Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage

  • I Nyoman Wahyu Satiawan University of Mataram, Indonesia
  • Ida Bagus Fery Citarsa University of Mataram, Indonesia
  • Warindi University of Mataram, Indonesia
  • I Ketut Wiryajati University of Mataram, Indonesia
  • Supriono University of Mataram, Indonesia
  • Ni Made Seniari University of Mataram, Indonesia
  • I Made Budi Suksmadana University of Mataram, Indonesia
Abstract viewed: 252 times
pdf downloaded: 168 times
Keywords: Dual-inverter fed, Modulation technique, Open-end winding, PWM


This paper investigates PWM method for the dual-inverter fed open end winding three-phase induction motor drives. This is aimed to improve the quality of the output voltage as well as to enhance the motor performance by solving the drawback of the PWM method. The proposed PWM method operates two inverters in different technique, i.e one inverter operates in square wave mode (slow switching) and one inverter in PWM mode (fast switching). Although the PWM method can improve the quality of the inverter output voltage over the two-level inverter output, the proposed PWM method causes an excessive ripple in both torque and stator current especially at the transient period. The drawback is solved by applying a new switching strategy that manage the inverter switches operate in turn between slow switching and fast switching in one circle of operation. The proposed method is verified via simulation. The result shows that the quality of output voltages improves for all modulation indices in comparison with two-level inverter. Furthermore, torque ripple is reduced, and current ripple are improved as the current waveform is enhanced to be more symmetrical.


A. F. Abouzeid, M. J. Guerrero, A. Endemario, “Muniategui, I., Ortega, D., Larrazabal, I., Briz, F., (2020), Control strategy for induction motors in railway traction applications,” Energies 2020, vol.13. no. 3, 2020.

M. Simsek, B. Bilgin, H. I., Adam, “A New Approach in Co-Simulation for Battery Electric Vehicle Modelling, Proc. The 11th International Conference on Electrical and Electronics Engineering (ELECO), Bursa, Turkey, 2019.

R.R. Kumar, K. Alok “Adoption of electric vehicle: A literature review and prospects for sustainability,” Journal of Cleaner Production, Vol, 253 No. 20, 2020.

N. Herath, P. Binduhewa; L. Samaranayake; J. Ekanayake; S. Longo, “Design of a dual energy storage power converter for a small electric vehicle,” Proc. IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka.

J. Loncarski, M. Leijon, C. Rossi;M. Srndovic, G. Grandi, “Current ripple evaluation in dual three-phase inverters for open-end winding EV drives,” Proc. International Conference on Connected Vehicles and Expo (ICCVE) , Vienna, Austria, 2014.

T. Kimura, T. Yamada, R. Kazaoka, T. Noguchi,” Control Method of a Dual Inverter System for EV with One Battery,” Proc. 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia), Himeji, Japan, 2022.

V.T. Somasekhar, K Gopakumar, A.V.T. Pittet, V.T. Ranganathan, A novel PWM inverter switching strategy for a dual two-level inverter fed open-end, Proc. 4th IEEE International Conference on Power Electronics and Drive Systems. IEEE PEDS 2001 - Indonesia. Proceedings (Cat. No.01TH8594), 2001.

K. Sivakumar, A., Das, R. Ramchand, C. Patel, K. Gopakumar, “A three level voltage space vector generation for open end winding IM using single voltage source driven dual two-level inverter, Proc. IEEE TENCON, 2009.

I K. Wiryajati, I. A. D. Giriantari, I N. Satya Kumara, Lie Jasa, “The performance analysis of dual-inverter three phase fed induction motor with open-end winding using various PWM schemes,” The 2018 International Conference on Smart Green Technology in Electrical and Information Systems (ICSGTEIS), Denpasar, 2018.

A. Kumar, D. Chatterjee, “A survey on space vector pulse width modulation technique for a two-level inverter’, Proc. National Power Electronics Conference (NPEC), Pune, India, 2017.

A. Ammar, A., Benakcha, A. Bourek, “Adaptive MRAC-based direct torque control with SVM for sensorless induction motor using adaptive observer,” The Int. Journal of Advanced Manufacturing Technology, Vol. 91, No. 5, pp. 1631 -1641, 2017.

How to Cite
I. N. W. Satiawan, “Improved Modulation Methods of the Dual-inverter Fed Open-end Winding Three-phase Motor Drives with Equal DC-link Voltage ”, IJEEPSE, vol. 5, no. 3, pp. 93-98, Nov. 2022.