دانلود مقاله ISI انگلیسی شماره 57983
عنوان فارسی مقاله

عملکرد کیفیت توان لامپ های کم وات ال ای دی با انرژی کارآمد

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
57983 2013 13 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Power quality performance of energy-efficient low-wattage LED lamps
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Measurement, Volume 46, Issue 10, December 2013, Pages 3783–3795

کلمات کلیدی
لامپ های ال ای دی - افت ولتاژ - منحنی تحمل ولتاژ؛ کیفیت توان
پیش نمایش مقاله
پیش نمایش مقاله عملکرد کیفیت توان لامپ های کم وات ال ای دی با انرژی کارآمد

چکیده انگلیسی

Light-emitting Diode (LED) lamps are more versatile and energy efficient compared with conventional light sources. This paper investigates two main problems related to power quality, namely, the harmonic generation from LED lamps and the effect of voltage sags on LED lamps. Laboratory tests on various LED lamps are conducted and the electrical characteristics of LED lamps are tapped under different conditions. Frequency domain analysis is then performed to investigate the generated harmonics. Then, voltage sag sensitivity analysis is performed by obtaining signals from a photo sensor, the different parts of a lamp ballast, and input voltage. The analysis includes the effects of varying sag depth and voltage sag duration. The findings are compared with the SEMI F47 standard curve, which predicts the effects of voltage sags on lamp performance. Experimental results show that the LED lamps produce a considerable amount of current harmonics. Moreover, different types of LED lamps were found to produce different levels of current harmonic depending on the ballast configuration. This harmonic distortion can be reduced by combining various types of LED lamps. Voltage sag tests show that all the tested lamps are sensitive to sag depth and sag duration.

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