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首页> 外文期刊>Expert systems with applications >A Self-tuning Fuzzy Pid-type Controller Design For Unbalance Compensation In An Active Magnetic Bearing
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A Self-tuning Fuzzy Pid-type Controller Design For Unbalance Compensation In An Active Magnetic Bearing

机译：有源电磁轴承不平衡补偿的自整定模糊PID型控制器设计

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摘要

This paper presents a design for a fuzzy gain tuning mechanism dealing with the problem of unbalanced vibration problem in an active magnetic bearing (AMB) system. For the purpose of enhancing the performance of the AMB system, we replace the conventional proportional-integral-derivative (PID) controller with a self-tuning fuzzy PID-type controller (FPIDC). The shaft displacement and the unbalanced forces of the rotor are evaluated by model-based observation. If there are model uncertainties in the rotor system or nonlinearities in the magnetic bearing system, this observer may not work well at any operating speed. A fuzzy gain tuner is added to adjust the actuating signal of the self-tuning FPIDC in order to overcome the disturbances and suppress the unbalancing vibration. The experimental results show that the proposed scheme allows for a remarkable improvement in reducing vibration in an unbalanced AMB system as well as demonstrate an efficient reduction in the shaft displacement of the rotor.
机译：本文提出了一种模糊增益调整机构的设计，用于解决主动磁轴承（AMB）系统中的不平衡振动问题。为了增强AMB系统的性能，我们用自调整模糊PID型控制器（FPIDC）代替了常规的比例积分微分（PID）控制器。通过基于模型的观察评估转子的轴位移和不平衡力。如果转子系统中存在模型不确定性或电磁轴承系统中存在非线性，则此观察者可能无法在任何运行速度下正常工作。为了克服干扰并抑制不平衡振动，添加了模糊增益调谐器以调节自调节FPIDC的激励信号。实验结果表明，提出的方案可以显着改善不平衡AMB系统中的振动，并且可以有效降低转子的轴位移。

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