Endüktans Seçim Kriteri ve Güç Elektroniği Uygulamaları için Tasarım Aşamaları

Year 2020, Volume: 24 Issue: 3, 689 - 695, 25.12.2020

Mustafa Sahin

https://doi.org/10.19113/sdufenbed.543986

Cited By: 1

Abstract

Güç elektroniği devreleri günümüzde yenilenebilir enerji uygulamaları ve enerji depolamak için kaçınılmaz aygıtlardır. Bu güç elektroniği devrelerinin ana elemanlarından biride endüktanstır. Endüktans bir canlının kalbi gibi çalışır, enerjiyi depolar ve çeviriciler de enerjiyi kaynaktan yüke doğru pompalar ve bu sayede yük devresine sürekli akım akışını sağlar. Bu yüzden iyi tasarlanmış bir endüktans çeviriciyi sürekli modda çalıştırmak için oldukça önemlidir ve böylece akım akışı kesintisiz olur. Bu çalışmada çeviriciyi sürekli modda çalıştırmak için gerekli bobin seçim kriteri literatürde incelenmiş ve sınır değer koşulu için kullanılan denklemler yardımıyla bulunmuştur. Yine gerekli denklemleri içeren tasarım aşamaları bir örnek uygulama ile gösterilmiştir. Çekirdek ve kabloların endüktans verimi üzerindeki etkisi de bu çalışmada incelenmiştir. Ferit çekirdek ve Litz teli kullanılan bir endüktans önerilmiş ve bir çevirici devresi için deneysel olarak tasarlanmıştır. Endüktans değerinin belirlenmesi için ölçümler gösterilmiştir. Ayrıca endüktans akım değişimleri yüksek frekanslar için araştırılmış, çeviricide kullanımı gösterilmiştir.

Keywords

Endüktans seçim ve tasarımı, Ferit çekirdekler ve litz teli, Endüktans deri olayı etkisi, Endüktans verimi, Güç elektroniği çeviricileri

Inductance Selection Criteria and Design Steps for Power Electronics Applications

Abstract

The power electronics circuits are indispensable devices today for renewable energy applications and for storing energy. One of the main components of this power electronic circuits is the inductance. The inductance working as a live heart, store the energy and pumps the energy from the source to the load in converters, and supply continuously the current of the circuit to the load. The energy efficiency in the system depends on the inductance efficiency. So, a well-designed inductance is very important in order to operate the converter in continuous mode so the current flow is uninterruptible. In this paper, inductance selection criteria for the converters are investigated to work the converter in continuous mode from the literature and solved for the limit value condition equation. Also, the design steps of an inductance including necessary calculations are shown with an example application. The cores and wires effect to the inductance efficiency is also investigated in this paper. An inductance using Ferrite core and Litz wire is proposed and designed experimentally for a converter circuit. Measurements to determine the inductance value was shown. Also, the inductance current variations for higher frequencies are investigated, and used in the converter is shown.

Keywords

Inductance selection and design, Ferrite cores and Litz wire, Skin effect in inductance, Inductance efficiency, Power electronics converters

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