Harmonic Resonance Mode Analysis in dq Domain

Abel A. Taffese, Elisabetta Tedeschi




Harmonic Resonance Mode Analysis (HRMA) is a technique developed to study harmonic resonance in a power system. Compared to conventional resonance analysis techniques, HRMA is a powerful method that can indicate the origin and the locations most affected by a given mode
of resonance. The method has been shown to be effective for large scale resonance studies. However, very simplified models are used for representing power converters. With the proliferation of power converter interfaced energy sources in the future power system, there is a need to correctly model power converters in such studies. The main challenge is to correctly represent the control loops. The controllers are mostly designed in dq domain while the study is performed in phase domain. To address this problem, this paper proposes extension of HRMA to dq domain. Formulation of the problem in dq domain is presented in detail followed by verification using
simple test cases. A detailed model of a voltage source converter for the aforementioned analysis is also developed and analysed using the test cases.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ, Nº. 15)
Pages: 167-172 Date of Publication: 2017/04/25
ISSN: 2172-038X Date of Current Version:
REF: 260-17 Issue Date: April 2017
DOI:10.24084/repqj15.260 Publisher: EA4EPQ

Authors and affiliations

Abel A. Taffese, Elisabetta Tedeschi
Department of Electric Power Engineering. Norwegian University of Science of Technology. Trondheim, Norway

Key word

Harmonic Resonance Mode Analysis, HRMA, Resonance, dq, VSC.


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