High-Performance Flux Tracking Controller for Reluctance Actuator
To meet the ever-increasing demand for next-generation lithography machines, the actuator plays an important role in the achievement of high acceleration of the wafer stage. However, the voice coil motor, which is widely used in high-precision positioning systems, is reaching its physical limits. To...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/19/10811 |
| _version_ | 1797576205009944576 |
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| author | Yang Liu Qian Miao Yue Dong |
| author_facet | Yang Liu Qian Miao Yue Dong |
| author_sort | Yang Liu |
| collection | DOAJ |
| description | To meet the ever-increasing demand for next-generation lithography machines, the actuator plays an important role in the achievement of high acceleration of the wafer stage. However, the voice coil motor, which is widely used in high-precision positioning systems, is reaching its physical limits. To tackle this problem, a novel way to design the actuator using the magnetoresistance effect is argued due to the high force densities. However, the strong nonlinearity limits its application in the nan-positioning system. In particular, the hysteresis is coupled with eddy effects and displacement, which lead to a rate-dependent and displacement-dependent hysteresis effect in the reluctance actuator. In this paper, a Hammerstein structure is used to model the rate-dependent reluctance actuator. At the same time, the displacement-dependent of the model is regarded as the interference with the system. Additionally, a control strategy combining inverse model compensation and the disturbance observer-based discrete sliding mode control was proposed, which can effectively suppress the hysteresis effect. It is worthy pointing out that the nonlinear system is transformed into a linear system with inversion bias and disturbance by the inverse model compensation. What is more, the sliding mode controller based on the disturbance observer is designed to deal with the unmodeled dynamics, displacement disturbances, and model identification errors in linear systems. Thus, the tracking performance and robustness to external disturbances of the system are improved. The simulation results show that it is superior to the PI controller combined with an inverse compensator and even to the discrete sliding mode controller connected with inverse compensator, confirming the effectiveness of the novel control method in alleviating hysteresis. |
| first_indexed | 2024-03-10T21:49:55Z |
| format | Article |
| id | doaj.art-c6baa2d4e15b463b8d62d85a94d2ba93 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T21:49:55Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-c6baa2d4e15b463b8d62d85a94d2ba932023-11-19T14:04:30ZengMDPI AGApplied Sciences2076-34172023-09-0113191081110.3390/app131910811High-Performance Flux Tracking Controller for Reluctance ActuatorYang Liu0Qian Miao1Yue Dong2Center of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, ChinaCenter of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, ChinaCenter of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology, Harbin 150080, ChinaTo meet the ever-increasing demand for next-generation lithography machines, the actuator plays an important role in the achievement of high acceleration of the wafer stage. However, the voice coil motor, which is widely used in high-precision positioning systems, is reaching its physical limits. To tackle this problem, a novel way to design the actuator using the magnetoresistance effect is argued due to the high force densities. However, the strong nonlinearity limits its application in the nan-positioning system. In particular, the hysteresis is coupled with eddy effects and displacement, which lead to a rate-dependent and displacement-dependent hysteresis effect in the reluctance actuator. In this paper, a Hammerstein structure is used to model the rate-dependent reluctance actuator. At the same time, the displacement-dependent of the model is regarded as the interference with the system. Additionally, a control strategy combining inverse model compensation and the disturbance observer-based discrete sliding mode control was proposed, which can effectively suppress the hysteresis effect. It is worthy pointing out that the nonlinear system is transformed into a linear system with inversion bias and disturbance by the inverse model compensation. What is more, the sliding mode controller based on the disturbance observer is designed to deal with the unmodeled dynamics, displacement disturbances, and model identification errors in linear systems. Thus, the tracking performance and robustness to external disturbances of the system are improved. The simulation results show that it is superior to the PI controller combined with an inverse compensator and even to the discrete sliding mode controller connected with inverse compensator, confirming the effectiveness of the novel control method in alleviating hysteresis.https://www.mdpi.com/2076-3417/13/19/10811reluctance actuatorHammerstein structurehysteresisdisturbance observerdiscrete sliding mode control |
| spellingShingle | Yang Liu Qian Miao Yue Dong High-Performance Flux Tracking Controller for Reluctance Actuator Applied Sciences reluctance actuator Hammerstein structure hysteresis disturbance observer discrete sliding mode control |
| title | High-Performance Flux Tracking Controller for Reluctance Actuator |
| title_full | High-Performance Flux Tracking Controller for Reluctance Actuator |
| title_fullStr | High-Performance Flux Tracking Controller for Reluctance Actuator |
| title_full_unstemmed | High-Performance Flux Tracking Controller for Reluctance Actuator |
| title_short | High-Performance Flux Tracking Controller for Reluctance Actuator |
| title_sort | high performance flux tracking controller for reluctance actuator |
| topic | reluctance actuator Hammerstein structure hysteresis disturbance observer discrete sliding mode control |
| url | https://www.mdpi.com/2076-3417/13/19/10811 |
| work_keys_str_mv | AT yangliu highperformancefluxtrackingcontrollerforreluctanceactuator AT qianmiao highperformancefluxtrackingcontrollerforreluctanceactuator AT yuedong highperformancefluxtrackingcontrollerforreluctanceactuator |