شماره ركورد كنفرانس :
5060
عنوان مقاله :
A new single-switch soft-switched high-step up DC-DC converter based on magnetic coupling
Author/Authors :
Amirhossein، Maroufkhani lectrical Engineering department - Khajeh Nasir Toosi University of Technology (KNTU)، Tehran, Iran , Danial، Kazemi Kia lectrical Engineering department - Khajeh Nasir Toosi University of Technology (KNTU)، Tehran, Iran , Karim، Abbaszadeh lectrical Engineering department - Khajeh Nasir Toosi University of Technology (KNTU)، Tehran, Iran
كليدواژه :
reduced voltage stress , soft-switching , high-step-up , coupled-inductor
عنوان كنفرانس :
11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
A novel non-isolated single-switch high gain DC-DC converter is presented in this paper. To achieve high voltage gain without using a large duty cycle, it uses a coupled-inductor with three windings, a resonant capacitor, and voltage multiplier cells. This simple topology takes advantage of only one active switch with reduced voltage stress, continuous input current, high step-up voltage gain, and high efficiency. Not only is a high voltage gain achieved but also the voltage stress of all components is reduced. Also, a passive voltage clamp is used to recover the energy stored in the leakage inductor of the coupled inductor in addition to reduce the voltage stress of the active switch. In this topology, below resonance operation mode is utilized in order to achieve higher efficiency in comparison with other high step-up dc-dc converters. All the operating principles of this converter are studied to find the voltage gain and the voltage stress equations in CCM mode and steady-state. To show that the proposed converter is more beneficial than the ones designed before, their main characteristics are compared. Finally, to prove the operation of the design, the simulation results of a 30V/400V 200W converter are presented.
