Bidirectional DC–AC Converter-Based Communication Solution for Microgrid

Power Electronics and Drives

Hu Yihua¹  Zhang Yixuan¹  Wang Yangang²  Ni Kai³ 

[1] Department of Electronics, University of York, York, United Kingdom;Dynex Semiconductor Ltd., Doddington Road, Lincoln, United Kingdom;School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, China;

关键词: bidirectional dc–ac converter;    frequency shift keying;    matlab simulation;    microgrid;    two-way communication;   

DOI  :  10.2478/pead-2020-0013

来源: DOAJ

【 摘 要 】

The communication system of a microgrid can transfer the information of electricity price, power consumption and so on between users and the control centre. This capability is of great significance to improve the efficiency and sustainability of power facilities. In this paper, a bidirectional DC–AC converter topology is proposed to achieve the composite transmission of power and signals in microgrids. Since the transmitted signals are modulated by power switches of converters and integrated into the currents, the cost of signal couplers can be saved and the circuit structure can be simplified. In order to verify the feasibility of the proposed method, a simulation model of the proposed converter is implemented in MATLAB/Simulink. With the power supply frequency of 50 Hz, when the converter operates in the inverter mode and rectifier mode, the data transmission rate can reach 120 bit/s and 48 bit/s, respectively.

【 授权许可】

Unknown