Analysis, Design, and Implementation of an MPWM Interleaved DC–DC Converter With Voltage Doubler for EV Charging
Kirti Mathuria, Harpal Tiwari
Abstract
This paper provides the modified pulse width modulation (MPWM) gating approach established in an interleaved DC-DC converter made of inductor-capacitor (LC) components and including a voltage doubler at the secondary. The MPWM technique is used in an LC-based DC-DC converter. To accomplish ZVS for various battery charges, typical resonant converters contain intricate circuits for circuit synchronisation with frequency. The suggested interleaved LC converter with MPWM can achieve ZVS across a broad load range. All the advantages of the traditional approaches remain when the LC converter is operated using MPWM. The disadvantages of resonant converters, such as their complicated designs, inability to handle high energy and low voltage applications, ripple count, voltage ripple across the capacitor, and variable switching frequency, are also lessened by this technique. A high-frequency transformer is built to work over a broad range of frequency variations. An experimental prototype with 540 W and 80 kHz is also created to verify the modelling findings. The TMS320F28379D DSP controller provides the converter with real-time gating signals to facilitate its operation.