دانلود مقاله ISI مبدل AC/AC شبهه منبع امپدانسی تکفاز اصلاح شده

عنوان انگلیسی مقاله:
A Modified Single-Phase Quasi-Z-Source AC–AC Converter

ترجمه فارسی عنوان مقاله:
مبدل AC/AC شبه منبع امپدانسی تکفاز اصلاحشده

چکیده انگلیسی مقاله:
A modified single-phase quasi-Z-source ac–ac con-verter is proposed in this paper. The proposed converter has the main features in that the output voltage can be bucked or boosted and be both in-phase and out-of-phase with the input voltage. The input voltage and output voltage share the same ground, the size of a converter is reduced, and it operates in a continuous current mode. A safe-commutation strategy for the modified single-phase quasi-Z-source ac–ac converter is used instead of a snubber circuit. The operating principles and a steady-state analysis are presented. A laboratory prototype, tested using a resistive load, a passive load, and a nonlinear load, was constructed that used an input voltage of 70 Vrm s/60 Hz in order to verify the performance of the modi-fied single-phase quasi-Z-source ac–ac converter. The experimental results verified that the converter has a lower input current total harmonic distortion, a higher input power factor, and a higher effi-ciency in comparison to a conventional single-phase Z-source ac–ac converter. In addition, the experimental results show that the use of the safe-commutation strategy is a significant improvement, as it makes it possible to avoid voltage spikes on the switches.

منتشر کننده مقاله: IEEE

سال انتشار مقاله: 2012
متن این مقاله به زبان انگلیسی می باشد.

قیمت: فقط 3,000 تومان
خرید و دانلود فوری
سایز: MB 1
فرمت: pdf
تعداد صفحات/اسلاید: 10