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A new modulation-demodulation approach to DC power-line data transmission for SRG-integrated microgrid

journal contribution
posted on 2020-11-01, 00:00 authored by Dongsheng Yu, Yingchun Hua, Samson YuSamson Yu, Pinjia Zhang, Herbert H C Iu, Tyrone Fernando
Switched reluctance generators (SRGs) possess a range of advantages, such as simple structure, good heat dissipation, high fault tolerance, which have thus been applied to wind power generation systems and other distributed generators. In order to maximize SRG performances, stable and reliable communication is essential to facilitate system monitoring, fault detection and energy management system development. In this study, we propose a new modulation-demodulation strategy to realize effective power-line communication (PLC) between SRG and other converters in an inverter-interfaced distributed power grid. The newly designed modulation method utilizes and controls the turn-on/off angle (TOA) of an SRG, so as to modulate the voltage ripples to convey information to the receiving end. An innovated demodulation method is also devised in this paper, using maximum entropy spectrum estimation (MESE) method, for the purpose of acquiring useful signals from the sending end. Vigorous experimentation is conducted, which verify the functionality of the proposed TOA-MESE modulation-demodulation method for data transmission between SRG and other converter-based installations.

History

Journal

IEEE transactions on power electronics

Volume

35

Issue

11

Pagination

12370 - 12382

Publisher

Institute of Electrical and Electronics Engineers

Location

Piscataway, N.J.

ISSN

0885-8993

eISSN

1941-0107

Language

eng

Publication classification

C1 Refereed article in a scholarly journal