Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor
The consistency of the two-phase mode responses is essential to ensure the mechanical performance and stability of traveling-wave ultrasonic motors. Due to the asymmetry of the stator, inevitable manufacturing errors, or imbalance of the excitation voltages, the amplitudes of the two-phase standing...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Actuators |
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| Online Access: | https://www.mdpi.com/2076-0825/11/10/278 |
| _version_ | 1797476418860351488 |
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| author | Xiaochen Gao Ming Yang Yuanfei Zhu Yinghua Hu |
| author_facet | Xiaochen Gao Ming Yang Yuanfei Zhu Yinghua Hu |
| author_sort | Xiaochen Gao |
| collection | DOAJ |
| description | The consistency of the two-phase mode responses is essential to ensure the mechanical performance and stability of traveling-wave ultrasonic motors. Due to the asymmetry of the stator, inevitable manufacturing errors, or imbalance of the excitation voltages, the amplitudes of the two-phase standing waves cannot be exactly the same, resulting in unstable operating of USM. To improve the stability of the motor and decrease the velocity fluctuation, a closed-loop velocity control scheme considering two-phase consistency compensation based on the vibration amplitude of the stator is proposed. This scheme is implemented under the framework of the stator vibration amplitude-based velocity control and parallel resonance frequency tracking (VCBVF). Based on the relationship between the velocity and stator vibration amplitude (SVA), two-phase excitation signals are adjusted individually and simultaneously. Compared with the single-phase feedback VCBVF control scheme, experimental results show that the proposed scheme can reduce the overshoot from 17.50% to 6.90% and velocity fluctuations from 7.69 rpm to 2.40 rpm, under different load torques. The proposed scheme can compensate for the two-phase electrical inconsistency and improve the velocity stability and output power of motor operation under various conditions. |
| first_indexed | 2024-03-09T20:57:33Z |
| format | Article |
| id | doaj.art-86204497f67448869284594fc1b984a7 |
| institution | Directory Open Access Journal |
| issn | 2076-0825 |
| language | English |
| last_indexed | 2024-03-09T20:57:33Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Actuators |
| spelling | doaj.art-86204497f67448869284594fc1b984a72023-11-23T22:17:22ZengMDPI AGActuators2076-08252022-09-01111027810.3390/act11100278Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic MotorXiaochen Gao0Ming Yang1Yuanfei Zhu2Yinghua Hu3School of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaSchool of Sensing Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaThe consistency of the two-phase mode responses is essential to ensure the mechanical performance and stability of traveling-wave ultrasonic motors. Due to the asymmetry of the stator, inevitable manufacturing errors, or imbalance of the excitation voltages, the amplitudes of the two-phase standing waves cannot be exactly the same, resulting in unstable operating of USM. To improve the stability of the motor and decrease the velocity fluctuation, a closed-loop velocity control scheme considering two-phase consistency compensation based on the vibration amplitude of the stator is proposed. This scheme is implemented under the framework of the stator vibration amplitude-based velocity control and parallel resonance frequency tracking (VCBVF). Based on the relationship between the velocity and stator vibration amplitude (SVA), two-phase excitation signals are adjusted individually and simultaneously. Compared with the single-phase feedback VCBVF control scheme, experimental results show that the proposed scheme can reduce the overshoot from 17.50% to 6.90% and velocity fluctuations from 7.69 rpm to 2.40 rpm, under different load torques. The proposed scheme can compensate for the two-phase electrical inconsistency and improve the velocity stability and output power of motor operation under various conditions.https://www.mdpi.com/2076-0825/11/10/278traveling-wave ultrasonic motorstwo-phase stator vibration amplitudeparallel resonance frequency trackingvelocity control |
| spellingShingle | Xiaochen Gao Ming Yang Yuanfei Zhu Yinghua Hu Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor Actuators traveling-wave ultrasonic motors two-phase stator vibration amplitude parallel resonance frequency tracking velocity control |
| title | Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor |
| title_full | Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor |
| title_fullStr | Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor |
| title_full_unstemmed | Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor |
| title_short | Two-Phase Stator Vibration Amplitude Compensation of Traveling-Wave Ultrasonic Motor |
| title_sort | two phase stator vibration amplitude compensation of traveling wave ultrasonic motor |
| topic | traveling-wave ultrasonic motors two-phase stator vibration amplitude parallel resonance frequency tracking velocity control |
| url | https://www.mdpi.com/2076-0825/11/10/278 |
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