Erle Yang2School of Electrical Engineering, Beijing Jiaotong University, Haidian Disctrict, Beijing 100044, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Haidian Disctrict, Beijing 100044, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Haidian Disctrict, Beijing 100044, ChinaWith the wide application of pulse width modulation (PWM) technology in motor driving, the bearing current problem has become more and more severe. The most complicated problem in analyzing bearing currents is modeling the equivalent circuit of the bearing and determination of the equivalent parameters of the model. During the process of bearing current breakdown, the bearing undergoes a transition from the capacitor state to the resistor state. The previously used equivalent model, which only consists of a capacitor parallel with a constant resistor, cannot reveal the real breakdown process. In this paper, an improved equivalent bearing model is derived from the waveform analysis of the experiment. The variable breakdown resistance model of the bearing is put forward and the calculation method of the breakdown resistance is given. The circuit simulation results from the variable resistance bearing model were much closer to the results of the experiment than those from the constant resistance model.https://www.mdpi.com/1996-1073/12/6/1121bearing currentbreakdownequivalent resistancebearing capacitance |
| spellingShingle | Xuejiao Ren Ruifang Liu Erle Yang Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors Energies bearing current breakdown equivalent resistance bearing capacitance |
| title | Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors |
| title_full | Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors |
| title_fullStr | Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors |
| title_full_unstemmed | Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors |
| title_short | Modelling of the Bearing Breakdown Resistance in Bearing Currents Problem of AC Motors |
| title_sort | modelling of the bearing breakdown resistance in bearing currents problem of ac motors |
| topic | bearing current breakdown equivalent resistance bearing capacitance |
| url | https://www.mdpi.com/1996-1073/12/6/1121 |
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