Parametric Modelling of Interleaved Resonant DC — DC Converter with Common Secondary Rectifier Circuit for xEV Charging Applications
Rajanand Patnaik Narasipuram, Subbarao Mopidevi
Abstract
The moto of this paper is to provide a parametric modelling and step by step procedure for 3.3 kW interleaved-inductor-inductor-inductor-capacitor (iL2C) resonant full bridge converter for electric charging applications using common rectifier circuit. The interleaving technique is utilized in this paper to achieve high power density, improve the current and load sharing. To achieve the controlling aspects of converter a hybrid control technique has been designed called variable frequency+phase shift modulation (VFPSM) technique. The simulations are performed at light load condition which is 10% of full load i.e., 330 W, at variable input voltages from 300 Yin to 500 Yin and 500 Yin to 300 Yin-48 Vo and also at rated voltage of 400 Yin - 48 Y0. The steady-state and transient performances are presented with dynamic responses.