A Vehicle-to-Grid System for Controlling Parameters of Microgrid System

Area of Science:

• Electrical Engineering
• Renewable Energy Systems
• Smart Grids

Background:

• Large-scale adoption of hybrid electric vehicles necessitates robust power system solutions.
• The vehicle-to-grid (V2G) concept offers a distributed reserve for power systems.
• Microgrids require advanced control strategies to integrate diverse energy sources.

Purpose of the Study:

• To propose and analyze a V2G technology for microgrid frequency control over a 24-hour cycle.
• To evaluate the system's ability to manage energy and mitigate the variability of renewable energy sources.
• To assess the impact of V2G integration on microgrid stability and performance.

Main Methods:

• Modeling a microgrid simulating 2000 households with 400 electric vehicles (EVs) at a 1:5 ratio.
• Conducting in-depth analysis of voltage, current, reactive, and active power within the microgrid.
• Coordinating control of diesel generation, renewable energy source (RES) generation, power exchange, and EV generation.

Main Results:

• The proposed V2G system effectively controls microgrid frequency by regulating load demand.
• Energy management is enhanced, reducing the impact of uncertain and variable RES power generation.
• System parameter variations across different operating scenarios resulted in errors confined to less than 5%.

Conclusions:

• V2G technology provides an effective solution for microgrid frequency control and energy management.
• The integration of V2G enhances the stability and performance of microgrids with significant renewable energy penetration.
• The proposed control strategy demonstrates high accuracy and reliability for future power systems.