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http://dx.doi.org/10.6113/JPE.2010.10.4.374

A Novel Pulse-Width and Amplitude Modulation (PWAM) Control Strategy for Power Converters  

Ghoreishy, Hoda (Dept. of Computer and Electrical Engineering, Tarbiat Modares University)
Varjani, Ali Yazdian (Dept. of Computer and Electrical Engineering, Tarbiat Modares University)
Farhangi, Shahrokh (Dept. of Computer and Electrical Engineering, Tehran University)
Mohamadian, Mustafa (Dept. of Computer and Electrical Engineering, Tarbiat Modares University)
Publication Information
Journal of Power Electronics / v.10, no.4, 2010 , pp. 374-381 More about this Journal
Abstract
Typical power electronic converters employ only pulse width modulation (PWM) to generate specific switching patterns. In this paper, a novel control strategy combining both pulse-width and amplitude modulation strategies (PWAM) has been proposed for power converters. The Pulse Amplitude Modulation (PAM), used in communication systems, has been applied to power electronic converters. This increases the degrees of freedom in eliminating or mitigating harmonics when compared to the conventional PWM strategies. The role of PAM in the novel PWAM strategy is based on the control of the converter's dc sources values. Software implementation of the conventional PWM and the PWAM control strategies has been applied to a five-level inverter for mitigating selective harmonics. Results show the superiority of the proposed strategy from the THD point of view along with a reduction in the inverter power dissipation.
Keywords
Multilevel inverters; PAM; PWAM; PWM; Selective harmonic mitigation; Total harmonic distortion;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 0  (Related Records In Web of Science)
Times Cited By SCOPUS : 3
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