TY - GEN
T1 - Grid-synchronization modeling and its stability analysis for multi-paralleled three-phase inverter systems
AU - Dong, Dong
AU - Wen, Bo
AU - Mattavelli, Paolo
AU - Boroyevich, Dushan
AU - Xue, Yaosuo
PY - 2013
Y1 - 2013
N2 - Synchronization instability issue and the corresponding low-frequency power oscillation phenomenon between synchronous generators were already found in electric power systems and addressed by various solutions. However, the grid-synchronization behaviors and the potential instabilities between multi-paralleled power electronic inverters have not been well-understood due to the different synchronization mechanisms. This paper presents a set of small-signal modeling methodologies to predict the low-frequency behaviors of the grid-synchronization loops in multi-paralleled inverter systems. The proposed model can predict the low-frequency unstable oscillation in large-penetrated renewable-energy systems as well as assess the effectiveness of frequency-based islanding-detection under multi-paralleled inverter conditions.
AB - Synchronization instability issue and the corresponding low-frequency power oscillation phenomenon between synchronous generators were already found in electric power systems and addressed by various solutions. However, the grid-synchronization behaviors and the potential instabilities between multi-paralleled power electronic inverters have not been well-understood due to the different synchronization mechanisms. This paper presents a set of small-signal modeling methodologies to predict the low-frequency behaviors of the grid-synchronization loops in multi-paralleled inverter systems. The proposed model can predict the low-frequency unstable oscillation in large-penetrated renewable-energy systems as well as assess the effectiveness of frequency-based islanding-detection under multi-paralleled inverter conditions.
KW - Grid-synchronization
KW - grid-interface converter
KW - phase-locked-loop
UR - http://www.scopus.com/inward/record.url?scp=84879358914&partnerID=8YFLogxK
U2 - 10.1109/APEC.2013.6520247
DO - 10.1109/APEC.2013.6520247
M3 - Conference contribution
AN - SCOPUS:84879358914
SN - 9781467343541
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 439
EP - 446
BT - 2013 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
T2 - 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
Y2 - 17 March 2013 through 21 March 2013
ER -
