Abstract：The hydrodynamic force disturbances in direct drive valve based on voice coil motor (VCM-DDV) have greater impact on system performance. There are some weaknesses in classic Proportion integration differentiation(PID)control. In this paper, a mathematical model of the VCM-DDV is established. A double-closed loop control structure composed of position loop and current loop is presented. A novel nonlinear PID (NLPID) control strategy is applied in position loop. Fuzzy control is used to achieve self-tuning of control parameters. The design method of NLPID controller in position loop is presented in detail. Simulation and experimental results show the control strategy has a better anti-interference and robustness, superior stability and dynamic performance than classic PID and fuzzy PID in the same disturbance.
王大彧, 郭宏, 刘治, 张立佳. 直驱阀用音圈电机的模糊非线性PID控制[J]. 电工技术学报, 2011, 26(3): 52-56.
Wang Dayu, Guo Hong, Liu Zhi, Zhang Lijia. A Fuzzy Nonlinear PID Control of Voice Coil Motor Used in Direct Drive Valve. Transactions of China Electrotechnical Society, 2011, 26(3): 52-56.
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