Reducing Position Errors by Vibration Optimization of Stepper Motor Drive Waveforms

Pillans, John

doi:10.1109/tie.2020.2982123

Cited by 13 publications

(3 citation statements)

References 18 publications

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“…10 Moreover, the stepper motor exhibits tiny vibrations between angular steps. 11 These vibrations translate to noise and could exaggerate the nonlinearity in the damper system. To overcome these limitations, Burton et al 12 developed a direct drive valve (DDV) system with a stepper motor.…”

Section: Introductionmentioning

confidence: 99%

Improved particle swarm optimisation tuned PID position control of voice coil semi-active electrohydraulic damper

Rajasekharan Unnithan,

Subramaniam,

Gunasekaran

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Control on the variable damping coefficients in the semi-active damper enhances ride comfort and vehicle stability. The semi-active electrohydraulic damper (SEH) presented in this study incorporates voice coil-based robust valve control to modify the damping coefficients. However, the position tracking accuracy of the voice coil actuator (VCA) gets negatively influenced by the nonlinearities such as load variations due to external disturbances, back emf, and dynamic damper characteristics. Therefore, to achieve excellent position control, a restart particle swarm optimisation with the Gompertz function (PSO-RG) is presented to obtain optimal tuning control gain for the proportional integral derivative controller. The PSO-RG algorithm applies Gompertz function-based particle coefficients and restarting technique. These techniques allow the PSO-RG to overcome the limitations of standard PSO, such as premature convergence and particle entrapment in local minima. The algorithm is tested in five selected benchmark functions for 10, 30 and 50 dimensions. The test data conveys that PSO-RG outperforms the standard PSO in mean, standard deviation, the best solution, and convergence speed. The transient response on identified and validated model of VCA demonstrated a 75.21% reduction in integral absolute error value than conventional PSO. The obtained maximum sensitivity and total variation values proved the robustness and smoothness of PSO-RG tuned PID control. Furthermore, the experimental analysis on the quarter car model shows that PSO-RG tuned PID precisely tracked the reference position with a 21.66% decrease in root mean square error to conventional PSO tuned PID. The CarSim co-simulation test results in the large van model indicate the need for precise VCA position control in enhancing ride comfort and improving the roll stability of the vehicle.

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Section: Introductionmentioning

confidence: 99%

Improved particle swarm optimisation tuned PID position control of voice coil semi-active electrohydraulic damper

Rajasekharan Unnithan,

Subramaniam,

Gunasekaran

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…An open-loop control using a hysteresis current control method, which is usually implemented by a digital controller with a high sampling frequency, has been proposed to reduce the position errors [14]. An FPGA may be suitable for implementing such a highsampling frequency digital controller [15].…”

Section: Introductionmentioning

confidence: 99%

Digital Control of a Stepping Motor for Eliminating Rotation Speed Fluctuations Using Adaptive Gains

et al. 2021

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Nowadays, stepping motors are usually used as precise actuators in various new scientific fields, such as syringe pumps, blood analyzers, and bio-3D printers. Controlling rotation of the stepping motor without speed fluctuation under no-load conditions plays an important role in improving the accuracy of the machine’s drive. This paper proposes a digital control method for a five-phase hybrid stepping motor. The proposed controller includes an original control loop and a PI adaptive integration gain control loop. The original digital control loop is redesigned from the analog controller by using the direct PIM method. The PI adaptive control loop is added to the original control loop in a parallel way to remove a steady deviation of the motor and suppress a physical saturation factor inside the plant. Lyapunov stability theory is used to prove a stability condition of the PI regulator gains. Experimental results show that the proposed controller can suppress the chattering caused by the switching structure and gives performances as good as that of the commercial analog controller in a high rotation speed range without fluctuation.

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“…Some improved control strategies have also presented in recent years. A nuclear step control strategy is proposed for a two-phase hybrid stepping motor [6,7]. Based on the traditional open-loop control of the stepper motor, the real-time rotor position feedback is introduced by detecting the nuclear step counter.…”

Section: Introductionmentioning

confidence: 99%

Research on a High‐Speed and Heavy‐Duty Closed‐Loop Drive System of a Two‐Phase Hybrid Stepping Motor Based on a Hybrid Controller

Zhou

Leng

Lü

et al. 2021

Wireless Communications and Mobile Computing

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Low load capacity and poor positioning accuracy of stepper motors in high-speed operation are currently two of the bottlenecks that limit their application in high-speed and heavy-duty drive applications. To solve this problem, a hybrid controller is proposed for the high-speed heavy-duty closed-loop stepper motor driving system, which includes two core contents. First, for the position control, a hybrid controller based on position error for open-loop/closed-loop automatic switching-combined spatial current given amplitude and angle automatic adjustment is proposed. Secondly, an advanced angle compensation strategy based on error-integrated feedforward is adopted to compensate for the electrical angle of the combined space current vector. To verify the effectiveness of the proposed method, theoretical analysis and system development as well as testing are carried out. Compared with the traditional open-loop drive system, results show that the maximum operating speed and maximum torque of the newly developed drive system based on the proposed method are improved by 50% and 81.25%, respectively. And at the same set speed and position, the response speed is faster and the accuracy of the steady-state process is higher. In the case of setting higher running speed and load torque, the drive system also maintains high-precision operation.

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Reducing Position Errors by Vibration Optimization of Stepper Motor Drive Waveforms

Cited by 13 publications

References 18 publications

Improved particle swarm optimisation tuned PID position control of voice coil semi-active electrohydraulic damper

Improved particle swarm optimisation tuned PID position control of voice coil semi-active electrohydraulic damper

Digital Control of a Stepping Motor for Eliminating Rotation Speed Fluctuations Using Adaptive Gains

Research on a High‐Speed and Heavy‐Duty Closed‐Loop Drive System of a Two‐Phase Hybrid Stepping Motor Based on a Hybrid Controller

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