Reduction of Harmonic in phase-cutting Dimmers
نویسنده
چکیده
In this paper, we consider a designed and implemented dimmer. The dimmer is closed loop and phasecutting type. In fact, a microcontroller calculates and then regulates the firing delay angles of eight triacs. Depending on the firing angle, the harmonic distortion in the input current will not comply with international standards, such as IEC 61000-3-2(class C equipments). For solving this problem, eight harmonic compensators will be designed and added to the dimmer. So, the proposed dimmer has a little harmonic distortion in the input current whereas conventional phase-cutting dimmers are not so.
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Sensitivity and Removed THD of a Phase- Cutting Dimmer
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