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首页> 外文期刊>Journal of Transportation Technologies >Design and Stability Analysis of Fuzzy Switched PID Controller for Ship Track-Keeping
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Design and Stability Analysis of Fuzzy Switched PID Controller for Ship Track-Keeping

机译：船舶航迹模糊切换PID控制器的设计与稳定性分析

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摘要

The fuzzy switched PID controller which combines fuzzy PD and conventional PI controller is proposed for ship track-keeping autopilot In this paper. By using rudder angle, the whole voyage is divided into two operating regimes which named transient operating regime and steady operating regime respectively. The fuzzy PD controller is employed in transient operating regime for increasing response, reducing overshoot and shorting transition time. And conventional PI controller is used to improve the stable accuracy in steady operating regime. The global controller is achieved by fuzzy blending of all local controllers. Routh stability criterion is utilized to obtain the stability condition of closed-loop system. The simulation results show the effectiveness of proposed method.
机译：提出了一种结合模糊PD和常规PI控制器的模糊切换PID控制器，用于船舶航迹自动驾驶。利用舵角将整个航程分为两个运行状态，分别称为瞬态运行状态和稳定运行状态。模糊PD控制器用于瞬态运行状态，以增加响应，减少过冲和缩短过渡时间。传统的PI控制器用于提高稳定运行状态下的稳定精度。全局控制器是通过模糊混合所有本地控制器来实现的。劳斯稳定性判据被用于获得闭环系统的稳定性条件。仿真结果表明了该方法的有效性。

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