One Novel Soft-Starting Control Strategy for Induction Motor Based on Space Voltage Vectors

Xie, Shihong; Liang, Rongmao; Liang, Li; Yang, Zhihao; Gao, Xin

doi:10.2478/ijanmc-2022-0037

Abstract

This study presents a novel control strategy of discrete variable frequency (DVF) based on space voltage vectors for a three-phase induction motor (IM) soft-starting. The proposed strategy is developed in four steps. First, conducting states of the three-phase thyristor circuits are analysed, and the formation mechanism of space voltage vectors is also demonstrated. Then, DVF control strategy of IM based on hexagon flux linkage loci is expounded categorically, which contains frequency f/7 control, frequency f/4 control, frequency f/3 control and ramp voltage control. Next, under two-phase stationary coordinate system, stator flux equation of IM is derived, and the decrease in stator flux when zero-vector voltage working is calculated accurately. In the end, an experimental system of IM based on three-phase thyristor circuits is constructed, and the experimental results are dealt with and compared with the usual ramp voltage technique. The study results show that IM driven by the proposed strategy can steadily operate at the preset discrete frequency, and the effective value of starting current of IM can be decreased by nineteen percent. The experimental results verify the conclusions.

References

T. Veera, K. Vijit, K. Anantawat, Comparison of Starting Current Characteristics for Three-Phase nduction Motor Due to Phase-control SoftStarter and Asynchronous PWM AC Chopper,” Journal of Electronical Engineering & Technology, 2017, Vol.12, No.3, pp. 1090–1100, 2017.
Search in Google Scholar Back to article
X.Y. Li, J. Xu, H.P, Zhang. “Research on torque ramp current limit starting of induction motor based on dsPIC30F6014,” In Proc. of IEEE Inf. Tech. Net. Elec. Auto. Con., pp.1627–1630, Jan. 2018.
Search in Google Scholar Back to article
A. Nied, J. de Oliveira, R. de F. Campos, et al, “Soft Starting of Induction Motor With Torque Control,” IEEE Trans. Ind. App., Vol.46, No.3, pp.1002–1010, 2010.
Search in Google Scholar Back to article
Said A.D., Haitham Z.A., “Current limiting soft starter for three phase induction motor drive system using PWM AC chopper,” IET Power Electronics, Vol.10, No.11, 1298–1306, 2017.
Search in Google Scholar Back to article
Khan, M.M., Rana, A., D., Fei. “Improved ac/ac choppers-based voltage regulator designs,” IET Power Electronics, Vol.7, NO. 8, pp.1989–2000, 2014.
Search in Google Scholar Back to article
A. Ginart, R. Esteller, A Maduro, et al. “High starting torque for AC SCR controller,” IEEE Trans Energy Conversion, Vol.14, No.3, pp.553–559, 1999.
Search in Google Scholar Back to article
F. Zhou, J.L. Cao, J. Liu, et al. “Optimal switching phase and frequency splitting strategy of discrete frequency conversion soft starting control for asynchronous motor,” Electric Machines and Control, Vol.20, No.3, pp.13–19, 2016.
Search in Google Scholar Back to article
S.J. Deng, J. Chen, Q. Wang, et al. “A controller of Motor Discrete Variable Frequency Soft Starting and Harmonic Filtering,” 2nd Int. Conf. on Sensors, Measurement and Intelligent Materials, pp.1611–1614, Dec. 2013.
Search in Google Scholar Back to article
D.H., Li., X.B., Deng. “Research on Discrete Variable Frequency soft starting and electricity-economizing control system of induction motor,”Int. Conf. Electr. Inf. Control Eng., pp. 4391–4394, 2011.
Search in Google Scholar Back to article
J. Chen, Y.J. Meng, M.L. Duan, et al. “A Starting Method of Induction Motor with High Starting Torque,” Transaction of China Electrotechnical Society, Vol.32, No.9, pp. 32–39, 2017.
Search in Google Scholar Back to article
S.H. Xie, Y.J. Meng, J. Chen, et al. “Cause and improvement of the discrete variable frequency torque ripple of induction motor,” Electric Machines and Control, Vol.22, No.10, pp. 103–111, 2018,.
Search in Google Scholar Back to article
J. Tong, Z. Zhang, C.Y. Guo, “Study of power factor angle closed-loop control technology in soft-starter,” Electric Machines and Control, 17, (12), pp. 51–56, 2013.
Search in Google Scholar Back to article
K.Q. Zhao, D.G. Xu, Y. Wang, “New strategy to improve electromagnetic torque at starting in thyristor controlled induction motors,” The 29th Annual Conference of the IEEE Industrial Electronics Society, pp.2555–2560, Nov. 2003.
Search in Google Scholar Back to article
R. L. Gorbunov, G. I. Poskonnyy, “Symmetrical discrete frequency control for AC-chopper with mutual switching function,” International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices, EDM, pp. 353–358, Jul. 2014.
Search in Google Scholar Back to article
K Sundareswaran, P.S R Nayak, “Particle Swarm Optimisation Based Feedback Controller Design for Induction Motor Soft-Starting,” Australian Journal of Electrical and Electronics Engineering, Vol.11, No.1, pp. 55–63, 2014.
Search in Google Scholar Back to article
P. Srinivasa Rao Nayak, T.A. Rufzal, “Performance analysis of feedback controller design for induction motor soft-starting using bio-inspired algorithms,” Proc. IEEE Int. Conf. Power, Instrum., Control Comput., PICC, pp. 1–6, Jun. 2018.
Search in Google Scholar Back to article
Q.T. An, F. Yao, L.Z. Sun, L. Sun, “SVPWM Strategy of Dual Inverters and Zero-Sequence Voltage Suppression Method,” Proceedings of the CSEE, Vol.36, No.4, pp. 1042–1049, 2016.
Search in Google Scholar Back to article
H.Q. Zhang, X.S. Wang, P.F. Wang, et al, “Study on direct torque control algorithm based on space vector modulation,” Electric Machines and Control, Vol.16, No.6, pp. 13–18, 2012.
Search in Google Scholar Back to article

One Novel Soft-Starting Control Strategy for Induction Motor Based on Space Voltage Vectors

Abstract

Paradigm

My account