A novel multivariable nonlinear robust control design for turbofan engines
Traditional steady-state control methods are applied to turbofan engines operating in the small region near certain operating conditions, which need to switch controllers for operating in the large region and then may lead to instability and performance degradation of the closed-loop system. In this...
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| Veröffentlicht in: | Transactions of the Institute of Measurement and Control 2022-03, Vol.44 (5), p.1029-1044 |
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| creator | Cheng, Dingding Liu, Lijun Yu, Zhen |
| description | Traditional steady-state control methods are applied to turbofan engines operating in the small region near certain operating conditions, which need to switch controllers for operating in the large region and then may lead to instability and performance degradation of the closed-loop system. In this paper, a novel multivariable nonlinear robust control method for turbofan engines is proposed to improve the control performance within the large region. To enlarge the controllable region, a polynomial state-space model describes the nonlinear characteristics of turbofan engines. Based on the analysis of the closed-loop control system, by using the Lyapunov function theorems, a polynomial robust controller is designed to ensure the stability and desired nonlinear control performance of turbofan engines. Compared with the classical PI, mixed sensitivity, and H∞ control, simulation results show that the proposed method has better transient responses, disturbance rejection, and other control performance for the turbofan engine within the large region. |
| doi_str_mv | 10.1177/01423312211039641 |
| format | Article |
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In this paper, a novel multivariable nonlinear robust control method for turbofan engines is proposed to improve the control performance within the large region. To enlarge the controllable region, a polynomial state-space model describes the nonlinear characteristics of turbofan engines. Based on the analysis of the closed-loop control system, by using the Lyapunov function theorems, a polynomial robust controller is designed to ensure the stability and desired nonlinear control performance of turbofan engines. 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| ispartof | Transactions of the Institute of Measurement and Control, 2022-03, Vol.44 (5), p.1029-1044 |
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| subjects | Control methods Control stability Control systems design Engines Feedback control H-infinity control Liapunov functions Multivariable control Nonlinear control Performance degradation Polynomials Robust control State space models Transient response Turbofan engines |
| title | A novel multivariable nonlinear robust control design for turbofan engines |
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