دانلود مقاله ISI طرح PWM با موقعیت پالس تصادفی‌شده بصورت مجزای دو فاز با مشخصه‌های نویز کلیدزنی کم

عنوان انگلیسی مقاله:
 A Two-Phase Separately Randomized Pulse Position PWM (SRP-PWM) Scheme With Low Switching Noise Characteristics Over the Entire Modulation Index

ترجمه فارسی عنوان مقاله:
یک طرح PWM با موقعیت پالس تصادفی‌شده بصورت مجزای (SRP-PWM) دو فاز بهمراه مشخصه‌های نویز کلیدزنی کم در کل ضریب مدولاسیون

چکیده انگلیسی مقاله:
Abstract—This paper describes a two-phase separately randomized pulse position pulsewidth modulation scheme that can obtain the randomization effect on the switching noise spectra over the entire modulation index (M) range. In the proposed scheme, the zero vector is selected as V(1 1 1) when M ≥ 0.7 and as V(0 0 0) when M < 0.7. For the validity of the proposed method, a 16-bit microcontroller SAB-C167 was used and the experiments were per- formed on a 1.5-kW three-phase induction motor which is coupled an eddy current brake load. The switching noise was measured in the anechoic room using a RION SA-01. Experiment results were measured at a distance of 0.15 m away from the side of induction motor. The experimental results show that the harmonic spectra spread over a wideband area, and the switching noise for all the M is reduced by the proposed method. Index Terms—Critical modulation index, dual zero vector, randomization effect, reduction of switching noise spectra, twophase separately randomized pulse posit on pulsewidth modulation (SRP-PWM).

منتشر کننده مقاله: IEEE

سال انتشار مقاله: 2012
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قیمت: فقط 3,000 تومان
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فرمت: pdf
تعداد صفحات/اسلاید: 8