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-...

This paper deals with speed control of DC drive fed from parallel QRC. In this work the GA optimization technique is successfully applied for speed control of QRC fed DC drive. In general PI controllers are used as conventional feedback controllers but the advent of Fuzzy logic controllers (FLC) enhances the effectiveness of control. In addition the drive fed from Zero current switching Quasi-r...

This paper represents a modified LCL-T (inductor inductor capacitor) series parallel resonant converter (SPRC) has been mathematically modeled and validated. The limitations of two element resonant topologies have been removed by adding a third reactive element. The study indicates the mathematical modeling and design of LCL-T SPRC. The proposed approach is expected to provide better voltage re...

In the energy distribution grid of electric vehicles (EVs), multiple different voltage potentials need to be interconnected, allow arbitrary power flow between various sources and electrical loads. However, potentials, galvanic isolation is absolutely necessary, either due safety reasons and/or grounding schemes. This paper presents an isolated three-port DC/DC converter topology, which, in com...