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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nigim, K.A. Heydt, G.T. |
| Copyright Year | 2003 |
| Description | Author affiliation: Waterloo Univ., Ont., Canada (Nigim, K.A.) |
| Abstract | Many AC-to-AC single-phase controllers generate low sub-frequency harmonic that causes flickers and requires large filters. Shifting the harmonic frequency to a higher location from the fundamental will result in smaller and cheaper filtering element. Harmonic frequency can be shifted to high frequency location by using pulse width modulation. The PWM control the switching of the power device incorporated in the AC-to-AC conversion circuit. Using specified PWM pattern, the fundamental component can be controlled with the switching harmonics generated at higher than the fundamental frequency. The first harmonic is located at a frequency that depends on the switching frequency of the controlling devices. The paper presents simple pulse modulated controllers that control the switching instants of AC-to-AC single-phase controller to produce continuous variable AC voltage with easy to filter harmonic. The PWM controller replaces the phase control technique that normally employed in many ac electronic regulators used in heaters, light dimmers and the control of many single-phase fractional horsepower motors. |
| Starting Page | 355 |
| Ending Page | 358 |
| File Size | 236366 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780377818 |
| ISSN | 08407789 |
| DOI | 10.1109/CCECE.2003.1226414 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-05-04 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Phase control Pulse width modulation Power harmonic filters Electric variables control Frequency Voltage control Space vector pulse width modulation Lighting control Temperature control Filtering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Hardware and Architecture |
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