Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design
Abstract A new approach to the active fault diagnosis (AFD) for input redundant plants is presented in this paper. A test signal which helps the diagnosis is injected to the plant in addition to nominal control input in the AFD typically. One feature of the proposed AFD is adaptive allocation of the...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-06-01
|
| Series: | ROBOMECH Journal |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40648-020-00175-0 |
| _version_ | 1818995390321524736 |
|---|---|
| author | Natsuki Kawaguchi Nozomu Araki Takao Sato Masaharu Kuroda Toshihiko Asami |
| author_facet | Natsuki Kawaguchi Nozomu Araki Takao Sato Masaharu Kuroda Toshihiko Asami |
| author_sort | Natsuki Kawaguchi |
| collection | DOAJ |
| description | Abstract A new approach to the active fault diagnosis (AFD) for input redundant plants is presented in this paper. A test signal which helps the diagnosis is injected to the plant in addition to nominal control input in the AFD typically. One feature of the proposed AFD is adaptive allocation of the test signal. The adaptive allocator which distributes the test signal and injects it to the redundant actuators is introduced in this paper. A fault-diagnosis (FD) system that estimates fault location and its magnitude from adaptive parameter of the adaptive allocator is constructed with a simple neural network (NN) model. Furthermore, a A fault-tolerant adaptive control system which includes the adaptive test signal allocator is designed based on the model reference adaptive control (MRAC) technique. The adaptive laws of the adaptive allocator and controller are derived by using a suitable Lyapunov function. By performing experiments using a two-input redundant plant, we show the effectiveness and applicability of the proposed AFD and MRAC system. |
| first_indexed | 2024-12-20T21:13:05Z |
| format | Article |
| id | doaj.art-af04fdeef7a4491fb4d73013c8403fc7 |
| institution | Directory Open Access Journal |
| issn | 2197-4225 |
| language | English |
| last_indexed | 2024-12-20T21:13:05Z |
| publishDate | 2020-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | ROBOMECH Journal |
| spelling | doaj.art-af04fdeef7a4491fb4d73013c8403fc72022-12-21T19:26:30ZengSpringerOpenROBOMECH Journal2197-42252020-06-017111710.1186/s40648-020-00175-0Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system designNatsuki Kawaguchi0Nozomu Araki1Takao Sato2Masaharu Kuroda3Toshihiko Asami4Graduate School of Engineering, University of HyogoGraduate School of Engineering, University of HyogoGraduate School of Engineering, University of HyogoGraduate School of Engineering, University of HyogoGraduate School of Engineering, University of HyogoAbstract A new approach to the active fault diagnosis (AFD) for input redundant plants is presented in this paper. A test signal which helps the diagnosis is injected to the plant in addition to nominal control input in the AFD typically. One feature of the proposed AFD is adaptive allocation of the test signal. The adaptive allocator which distributes the test signal and injects it to the redundant actuators is introduced in this paper. A fault-diagnosis (FD) system that estimates fault location and its magnitude from adaptive parameter of the adaptive allocator is constructed with a simple neural network (NN) model. Furthermore, a A fault-tolerant adaptive control system which includes the adaptive test signal allocator is designed based on the model reference adaptive control (MRAC) technique. The adaptive laws of the adaptive allocator and controller are derived by using a suitable Lyapunov function. By performing experiments using a two-input redundant plant, we show the effectiveness and applicability of the proposed AFD and MRAC system.http://link.springer.com/article/10.1186/s40648-020-00175-0Active fault diagnosisFault-tolerant controlAdaptive controlInput redundant systemsFaulty actuators |
| spellingShingle | Natsuki Kawaguchi Nozomu Araki Takao Sato Masaharu Kuroda Toshihiko Asami Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design ROBOMECH Journal Active fault diagnosis Fault-tolerant control Adaptive control Input redundant systems Faulty actuators |
| title | Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design |
| title_full | Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design |
| title_fullStr | Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design |
| title_full_unstemmed | Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design |
| title_short | Active fault-diagnosis method using adaptive allocator and fault-tolerant adaptive control system design |
| title_sort | active fault diagnosis method using adaptive allocator and fault tolerant adaptive control system design |
| topic | Active fault diagnosis Fault-tolerant control Adaptive control Input redundant systems Faulty actuators |
| url | http://link.springer.com/article/10.1186/s40648-020-00175-0 |
| work_keys_str_mv | AT natsukikawaguchi activefaultdiagnosismethodusingadaptiveallocatorandfaulttolerantadaptivecontrolsystemdesign AT nozomuaraki activefaultdiagnosismethodusingadaptiveallocatorandfaulttolerantadaptivecontrolsystemdesign AT takaosato activefaultdiagnosismethodusingadaptiveallocatorandfaulttolerantadaptivecontrolsystemdesign AT masaharukuroda activefaultdiagnosismethodusingadaptiveallocatorandfaulttolerantadaptivecontrolsystemdesign AT toshihikoasami activefaultdiagnosismethodusingadaptiveallocatorandfaulttolerantadaptivecontrolsystemdesign |