Harmonic Phase Shifter for Discrete Amplitude Modulation Technique
| Autor: | Anas Lateef Mahmood, Mohammed Tofik Lazim |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | مجلة النهرين للعلوم الهندسية, Vol 13, Iss 1 (2010) |
| Druh dokumentu: | article |
| ISSN: | 2521-9154 2521-9162 |
| Popis: | In discrete amplitude modulation or integral-cycle control, subharmonic and higher order harmonic components are generated in the three phases of a three phase system. These harmonic components are found to be unbalanced in phase displacement. The correction of the unbalanced phase displacement angles of a particular subharmonic or higher order harmonic for this type of triggering is investigated to solve the limitation of use of this important type of control as a drive and many other industrial applications. The multiple of 2 phase shifting technique is used to correct unbalanced phase displacement angles produced in a three-phase system. A computer-based harmonic phase corrector is designed and tested with threephase resistive and induction motor loads. It is found that there is a well agreement between the theoretical and experimental results and it is believed that the major problems associated with the integral-cycle triggering mode with three-phase ci |
| Databáze: | Directory of Open Access Journals |
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