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Control For PWM AC Chopper Feeding Nonlinear Loads
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| Author(s) |
Fateh Krim, Lazhar Rahmani, Abdelouahab Bouafia |
| Abstract |
This paper presents a novel robust control technique
for PWM ac choppers with ability of generating high quality
sinusoidal waveforms with adjustable amplitudes over a wide
range control. For this purpose a deadbeat based digital
controller has been developed to perform tight closed-loop
control of the ac chopper. This controller is based on
generalized predictive control (GPC) approach. A dedicated
control algorithm has been developed and implemented. The
proposed controller presents the advantages of allowing a very
fast transient response and compensating effectively load
disturbance and non-linear loads effects. Computer simulations
are performed to investigate the proposed controller
performance. The simulation results show that the designed
controller has a good dynamic behaviour, a good rejection of
impact load disturbance and is very robust. To evaluate the
proposed approach an experimental prototype has been
constructed. Experimental results under various loading
conditions have demonstrated that the system performs well. |
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| Filename: | A33234 |
| Filesize: | 239.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-02-16 by System |
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