يک روش جديد براي کاهش ريپل ولتاژ DC توسط فيلتر فعال
محورهای موضوعی : مهندسی برق و کامپیوترسیدمحمد دهقان دهنوی 1 , علی یزدیان ورجانی 2 , مصطفی محمدیان 3
1 - دانشگاه تربیت مدرس
2 - دانشگاه تربیت مدرس
3 - دانشگاه تربیت مدرس
کلید واژه: حذف نویز فعالريپل ولتاژشبکه DCفيلتر فعال قدرت,
چکیده مقاله :
وجود نوسانات و ريپل ولتاژ و جريان در شبکه‌هاي DC باعث عملکرد نادرست سيستم‌هاي تغذيه‌شونده توسط اين شبکه‌ها مي‌شوند، بنابراين کاهش ريپل ولتاژ و جريان در شبکه‌های DC از اهميت بالايي برخوردار است. در اين مقاله يک روش نوين براي حذف ريپل ولتاژ DC در سيستم‌هاي توان بالا، با استفاده از فيلتر فعال حذف نويز قدرت APNCF به همراه فيلتر ايستا ارائه گرديده است. در اين روش از يک سيستم ترکيبي شامل فيلتر فعال سري براي کاهش ريپل ولتاژ بار و فيلتر فعال موازي براي کاهش ريپل جريان در طرف منبع، به همراه فيلتر ايستا استفاده شده است. نتايج شبيه‌سازي و آزمايشگاهي درستي عملکرد روش پيشنهادي را در شرايط ماندگار و گذرا نشان مي‌دهند.
Fluctuations and ripples in voltage or current of DC power systems cause different malfunctions in operation of equipments and systems which are supplied by low quality distribution power systems. Therefore ripple reduction of voltage or current in DC power systems is very important. In this paper a new method is proposed to reduce ripple of DC voltage in high power system using an active power noise cancellation filter (APNCF). In the proposed method a hybrid system including series and parallel active filters for ripple reduction of load voltage and source current is used. Simulation and experimental results show the performance of the proposed method in dynamic and static states.
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