Electric vehicle power and signal multiplexing using cascaded inverters

Abstract

Transmission of communication signals across power electronic circuits is the focus of power & signal multiplex transmission (P&SMT). The electric motor, vehicle dynamics, and their respective controls are all part of the proposed model. Differential equations are used to explain the mathematical model of the DC/DC buck-boost converter when it is in both the boost and buck zones of operation. The proportional-integral regulator is used in the development and implementation of the control system. The typical electric vehicle (EV) communication system is more expensive to wire than the one suggested here since the proposed technique allows communication signals to be transmitted without requiring a Controller Area Network bus. In EVs, the proposed system can control motor speed while also draining the battery in a balanced manner. In a Matlab/Simulink simulation, both power and communication signals may be conveyed using a pulse width modulation technique and a frequency shift keying approach. The suggested system's maximum signal rate is 600 bit/s, as estimated by calculating the bit error rate of the sent signal.