CUED Publications database

Impedance-based analysis of grid-synchronization stability for three-phase paralleled converters

Wen, B and Dong, D and Boroyevich, D and Burgos, R and Mattavelli, P and Shen, Z (2016) Impedance-based analysis of grid-synchronization stability for three-phase paralleled converters. IEEE Transactions on Power Electronics, 31. pp. 26-38. ISSN 0885-8993

Full text not available from this repository.

Abstract

© 1986-2012 IEEE. Grid synchronization stability issues and subsynchronous oscillations between synchronous generators exist in electrical power systems. Three-phase voltage-source converters (VSCs) are being installed more and more in the grid to improve efficiency or to utilize renewable energy sources. The same stability issues between VSCs are also reported and analyzed using a small-signal model of phase-locked loops (PLLs). This paper proposes a different impedance-based analysis method. The proposed method shows that synchronization instability in a VSC system is due to the negative incremental resistance behavior of grid-tied inverters' impedance when they are modeled in the d-q frame. System can be stabilized simply by changing the inverter's PLL design. Experimental results verify the analysis and the proposed method.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:23
Last Modified: 26 Oct 2017 01:54
DOI: