A NOVEL NONLINEAR FEEDBACK CONTROL AND ITS APPLICATION TO COURSE-KEEPING AUTOPILOT

A NOVEL NONLINEAR FEEDBACK CONTROL AND ITS APPLICATION TO COURSE-KEEPING AUTOPILOT
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一种新型非线性反馈控制及其在航向自动驾驶仪中的应用

DOI:
10.6119/jmst-015-0810-1
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发表时间:
2016-01
影响因子:
0.5
通讯作者:
Chen Xiu-Jia
Chen Xiu-Jia
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhang Xian-Ku;Zhang Guo-Qing;Chen Xiu-Jia

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在过去的几年里,越来越多的注意力集中在开发新的控制算法来稳定或调节实际对象。本文提出了一种利用正弦函数调制输出误差来改善控制性能的新方法。该非线性反馈信号被发送到原始控制律,而不是输出误差本身,输出误差是系统输出与参考信号之间的导数。这就是所谓的非线性反馈控制技术。借助描述函数和鲁棒控制理论,理论分析表明,由于非线性反馈方案的优点,需要较小的控制努力,以获得相同的控制性能。最后,通过对某型“裕隆”轮的仿真实验,验证了该算法的有效性。
Over the past years, more and more concentration has been attended on developing novel control algorithms to stabilize or regulate the practical plant. In this note, a novel technique is presented to improve the control performance by modulating the output error using a sine function. This nonlinear feedback signal is sent to the original control law instead of the output error itself, which is the derivation between the system output and the reference signal. That is the so-called nonlinear feedback control technique. By virtue of the describing function and the robust control theory, the theoretical analysis shows that the minor control efforts are required to obtain the same control performance due to the merit of the nonlinear feedback scheme. Simulation experiment based on 〞YULONG〞 vessel is presented to illustrate the effectiveness of the proposed algorithm.
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