İndüksiyonlu Bir Isıtma Sisteminin Güç Kalitesi Parametrelerine Etkisi

Öz

Bu çalışma TI-6Al-4V bazlı malzemenin ısıl işlemi sırasında 900 kHz, 2.8 kW Ultra Yüksek Frekanslı İndüksiyon Isıtma Sisteminin (UHFIHS) Güç Kalitesi (PQ) parametrelerini belirlemek için yapılmıştır. Bu malzeme, endüstri uygulamalarında en önemli titanyum alaşımlarından biridir. İndüksiyon sisteminin tüm akım ve gerilim verileri, özel analog sensörlerle laboratuvar koşullarında toplanmış ve NI LabVIEWTM programı kullanılarak bilgisayara kaydedilmiştir. Toplanan veriler Ayrık Fourier Dönüşümü (DFT) ile analiz edilmiş ve cihazın çalışması sırasında güç kalitesi parametreleri üzerindeki etkisi incelenmiştir. DFT frekans spektrumu incelendiğinde, Periyot I ve Periyot II’de, 3. (150 Hz), 5. (250 Hz) ve 7. (350 Hz) harmonik bileşenlerin % 10'dan oldukça yüksek olduğu, diğerlerinin % 10'un altında olduğu görülmektedir. Periyot I, ısıtılacak numunenin 700 ° C sıcaklığa ulaşma sürecini ve periyot II, numunenin istenen sıcaklık seviyesine ulaşmasından sonraki süreci gösterir.

Anahtar Kelimeler

• Güç Kalitesi
• Harmonikler
• İndüksiyon Isıtma Sistemi
• Titanyum Alaşımlar
• Sinyal İşleme

The Effect of an Induction Heating System on Power Quality Parameters

Öz

This study was conducted to determine the Power Quality (PQ) parameters of 900 kHz, 2.8 kW Ultra High Frequency Induction Heating System (UHFIHS) during heat treatment of TI-6Al-4V based material. The material is one of the most important titanium alloys in the industry applications. All current and voltage data of the induction system are collected under laboratory conditions with special analog sensors and recorded to the computer by using NI LabVIEWTM program. The collected data are analyzed by Discrete Fourier Transform (DFT) and the effect of the device on power quality parameters during operation was examined. When the DFT frequency spectrum is analyzed, it is seen that the 3rd (150 Hz), 5th (250 Hz), and 7th (350 Hz) harmonic components are quite higher than 10 %, while the others are below 10 % in the Period I and Period II. Period I indicates the time until the sample to be heated reaches a temperature of 700 ° C and period II indicates the time after the sample has reached the desired temperature level.

Anahtar Kelimeler

• Power Quality
• Harmonics
• Induction Heating System
• Titanium Alloys
• Signal Processing

Kaynakça

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