A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems
Electromechanical actuator (EMA) systems are widely employed in missiles. Due to the influence of the nonlinearities, there is a flat-top of about 64 ms when tracking the small-angle sinusoidal signals, which significantly reduces the performance of the EMA system and even causes the missile traject...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-12-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/18/12/4449 |
| _version_ | 1828113729521188864 |
|---|---|
| author | Man Zhou Dapeng Mao Mingyue Zhang Lihong Guo Mingde Gong |
| author_facet | Man Zhou Dapeng Mao Mingyue Zhang Lihong Guo Mingde Gong |
| author_sort | Man Zhou |
| collection | DOAJ |
| description | Electromechanical actuator (EMA) systems are widely employed in missiles. Due to the influence of the nonlinearities, there is a flat-top of about 64 ms when tracking the small-angle sinusoidal signals, which significantly reduces the performance of the EMA system and even causes the missile trajectory to oscillate. Aiming to solve these problems, this paper presents a hybrid control for flat-top situations. In contrast to the traditional PID or sliding mode controllers that missiles usually use, this paper utilizes improved sliding mode control based on a novel reaching law to eliminate the flat-top during the steering of the input signal, and utilizes the PID control to replace discontinuous control and improve the performance of EMA system. In addition, boundary layer and switching function are employed to solve the high-frequency chattering problem caused by traditional sliding mode control. Experiments indicate that the hybrid control can evidently reduce the flat-top time from 64 ms to 12 ms and eliminate the trajectory limit cycle oscillation. Compared with PID controllers, the proposed controller provides better performance—less chattering, less flat-top, higher precision, and no oscillation. |
| first_indexed | 2024-04-11T12:13:31Z |
| format | Article |
| id | doaj.art-070bcb63181e450883d7ce6c0da9715c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:13:31Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-070bcb63181e450883d7ce6c0da9715c2022-12-22T04:24:28ZengMDPI AGSensors1424-82202018-12-011812444910.3390/s18124449s18124449A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator SystemsMan Zhou0Dapeng Mao1Mingyue Zhang2Lihong Guo3Mingde Gong4Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaChangchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, ChinaSchool of Mechanical and Electronic Engineering, Jilin University, Changchun 130025, ChinaElectromechanical actuator (EMA) systems are widely employed in missiles. Due to the influence of the nonlinearities, there is a flat-top of about 64 ms when tracking the small-angle sinusoidal signals, which significantly reduces the performance of the EMA system and even causes the missile trajectory to oscillate. Aiming to solve these problems, this paper presents a hybrid control for flat-top situations. In contrast to the traditional PID or sliding mode controllers that missiles usually use, this paper utilizes improved sliding mode control based on a novel reaching law to eliminate the flat-top during the steering of the input signal, and utilizes the PID control to replace discontinuous control and improve the performance of EMA system. In addition, boundary layer and switching function are employed to solve the high-frequency chattering problem caused by traditional sliding mode control. Experiments indicate that the hybrid control can evidently reduce the flat-top time from 64 ms to 12 ms and eliminate the trajectory limit cycle oscillation. Compared with PID controllers, the proposed controller provides better performance—less chattering, less flat-top, higher precision, and no oscillation.https://www.mdpi.com/1424-8220/18/12/4449electromechanical actuatorflat-toplimit cycle oscillationchatteringPID-ISM |
| spellingShingle | Man Zhou Dapeng Mao Mingyue Zhang Lihong Guo Mingde Gong A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems Sensors electromechanical actuator flat-top limit cycle oscillation chattering PID-ISM |
| title | A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems |
| title_full | A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems |
| title_fullStr | A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems |
| title_full_unstemmed | A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems |
| title_short | A Hybrid Control with PID–Improved Sliding Mode for Flat-Top of Missile Electromechanical Actuator Systems |
| title_sort | hybrid control with pid improved sliding mode for flat top of missile electromechanical actuator systems |
| topic | electromechanical actuator flat-top limit cycle oscillation chattering PID-ISM |
| url | https://www.mdpi.com/1424-8220/18/12/4449 |
| work_keys_str_mv | AT manzhou ahybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT dapengmao ahybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT mingyuezhang ahybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT lihongguo ahybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT mingdegong ahybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT manzhou hybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT dapengmao hybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT mingyuezhang hybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT lihongguo hybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems AT mingdegong hybridcontrolwithpidimprovedslidingmodeforflattopofmissileelectromechanicalactuatorsystems |