Single-phase Boost-type Active Tracking AC-AC Voltage Regulator with an Improved Hybrid Control Technique

Year 2022, , 139 - 153, 31.01.2022

Faruk Yalçın , Felix Hımmelstoss

https://doi.org/10.29130/dubited.923414

Abstract

This paper presents a switch-mode single-phase boost-type AC-AC voltage regulator. The topology of the regulator needs only reduced numbers of components. Unlike the similar studies in the literature, a new hybrid control technique with a closed-loop PID controller and a novel developed feedforward controller is applied to the regulator that enhances the active tracking of the reference output voltage to obtain a higher quality of the sine-wave output voltage, when the input AC voltage is an ideal pure sine or including different harmonics levels. The proposed regulator with the proposed control technique is tested both by simulation and experimentally. The experimental set-up for the regulator is designed for 0.75 kW output power, 0-100 Vp input voltage (50 Hz), and 0-200 Vp output voltage. The results have shown that the proposed switch-mode boost type regulator is capable of obtaining the desired AC voltage with harmonics lower than 5% THD (total harmonic distortion) for different input/output parameters and different load conditions.

Keywords

Boost converter, AC-AC regulator, Single-phase, Active tracking, Harmonics

Thanks

The topology and control theory of the proposed AC regulator in the study are patented by the co-author in Austrian Patent Office as “Aktive Netzfilter” (patent no: AT 505460 B1, filed 10.07.2007, applied 15.06.2012).

İyilişetirilmiş Hibrit Kontrol Tekniği ile Tek Faz Yükseltici Tip Aktif İzleyen AA-AA Gerilim Regülatörü

Abstract

Bu çalışmada anahtarlamalı mod tek faz yükseltici tip bir AA-AA gerilim regülatörü sunulmuştur. Literatürdeki benzer çalışmalardan farklı olarak, çıkışta yüksek kalitede sinüs formunda gerilim elde edebilmek için referans çıkış geriliminin takibini iyileştiren yeni bir hibrit kontrol tekniği regülatör çalışmasını kontrol için uygulanmıştır. Bu hibrit kontrol tekniğinde, kapalı çevrim PID kontrol yöntemi yeni geliştirilen ileri beslemeli açık çevrim kontrolcü ile desteklenmiştir. Önerilen çevirici ile önerilen kontrol tekniği hem simülasyon olarak hem de deneysel olarak test edilmiştir. Elde edilen sonuçlar, önerilen regülatörün farklı çalışma çalışma şartlarında üstünlüğünü göstermiştir.

Keywords

Yükseltici çevirici, AA-AA regülatörü, Tek faz, Aktif izleyen, Harmonik

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