College - Author 1
College of Engineering
Department - Author 1
Electrical Engineering Department
Degree Name - Author 1
BS in Electrical Engineering
College - Author 2
College of Engineering
Department - Author 2
Electrical Engineering Department
Degree - Author 2
BS in Electrical Engineering
College - Author 3
College of Engineering
Department - Author 3
Electrical Engineering Department
Degree - Author 3
BS in Electrical Engineering
Date
6-2025
Primary Advisor
Jason Poon, College of Engineering, Electrical Engineering Department
Abstract/Summary
This project focuses on the design and development of a bidirectional AC-DC rectification subsystem for a wind energy conversion system (WECS), tailored for the 2025 Collegiate Wind Competition. The subsystem is defined by its core inputs and outputs where it receives AC power from the wind turbine generator and delivers stable DC power to auxiliary electronics and variable loads. Conversely, the system can also accept DC power, such as from wall power, and output AC power to drive the permanent magnet synchronous machine (PMSM) as a motor, overcoming cogging torque and initiating turbine blade rotation. This bidirectional functionality is enabled by a MOSFET-based active rectification system using a six-switch power factor correction (PFC) topology, also referred to as a three-phase voltage-source inverter (VSI). Control inputs, including rotor position feedback and command signals, ensure precise operation and efficiency. An ESP32 microcontroller unit (MCU) oversees real-time monitoring of voltages, currents, and power flow while interfacing with other electrical subsystems, such as the point of common coupling (PCC) and DC-DC converters. This report serves as both a foundational guide for future Cal Poly Wind Power teams and an evaluation of active rectification’s impact on power efficiency through different operating modes of the MOSFETs.
URL: https://digitalcommons.calpoly.edu/eesp/676