Abstract : This paper proposed a new high-voltage gain resonant switched-capacitor dc-dc converter for high-power offshore wind energy systems. The proposed new dc-dc converter is characterized by the resonant switching transitions to achieve minimal switching losses and maximum system effi ciency. Here, the converter operates at fi fteen times as high as the input voltage with a small device c...

This paper presents the functions of Series-Loaded Resonant Converter (SLRC). Series Loaded Resonant DC-DC converter is a type of soft-switching topology widely known for providing improved efficiency. Zero voltage switching (ZVS) buck converter is more preferable over hard switched buck converter for low power, high frequency DC-DC conversion applications. Zero Voltage switching techniques wil...

This paper presents dual-switch Quasi-Resonant (QR) flyback topology as a cost effective and reliable alternative to the LLC resonant converter for energy efficiency regulation. The proposed topology shows excellent efficiency performance, while maintaining simple design of the conventional flyback converters. It offers higher efficiency than LLC resonant converter at medium and light load, res...

A modified LLC-T (inductor inductor capacitor) series parallel resonant converter (SPRC) has been simulated and the performance is analyzed. The limitations of two element resonant topologies have been removed by adding a third reactive element. The output voltage is regulated using fuzzy logic controller. The simulation study indicates the superiority of fuzzy control over the conventional con...

This paper proposes a new resonant gate driver circuit for a soft switching synchronous buck converter in a fixed load condition. The switching energy can be fully recovered during current commutation phase in the gate driver while the diode conduction losses in the low and high side switches can be substantially reduced by employing additional L and C resonant in the circuit. Using PSpice simu...

Among the many advantages that resonant power conversion has over conventionally adopted pulsewidth modulation include a low electromagnetic interference, low switching losses, small volume, and light weight of components due to a high switching frequency, high efficiency, and low reverse recovery losses in diodes owing to a low di/dt at switching instant. This work presents a novel loaded-reso...

Renewable energy generation systems, based on photovoltaic sources, currently represent the most suitable solution, for low power levels, to reduce the energy consumption produced by oil and gas. Moreover, they are becoming more and more attractive as the price per watt of the photovoltaic modules is decreasing. However, the conversion efficiency of commercial photovoltaic modules is still rath...

In this paper, Series-Parallel LLC type of DC DC resonant power converter configuration that uses a Compression Network (CN) has been proposed. The purpose of this CN is to maintain desired current waveform over entire range of voltage operating condition. The proposed circuit maintains high efficiency over wide range of power level. Also, the closed loop PI and fuzzy controller is used on the ...

The series-parallel resonant converter and its magnetic components are analysed by extended fundamental frequency techniques. The proposed model allows an easy design of the resonant circuit and the integrated transformer and the calculation of the losses of all components of the converter. The purpose of the presented analytic model is an optimisation of the converter system – minimising eithe...

A new methodology for developing average models of resonant converters is presented and verified against cycle by cycle simulation. The proposed model ing approach applies the concept of Rac(t) which represent the instantaneous effective load of the resonant network. Unlike the treatment given in previous studies, the value of Rac is evaluated here dynamically as a function of the temporal low-...