Novel communication method between power converters for DC micro-grid applications

Author

Zhengyu Lin ; Jin Du ; Jiande Wu ; Xiangning He

Author_Institution

Electr., Electron. & Power Eng., Aston Univ., Birmingham, UK

fYear

2015

fDate

7-10 June 2015

Firstpage

92

Lastpage

96

Abstract

Communication between power converters is vital for high performance DC micro-grids controls. However, for residential DC micro-grid applications, using external communication link would increase the system cost, and reduce the system flexibility and reliability. This paper presents a novel method to enable the conventional DC/DC converters to transmit data via the common DC Bus. With this technology, cost-effective low bandwidth communication links between power converters can be established within a DC micro-grid, and advanced distributed control algorithms can be developed. A reliable communication with 2 kbps transmission rate has been implemented between the Boost converters through the common input DC bus.

Keywords

DC-DC power convertors; distributed control; distributed power generation; power distribution control; Boost converters; DC/DC converters; distributed control algorithms; power converters; residential DC microgrid applications; Decentralized control; Discrete Fourier transforms; Pulse width modulation; Reliability; Switching frequency; Voltage control; DC micro-grid; Discrete Fourier Transform (DFT); communication; demodulation; modulation; power converter;

fLanguage

English

Publisher

ieee

Conference_Titel

DC Microgrids (ICDCM), 2015 IEEE First International Conference on

Conference_Location

Atlanta, GA

Type

conf

DOI

10.1109/ICDCM.2015.7152016

Filename

7152016