Journal of Engineering Sciences

Author(s): Onyeka E. B.^1*, Chidiebere M.², Nkiruka A. P.²

Affiliation(s): 
¹ Department of Electronic Engineering, University of Nigeria, Nsukka, Nigeria;
² Department of Electrical and Electronic Engineering, C. O. Ojukwu University, P.M.B.02 Uli, Nigeria

^*Corresponding Author’s Address: [email protected]

Issue: Volume 6; Issue 1 (2019)

Dates:
Paper received: October 10, 2018
The final version of the paper received: December 8, 2018
Paper accepted online: December 11, 2018

Citation:
Onyeka, E. B., Chidiebere, M., Nkiruka, A. P. (2019). Improved response performance of two-phase hybrid stepping motor control using PID tuned outer and inner loop compensators. Journal of Engineering Sciences, Vol. 6(1), pp. D1-D6, doi: 10.21272/jes.2019.6(1).d1

DOI: 10.21272/jes.2019.6(1).d1

Research Area: MECHANICAL ENGINEERING: Dynamics and Strength of Machines

Abstract. This paper has presented improved response performance of two-phase hybrid stepping motor control using proportional integral and derivative (PID) tuned outer and inner loop compensators. It is desired to improve the response performance tracking of a two-phase hybrid stepper motor to achieved overshoot less than 5 %, settling time less than 0.16 s, and rise time less then 0.02 with 2 % criterion. To achieve the objective of the study, a dynamic model of a two-phase hybrid stepper motor was obtained in the form of a transfer function. A robust PID tuning technique was adopted using the single input single output (SISO) Graphic User Interface (GUI) of the design task of the Control and Estimation Tool Manager (CETM) of MATLAB software in designing the compensators. A single compensator was designed and added to control loop of a two-phase hybrid stepping motor to improve the response performance. Simulation was performed in MATLAB and an overshoot of 8 % with the single loop compensator. However, the overshoot of the system requires further improvement. A new control loop was proposed using two-compensator loop structure. The outer loop and inner loop compensators were designed and added to the two-phase hybrid stepper motor control. Simulation was performed in MATLAB and the result obtained showed that with the two-compensator loop structure, the overshoot was greatly reduced to 2.6 % with rise time of 12 ms and settling time 11 ms. This indicates that the response tracking performance of the system has been improved by the combined outer and inner loop compensators.

Keywords: compensator, control loop, graphic user interface, proportional integral and derivative, PID tuning.

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