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首页> 外文期刊>Aerospace science and technology >Adaptive fuzzy PID composite control with hysteresis-band switching for line of sight stabilization servo system
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Adaptive fuzzy PID composite control with hysteresis-band switching for line of sight stabilization servo system

机译：视线稳定伺服系统带滞环切换的自适应模糊PID复合控制

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摘要

The line of sight (LOS) stabilization control based on gyro stabilized platform is required to isolate the LOS from the disturbance and vibration of carrier and ensure pointing and tracking for target in electro-optical tracking system. A composite adaptive fuzzy proportional-integral-derivative (PID) control with hysteresis-band switching is developed to achieve real-time and high stabilization precision for this nonlinear uncertainty servo system. First of all, in the adaptive fuzzy controller, the pre-designed self-tuning factors are able to modify the parameters of fuzzy controller online, and a new learning algorithm of fuzzy rules modifier is proposed to adjust control efforts. Then, an improved PID controller is chosen to restrain motor saturation and eliminate the static error originated from the fuzzy controller, and fulfill non-error control. The hysteresis-band switching strategy is given to deal with jitter caused by single-point switching condition. The experimental results in four-axis servo turntable show that the proposed method can achieve nice control performance and is proved to be effective in bating carrier disturbances within the scope of definite noise and sensitivity to acceleration.
机译：需要基于陀螺稳定平台的视线（LOS）稳定控制，以将LOS与载体的干扰和振动隔离开，并确保在电光跟踪系统中对目标进行指向和跟踪。开发了具有滞环带切换的复合自适应模糊比例积分微分（PID）控制，以实现该非线性不确定伺服系统的实时性和高稳定度精度。首先，在自适应模糊控制器中，预先设计的自整定因子能够在线修改模糊控制器的参数，并提出了一种新的模糊规则修改器学习算法来调整控制量。然后，选择一种改进的PID控制器来抑制电机饱和并消除源自模糊控制器的静态误差，并实现无误差控制。给出了磁滞带切换策略，以应对由单点切换条件引起的抖动。在四轴伺服转台上的实验结果表明，该方法可以达到良好的控制性能，在抑制噪声和加速度敏感性的范围内，可以有效地抑制载波干扰。

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  • 来源
    《Aerospace science and technology》 |2011年第1期|p.25-32|共8页
  • 作者

    Wei Ji; Qi Li; Bo Xu; Dean Zhao; Shixiong Fang;

  • 作者单位

    The School of Electrical and information Engineering, Jiangsu University, Zhenjiang, 212013, China;

    Research Institute of Automation, Southeast University, Nanjing, 210096, China;

    The School of Electrical and information Engineering, Jiangsu University, Zhenjiang, 212013, China;

    The School of Electrical and information Engineering, Jiangsu University, Zhenjiang, 212013, China;

    Research Institute of Automation, Southeast University, Nanjing, 210096, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    los stabilization; gyro stabilized platform; adaptive fuzzy pid composite control; hysteresis-band switching;

    机译：损失稳定;陀螺稳定平台;自适应模糊pid复合控制;磁滞带切换;

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