Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems
The elevating servo system (ESS) of vehicle-mounted howitzer (VMH) is a typical closed-loop electrohydraulic position servo system, and the faults of its actuator and sensor seriously affect the safety and reliability of the system. In practice, model uncertainty, nonlinearities, unknown disturbance...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Control Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/4173871 |
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| author | Lingfei Tian Linfang Qian Miao Li Jiawei Fu |
| author_facet | Lingfei Tian Linfang Qian Miao Li Jiawei Fu |
| author_sort | Lingfei Tian |
| collection | DOAJ |
| description | The elevating servo system (ESS) of vehicle-mounted howitzer (VMH) is a typical closed-loop electrohydraulic position servo system, and the faults of its actuator and sensor seriously affect the safety and reliability of the system. In practice, model uncertainty, nonlinearities, unknown disturbance, and output noise present enormous challenges to conduct fault detection of the system. In the current paper, an online fault detection scheme using the sliding mode technology is proposed. Not only the derivation method of state equation and some common fault expressions but also a new design of sliding mode observer with the ability to eliminate the influences of the above factors on detection results is given. The observer’s parameter matrices are obtained by the linear matrix inequality. To promote the fault detection capability, a statistical-based dynamic threshold is developed to detect actuator faults and sensor faults simultaneously. Finally, experimental studies are implemented on a test rig for validating the system model, and the results of four experiments show the effectiveness of proposed methods. |
| format | Article |
| id | doaj-art-3c115e862a3647f2b138843458f23346 |
| institution | Kabale University |
| issn | 1687-5249 1687-5257 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Control Science and Engineering |
| spelling | doaj-art-3c115e862a3647f2b138843458f233462025-02-03T05:52:06ZengWileyJournal of Control Science and Engineering1687-52491687-52572019-01-01201910.1155/2019/41738714173871Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo SystemsLingfei Tian0Linfang Qian1Miao Li2Jiawei Fu3School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaNorinco Group Planning and Research Institute, Beijing 100053, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaThe elevating servo system (ESS) of vehicle-mounted howitzer (VMH) is a typical closed-loop electrohydraulic position servo system, and the faults of its actuator and sensor seriously affect the safety and reliability of the system. In practice, model uncertainty, nonlinearities, unknown disturbance, and output noise present enormous challenges to conduct fault detection of the system. In the current paper, an online fault detection scheme using the sliding mode technology is proposed. Not only the derivation method of state equation and some common fault expressions but also a new design of sliding mode observer with the ability to eliminate the influences of the above factors on detection results is given. The observer’s parameter matrices are obtained by the linear matrix inequality. To promote the fault detection capability, a statistical-based dynamic threshold is developed to detect actuator faults and sensor faults simultaneously. Finally, experimental studies are implemented on a test rig for validating the system model, and the results of four experiments show the effectiveness of proposed methods.http://dx.doi.org/10.1155/2019/4173871 |
| spellingShingle | Lingfei Tian Linfang Qian Miao Li Jiawei Fu Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems Journal of Control Science and Engineering |
| title | Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems |
| title_full | Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems |
| title_fullStr | Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems |
| title_full_unstemmed | Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems |
| title_short | Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems |
| title_sort | faults detection using sliding mode observer and its application on elevating servo systems |
| url | http://dx.doi.org/10.1155/2019/4173871 |
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