Analysis of Low Voltage AC Transmission System with Simultaneous Bi-directional Transmission of AC Power and Signal

With the continuous development of power electronics and communication technology, using the same power cable or signal cable for simultaneous transmission of power and signal is also an important part of building a new type of power system. In this paper, a low-voltage AC transmission system with bidirectional simultaneous transmission of AC power and information data is proposed. One end is responsible for modulating the data signal to act on the inverter, and the other end is responsible for modulating and demodulating the data signal. This is a signal and electric power simultaneous transmission mode, which is different from power over data line and power line carrier communication. Based on the analysis of the system structure and working principle, simulation analysis and verification are carried out. The results show that the system can support bidirectional simultaneous transmission of AC power and information data, and is suitable for low power low-voltage DC power transmission applications.