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SISO Transfer Functions for Stability Analysis of Grid-Connected Voltage-Source Converters.
- Source :
-
IEEE Transactions on Industry Applications . May/Jun2019, Vol. 55 Issue 3, p2931-2941. 11p. - Publication Year :
- 2019
-
Abstract
- Converter-grid interaction is of great interest in a weak-grid condition. This paper presents a single-input–single-output (SISO) open-loop transfer function for the stability analysis of grid-connected voltage-source converters. Differing from the conventional input impedance method and the eigenvalue analysis, an alternative multi-input–multi-output closed-loop system is developed in the paper and it eventually yields an SISO open-loop transfer function. This enables the application of a single Nyquist curve for analyzing the overall system stability. The model is validated against time-domain simulations as well as experimental results showing excellent accuracy for predicting the system stability. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 55
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- 136101409
- Full Text :
- https://doi.org/10.1109/TIA.2019.2898978