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arXiv 2312.04049eess.SYcs.SY
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一种带磁复位的执行器 第二部分:驱动电路与控制回路

An Actuator with Magnetic Restoration, Part II: Drive Circuit and Control Loops

Sajjad Mohammadi, William R. Benner, James L. Kirtley, Jeffrey H. Lang

AI总结:

本文为磁复位执行器研究的第二部分,设计了运放驱动电路与高精度仿真模型,实现三种DSP位置控制方案,通过多维度指标评估性能并对比优劣,为相关应用提供参考。

摘要:

在第二部分中,本文提出并设计了一种基于运算放大器的驱动器。随后,构建了驱动电路与电流回路的高精度模型作为仿真平台,同时推导了其简化版本,适配高效设计需求。通过综合评估,详细验证了执行器与驱动电路建模的准确性和有效性,展现出其优于现有方法的特性,强调了涡流建模的重要性。此外,还对所设计电流回路的有效性及实际权衡进行了工程设计与讨论。\n接着,本文实现了三种基于DSP的位置控制技术:电压驱动下的极点配置、电流驱动下的极点配置,以及带前馈线性化的非线性控制。同时采用全阶观测器与降阶观测器估计不可测状态。通过阶跃响应中的上升时间、超调量、稳态误差、大信号跟踪,以及频域中的带宽、鲁棒性、相位裕度、灵敏度、抗扰性、抗噪性等指标,评估了控制设计在各类应用中的性能。对比了所实现控制策略的独有特征,细致讨论了各自的优缺点,为其潜在应用提供参考。

英文摘要:

In part II, an op-amp-based drive is proposed and designed. Subsequently, a very accurate model for the drive circuit and the current loop is developed as a simulation platform, while its simplified version is derived, tailored for efficient design purposes. Through a comprehensive evaluation, the accuracy and efficacy of both the actuator and drive circuit modeling is scrutinized, showcasing their superiorities over existing approaches. The importance of eddy current modeling is underscored. Also, the effectiveness of the designed current loop and its practical trade-offs are engineered and discussed. Then, three DSP-based position control techniques are implemented: pole placement with voltage drive, pole placement with current drive, and nonlinear control with feed linearization. Both full-order and reduced-order observers are leveraged to estimate the unmeasured states. The performance of control designs across various applications are evaluated through indices such as rise time, overshoot, steady-state error, and large-signal tracking in the step response as well as bandwidth, robustness, phase margin, sensitivity, disturbance rejection, and noise rejection in the frequency domain. The distinctive features of implemented control strategy are compared, offering a nuanced discussion of their respective advantages and drawbacks, shedding light on their potential applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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