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A Nearly Constant Switching Frequency Current Error Space Vector Based Hysteresis Controller for an IM Drive with 12-sided Polygonal Voltage Space Vectors
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| Author(s) |
Najath Abdul Azeez; Anubrata Dey; K. Mathew; Jaison Mathew; K. Gopakumar |
| Abstract |
In this paper, a current error space vector (CESV) based hysteresis controller for a 12-sided polygonal voltage space
vector inverter fed induction motor (IM) drive is proposed, for the first time. An open-end winding configuration is used
for the induction motor. The proposed controller uses parabolic boundary with generalized vector selection logic for all
sectors. The drive scheme is first studied with a space vector based PWM (SVPWM) control and from this the current
error space phasor boundary is obtained. This current error space phasor boundary is approximated with four parabolas and then the system is run with space phasor based hysteresis PWM controller by limiting the CESV within the parabolic boundary. The proposed controller has increased modulation range, absence of 5th and 7th order harmonics for the entire modulation range, nearly constant switching frequency, fast dynamic response with smooth transition to the over modulation region and a simple controller implementation. |
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| Filename: | Unnamed file |
| Filesize: | 1.292 MB |
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| Type |
Members Only |
| Date |
Last modified 2014-05-15 by System |
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