A nearly constant switching frequency current hysteresis controller with generalized parabolic boundaries using 12-sided polygonal voltage space vectors for IM drives

Azeez, Najath Abdul and Dey, Anubrata and Mathew, K and Mathew, Jaison and Gopakumar, K (2012) A nearly constant switching frequency current hysteresis controller with generalized parabolic boundaries using 12-sided polygonal voltage space vectors for IM drives. In: 2012 XXth International Conference on Electrical Machines (ICEM), 2-5 Sept. 2012, Marseille.

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Abstract

In this paper, a current hysteresis controller with parabolic boundaries for a 12-sided polygonal voltage space vector inverter fed induction motor (IM) drive is proposed. Parabolic boundaries with generalized vector selection logic, valid for all sectors and rotational direction, is used in the proposed controller. The current error space phasor boundary is obtained by first studying the drive scheme with space vector based PWM (SVPWM) controller. Four parabolas are used to approximate this current error space phasor boundary. The system is then run with space phasor based hysteresis PWM controller by limiting the current error space vector (CESV) within the parabolic boundary. The proposed controller has simple controller implementation, nearly constant switching frequency, extended modulation range and fast dynamic response with smooth transition to the over modulation region.

Item Type:	Conference Paper
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Keywords:	Induction Motor Drives; 12-Sided Polygonal Voltage Space Vectors; Hysteresis PWM Control
Department/Centre:	Division of Electrical Sciences > Computer Science & Automation
Date Deposited:	29 Nov 2013 05:47
Last Modified:	29 Nov 2013 05:47
URI:	http://eprints.iisc.ac.in/id/eprint/47832

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