PDFAbstract: Speed sensorless vector control is the current trend in variable speed industrial AC drives due to its substantial energy efficiency and robustness. The existing Flux Oriented and/or Direct Torque Vector Control of Induction Motor need improvement in dynamic performance interms of ripple free torque and smooth flux operation. In this project a new scheme combining both flux and torque control is developed effectively and its performance during starting, steady state operation and dynamic load changing conditions is analysed by dynamic modeling of a typical three phase three level Voltage source inverter fed induction motor drive with an improved Flux-Torque-speed observer for Feedback in software simulation. The real time implementation of this new technique using DSPIC30F4011 Digital Signal Controller has been proved to be the smart alternative with performance enhancement while maintaining robustness and simplicity.
Keywords: Vector Control, Feedback Observer, VSI fed IM, Speed Sensorless drive, Space Vector Modulation (SVM). REFERENCES [1] K. Hasse. Drehzahlgelverfahren für schnelle umkehrantriebe mit stromrichtergespeisten asynchron-kurzschlusslaufer motoren. Reglungstechnik, 1972; vol. 20, pp. 60–66. [2] F. Blaschke. The principle of field-orientation as applied to the transvector closed-loop control system for rotating-field machines. Siemens Rev., 1972; vol. 34, pp. 217–220. [3] Depenbrock. M. Direct self-control (DSC) of inverter-fed induction machine. Power Electronics, IEEE Transactions on, Oct 1988; vol.3, no.4, pp.420, 429. [4] I. Takahashi and T. Noguchi. A new quickresponse and high efficiency control strategy of an induction motor. IEEE Trans. Ind. Appl., Sep./Oct.1986; vol. IA-22, no. 5, pp. 820–827. [5] Habib Kraiem and Lassaad Sbita. Sensorless Induction Motor Drive based on Deadbeat Torque and Flux Control. CEIT’13, 2013; vol.3, pp.169-173. [6] Buja. G. S and Kazmierkowski. M. P. Direct torque control of PWM inverter-fed AC Motors—A survey. IEEE Trans. Ind. Electron., Aug 2004; vol. 51, no. 4, pp. 744– 757. [7] H. Abu-rub1, d. Stando2_, and m.p. Kazmierkowski. Simple speed sensorless dtcsvm scheme for induction motor drives. Bulletin of the polish academy of sciences technical sciences, 2013; vol. 61, no. 2,
Cite this paper
Umamaheswari Rengasamy. (2017) Adaptive Intelligent Combined Vector Control scheme for Sensorless Induction Drive. International Journal of Power Systems, 2 , 57-64
Copyright © 2017 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0