@article { author = {Akhbari, Mahdi and Amiri, pouya and Nilsaz, Mohamad}, title = {An Efficient High-Step-Up Soft-Switching Boost Converter for Photovoltaic Application}, journal = {Journal of Electric Power & Energy Conversion Systems}, volume = {1}, number = {3}, pages = {85-91}, year = {2016}, publisher = {Shahed University}, issn = {2345-4830}, eissn = {2345-4733}, doi = {}, abstract = {In this paper an efficient high step-up converter with a coupled- inductor with soft- switching operation is presented. The proposed topology includes a coupled-inductor boost converter for raising the voltage gain. Moreover, a simple auxiliary resonant circuit composed of an auxiliary switch, a clamping diode and a resonant tank (inductor, capacitor), is adopted in this paper. The coupled-inductor boost converter presents poor efficiency because of hard switching and switch losses. All switches in the adopted circuit perform zero-current switching at turn-on, and zero-voltage switching at turn-off. This soft-switching operation reduces the switching losses and diode reverse-recovery problems. The converter uses PWM method for switching and it is controlled by a PI controller to improve its dynamic output response. The paper presents detailed analysis of the converter operational modes. A 225W dc-dc converter used in PV application is designed and evaluated by simulations. The results are presented to confirm the theoretical analysis.}, keywords = {Boost converter,High-step-up Converter,Coupled-inductor,Soft-switching}, url = {https://jepecs.shahed.ac.ir/article_762.html}, eprint = {https://jepecs.shahed.ac.ir/article_762_6c3507c818bc7c71f4ec4fc8a3fd047f.pdf} }