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Application of self-tuning fuzzy PID controller for a SRM direct drive volume control hydraulic press

机译：自整定模糊PID控制器在SRM直驱式液压机上的应用

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摘要

A new kind of volume control servo hydraulic press driven directly by Switched Reluctance Motor (SRM) is presented in this paper. In considering the saturation and dead zone nonlinearity as well as the time-variability and the time lag existed in SRM direct drive volume control system, a fuzzy PID control method is introduced to improve the overall performance of the electro-hydraulic position servo system. The relationships between the PID parameters and the response characteristics of electro-hydraulic position servo system are investigated. The fuzzy inference rules which enable adaptive adjustment of PID parameters are established based on the error and change in error. The simulations and experiments of step response and cosine tracking are carried out on the SRM direct drive hydraulic press. The results indicate that the fuzzy self-tuning PID method has great ability of restraining external disturbance, and it can effectively raise the position tracking ability of the volume control electro-hydraulic servo system.
机译：提出了一种由开关磁阻电机（SRM）直接驱动的新型容积控制伺服液压机。考虑到SRM直接驱动量控制系统中存在的饱和度和死区非线性以及时变性和时滞性，提出了一种模糊PID控制方法来改善电液位置伺服系统的整体性能。研究了PID参数与电动液压位置伺服系统响应特性之间的关系。基于误差和误差变化，建立了能够自适应调整PID参数的模糊推理规则。在SRM直驱式液压机上进行了阶跃响应和余弦跟踪的仿真和实验。结果表明，模糊自整定PID方法具有较强的抑制外界干扰的能力，可以有效提高音量控制电液伺服系统的位置跟踪能力。

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