Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction
Adjustable speed drives use Pulse Width Modulation (PWM) to switch DC-bus voltage for the synthesis of three-phase voltages to provide power to the permanent magnet synchronous motor (PMSM). This switching action produces very short rise and fall times and Common Mode Voltage (CMV) in the motor wind...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/21/5762 |
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| author | Muhammad Aqil Jun-Hyuk Im Jin Hur |
| author_facet | Muhammad Aqil Jun-Hyuk Im Jin Hur |
| author_sort | Muhammad Aqil |
| collection | DOAJ |
| description | Adjustable speed drives use Pulse Width Modulation (PWM) to switch DC-bus voltage for the synthesis of three-phase voltages to provide power to the permanent magnet synchronous motor (PMSM). This switching action produces very short rise and fall times and Common Mode Voltage (CMV) in the motor winding, exciting the parasitic capacitances inherent to the motor geometry. These parasitic capacitances give rise to shaft voltage due to a voltage divider action. Therefore, in this paper, first, motor parasitic capacitances and voltage divider action is explained. Second, the Barium Titanate (BTO) layer is coated onto the rotor to enhance stator-to-rotor compound capacitance and a simulation is performed showing the dependence of the shaft voltage on the permittivity of the perovskite (BTO) layer. The rotor BTO layer reduces the bearing voltage ratio as well. Third, experimental results are presented showing effectiveness of the application of the BTO layer to rotor and reduction of shaft voltage of the motor in anticipation to mitigate the damaging electric discharge machining (EDM) bearing currents. Likewise, the experiment shows that the magnetic design of the motor is not affected by the BTO layer to rotor. |
| first_indexed | 2024-03-10T15:06:50Z |
| format | Article |
| id | doaj.art-32359a4171d340ada9de94b2275c74cb |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T15:06:50Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-32359a4171d340ada9de94b2275c74cb2023-11-20T19:40:31ZengMDPI AGEnergies1996-10732020-11-011321576210.3390/en13215762Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage ReductionMuhammad Aqil0Jun-Hyuk Im1Jin Hur2Department of Electrical Engineering, Incheon National University, Incheon 22012, KoreaDepartment of Electrical Engineering, Incheon National University, Incheon 22012, KoreaDepartment of Electrical Engineering, Incheon National University, Incheon 22012, KoreaAdjustable speed drives use Pulse Width Modulation (PWM) to switch DC-bus voltage for the synthesis of three-phase voltages to provide power to the permanent magnet synchronous motor (PMSM). This switching action produces very short rise and fall times and Common Mode Voltage (CMV) in the motor winding, exciting the parasitic capacitances inherent to the motor geometry. These parasitic capacitances give rise to shaft voltage due to a voltage divider action. Therefore, in this paper, first, motor parasitic capacitances and voltage divider action is explained. Second, the Barium Titanate (BTO) layer is coated onto the rotor to enhance stator-to-rotor compound capacitance and a simulation is performed showing the dependence of the shaft voltage on the permittivity of the perovskite (BTO) layer. The rotor BTO layer reduces the bearing voltage ratio as well. Third, experimental results are presented showing effectiveness of the application of the BTO layer to rotor and reduction of shaft voltage of the motor in anticipation to mitigate the damaging electric discharge machining (EDM) bearing currents. Likewise, the experiment shows that the magnetic design of the motor is not affected by the BTO layer to rotor.https://www.mdpi.com/1996-1073/13/21/5762adjustable speed drivebearing voltage ratiocommon mode voltageelectric discharge machining bearing currentsshaft voltage |
| spellingShingle | Muhammad Aqil Jun-Hyuk Im Jin Hur Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction Energies adjustable speed drive bearing voltage ratio common mode voltage electric discharge machining bearing currents shaft voltage |
| title | Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction |
| title_full | Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction |
| title_fullStr | Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction |
| title_full_unstemmed | Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction |
| title_short | Application of Perovskite Layer to Rotor for Enhanced Stator-Rotor Capacitance for PMSM Shaft Voltage Reduction |
| title_sort | application of perovskite layer to rotor for enhanced stator rotor capacitance for pmsm shaft voltage reduction |
| topic | adjustable speed drive bearing voltage ratio common mode voltage electric discharge machining bearing currents shaft voltage |
| url | https://www.mdpi.com/1996-1073/13/21/5762 |
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