PI kontrolcü tabanlı yeni bir kontrol yapısının yükseltici DA-DA çevirici için tasarımı

Year 2016, , 597 - 603, 02.09.2016

Faruk Yalçın

https://doi.org/10.16984/saufenbilder.47764

Abstract

Bu çalışmada, yükseltici tip DA-DA çeviricinin kontrolü için yeni bir yaklaşım önerilmiştir. Önerilen yaklaşımda PI kontrolcü tabanlı kontrol yapısını destekleyen, çevirici giriş gerilimi ve referans çevirici çıkış gerilimine dayalı açık çevrim kontrol kuralı geliştirilmiştir. Kontrol kuralı ile yükseltici DA-DA çevirici için açık çevrim PWM (Pulse Width Modulation – Darbe Genişlik Modülasyonu) anahtarlama oranı belirlenmiştir. Kontrol kuralı, klasik PI kontrolcüyü destekleyerek, istenen çevirici çıkış geriliminin farklı sistem parametrelerinde sağlıklı ve etkili bir şekilde elde edilmesini sağlamaktadır. Önerilen yaklaşım MATLAB-Simulink ortamında simülasyon olarak test edilmiştir. Elde edilen simülasyon sonuçları, önerilen yaklaşımın farklı giriş gerilimi, referans çıkış gerilimi ve yük şartlarında yükseltici DA-DA çevirici çıkış geriliminin kaliteli bir şekilde elde edilmesini sağladığını göstermiştir.

Keywords

yükseltici çevirici, DA-DA çevirici, PI kontrolcü, PWM

Design of a new PI controller based control structure for DC-DC boost converter

Abstract

In this paper, a new approach is proposed for control of DC-DC boost converter. In the proposed approach, open-loop control law based on the converter input voltage and the reference converter output voltage that supports the control structure based on PI controller is developed. Open loop PWM (Pulse Width Modulation) switching duty ratio is derived for the DC-DC boost converter by the control law. The control law provides to obtain the converter output voltage in a healthy and efficient manner with various system parameters through supporting the conventional PI controller. The proposed approach has been tested in MATLAB-Simulink environment as simulation. The obtained simulation results have shown that the proposed approach has provided to obtain high quality output voltage of the boost converter in different input voltage, reference output voltage and load conditions.

 

Keywords

boost converter, DC-DC converter, PI controller, PWM

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