The Complex Coefficient PI Controller is Developed and Implemented in the Communication Protocol Between the Power Station System and the Vehicle Bus

With the development of smart grids, the Internet of Vehicles has become a hot research topic. The article mainly explores the use of V2G charging and discharging systems to achieve the charging and discharging of electric vehicles. During charging and deflation, the vehicle and charging and deflation system must achieve real-time data exchange through communication protocols. On this basis, based on CAN (Control Local Network) 2.0B, develop a CAN bus application layer suitable for China, and develop a V2G charging/discharging communication protocol suitable for China's national conditions. On this basis, experimental verification was conducted on the designed communication protocol to ensure information exchange during charging and discharging.