شماره ركورد كنفرانس :
5060
عنوان مقاله :
A New Ultra High Step-Up Converter with Continuous Input Current for Renewable Energy Applications
Author/Authors :
Mahmoodreza، Eskandarpour Azizkandi Center of Excellence for Power Systems Automation and Operation - Department of Electrical Engineering - Iran University of Science and Technology, Tehran, Iran , Davood، Arab Khaburi Center of Excellence for Power Systems Automation and Operation - Department of Electrical Engineering - Iran University of Science and Technology, Tehran, Iran , Mohsen ، Kalantar Center of Excellence for Power Systems Automation and Operation - Department of Electrical Engineering - Iran University of Science and Technology, Tehran, Iran
كليدواژه :
DC-DC converter , Coupled inductor , Continuous input current , Low voltage stress , Single switch
عنوان كنفرانس :
11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
This paper proposes a new single-switch high step-up DC-DC converter, combines voltage multiplier cell (VMC), and a coupled-inductor (CL) to obtain an ultra-large voltage gain. Turn ratio of CL and duty cycle together determine the converter voltage conversion ratio, so it can obtain any wanted voltage without the converter to operate at the inappropriate duty cycles. With the utilization of the clamp circuit in the converter, the voltage spikes across the switch are declined remarkably. So, we can select switch with lower RDS(on) and voltage rating which declines conduction losses and reduce costs. Moreover, the energy of the CL leakage inductance is recycled which increases the efficiency of the converter. The input current ripple of the suggested topology is very low which is a very important factor for renewable energy systems such as PVs. The presented topology steady-state analysis and operation principle are expressed completely in this paper. Also, the superiority of the suggested topology is demonstrated over several similar most important recently presented DC-DC converters in the comparison study. Eventually, the validity of theoretical analysis is verified using simulation results of the converter with a power rating of 300 W and an output voltage of 404 V.
