Desain dan Implementasi Bidirectional Cuk Konverter untuk Aplikasi Charging Station

Konverter DC-DC banyak dipakai dalam pembangkit listrik tenaga surya sebagai pengisi baterai pada charging station. Agar umur baterainya panjang maka konverter DC-DC harus mempunyai riak sekecil mungkin. Selain itu konverter DC-DC yang digunakan harus mempunyai efisiensi setinggi mungkin. Konverter DC-DC jenis boost memiliki penguatan yang tinggi. Sayangnya konverter DC-DC jenis boost mempunyai riak arus keluaran yang besar. Dalam tugas akhir ini, dilakukan desain dan implementasi modifikasi konverter DC-DC bidirectional jenis Cuk yang mempunyai arus masukan dan keluaran dengan riak yang rendah. Dengan mengambil terminal tegangan keluaran yang baru, maka konverter ini mempunyai penguatan yang tinggi seperti halnya konverter boost. Metoda analisis tegangan keluaran, riak arus induktor, dan riak arus kapasitor telah dilakukan. Metoda analisis yang dibuat telah diverifikasi lewat simulasi dan percobaan. Konverter ini juga sudah diuji kemampuan bidirectionalnya. Sehingga konverter hasil modifikasi konverter Cuk ini cocok digunakan untuk aplikasi charging station. ======================================================================================== DC - DC converters are widely used in battery charging station systems. In order to ensure the long ca pacitor and battery life , the DC - DC converter should have minimum input and output current ripples. Moreover, the DC - DC converter should have maximum efficiency . Boost DC - DC converter has a high voltage gain and low input ripple . Unfortunately the boost DC - DC converter ha s a large output current ripple. In this final project , design and implementation of modified bidirectional DC - DC converter type Cuk has low input and output current with low ripple. By taking the new output voltage terminal, this convert er has a high gain as well as the boost converter. The output voltage analysis method, the inductor current ripple, and the ripple current of the capacitor have been perfor med. The method of analysis has been verified by simulation and experiment. This con verter has also tested its bidirec tional ability. So this modified converter is suitable for charging station applications

A Control Method for Modified Bidirectional Cuk DC-DC Converter

A control method for a modified bidirectional Cuk DC-DC converter is proposed in this paper. The proposed controller is a double control loop consisting of an inner current control loop and a voltage control loop is used to control the converter. The small-signals model that is useful in designing controllers is derived in this paper. A simple PI controller is used for both controllers. The simulation and experimental results are included in this paper to validate the performance of the proposed controller