Grid-Connected EV Fast Charger PLECS Simulation

Project Title: PLECS-Based Simulation of a Grid-Connected EV Fast Charger Using Voltage Source Inverter and Dual Active Bridge Project Description: This project focuses on the design and simulation of a grid-connected Electric Vehicle (EV) fast charging system using the PLECS simulation environment. The objective is to develop an efficient and well-controlled power conversion system by utilizing available "PLECS demo models", specifically the Three-Phase Voltage Source Inverter (VSI) and the Dual Active Bridge (DAB) DC-DC converter.(files will be provided) The system architecture consists of two primary power conversion stages. The first stage is an **AC/DC conversion stage** implemented using a three-phase, two-level Voltage Source Inverter connected to the grid. This converter is responsible for converting three-phase AC grid power into a regulated DC link voltage while maintaining stable operation, power quality, and proper synchronization with the grid. The second stage is a **DC/DC power conversion stage** based on a Dual Active Bridge converter. This stage regulates the DC link voltage and transfers energy to the EV battery at the required voltage and current levels. The DAB topology enables high efficiency, galvanic isolation, and bidirectional power flow capability, which makes it suitable for fast-charging applications. The service provider is required to use the **PLECS demo models** as the base platform and modify them to build a complete EV fast charger system. Proper implementation of both **AC/DC control** and **DC/DC control strategies** is essential to achieve optimized system performance, stable DC link regulation, and efficient power transfer to the EV battery. Special attention must be given to the control algorithms, modulation techniques, and system stability. The simulation should demonstrate accurate and well-behaved electrical waveforms, including: * Three-phase grid voltages (**Vabc**) * Three-phase grid currents (**Iabc**) * DC link voltage (**Vdc**) * DC current delivered to the load or battery (**Id**) * Gate pulses for the **two-level bridge converter** * Gate pulses for the **Dual Active Bridge switches** All waveforms must be clean, properly synchronized, and consistent with expected theoretical operation. The final simulation model should clearly illustrate the complete energy conversion process from the AC grid to the EV battery while demonstrating correct converter operation, control performance, and optimized power transfer. The completed PLECS simulation should serve as a reliable representation of a **grid-connected EV fast charging system**, suitable for academic research and performance analysis of modern EV charging infrastructure.

ID do Projeto: 40283569