A switching control strategy of safety protection problem for aero-engines
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摘要
This paper focuses on a switching control of the temperature protection problem for aero-engines. Firstly, an equilibrium manifold expansion(EME) model is established to describe the aero-engine for high accuracy. Then, a speed regulation controller is designed to obtain the asymptotic stability. As the temperature measurements usually have errors for aero-engines, a safety protection control strategy based on the sliding mode control(SMC) is proposed. It can avoid the over-temperature problem for aero-engines, furthermore, possess the disturbance-resistant performance. Then we design an appropriate switching law which makes the aero-engine have a fast transient response speed without exceeding the safety boundary. Finally, a simulation of a two-spool turbofan engine model is given to demonstrate the effectiveness of the proposed method.
This paper focuses on a switching control of the temperature protection problem for aero-engines. Firstly, an equilibrium manifold expansion(EME) model is established to describe the aero-engine for high accuracy. Then, a speed regulation controller is designed to obtain the asymptotic stability. As the temperature measurements usually have errors for aero-engines, a safety protection control strategy based on the sliding mode control(SMC) is proposed. It can avoid the over-temperature problem for aero-engines, furthermore, possess the disturbance-resistant performance. Then we design an appropriate switching law which makes the aero-engine have a fast transient response speed without exceeding the safety boundary. Finally, a simulation of a two-spool turbofan engine model is given to demonstrate the effectiveness of the proposed method.
引文
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