The Steady State Precision Control of DC Linear Motor Based on State Observer and Feedback

Abstract:

This paper proposes a guarantee steady state observation precision and pole assignment precision of the feedback controller, the basic idea is to introduce state observer can easily get dc linear motor speed and acceleration condition, state space pole assignment can pass, select the appropriate zero pole can improve the control performance of the motor. Based on the observation of the gain matrix can compensate for the steady-state error of the dc linear motor. Based on the observation of the gain matrix can compensate for the steady-state error of the dc linear motor. Matlab simulation results show that the control algorithm is compared with the traditional pole assignment, it is able to quickly and accurately follow the speed of the motor. The system has better dynamic and steady-state performance, and its characteristic of the closed-loop system robustness is stronger.

• Periodical: Applied Mechanics and Materials (Volumes 511-512)
• Pages: 1058-1062
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.511-512.1058
• Online since: February 2014
• Authors: Shuai Zhang, Hai Rui Wang*, Jin Huang, He Liu
• Keywords: DC Linear Motor, State Observer, State Space Pole Assignment, Steady State Precision

References

[1] Wang Shuhonh, Xiong Guangyu, Analyses of Permanent Magnet Linear Snchronous Motor and Validated by FEM [J]. Electric Machines and Control, 15 (7): 8-13. (2011).

[2] A. Basak, F. J Anai. A DC LINEAR MOTOR WITH A SQUARE ARMATURE[C]. IEEE Transactions on Energy Conversion, 10(3): 462-469. (1995).

DOI: 10.1109/60.464869

[3] Zhang Guozhu, Chen Jie, Li Zhiping, Adaptive Fuzzy Friction Compensation for Linear Motor Servo Systems [J]. Electric Machines and Control, 13 (1): 154-160. (2009).

DOI: 10.1109/chicc.2008.4605466

[4] Li Yiqiang, Zhou Huixing, Wang Xiankui, etc. Robust Time-Optimal Control of a Linear Motor Positioning System [J]. Electric Machines and Control, 15 (3): 13-18. (2011).