DocumentCode
2655874
Title
Influence of voltage feed-forward control on small-signal stability of grid-tied inverters
Author
Xuan Zhang ; Wang, Fred ; Wenchao Cao ; Yiwei Ma
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Univ. of Tennessee, Knoxville, TN, USA
fYear
2015
fDate
15-19 March 2015
Firstpage
1216
Lastpage
1221
Abstract
In balanced three-phase systems, source impedance and load admittance matrices in the synchronous rotating (d-q) frame can be used to determine system small-signal stability based on the Generalized Nyquist stability Criterion (GNC). For grid-tied inverters, voltage feed-forward control (VFFC) is widely used due to its fast transient dynamics. Through modeling the d-q frame admittances of three-phase grid-tied inverters with voltage feed-forward control, this paper illustrates instability mechanism and proposes some possible solutions. Simulation and experimental results verify the analysis.
Keywords
Nyquist criterion; Nyquist stability; invertors; power grids; voltage control; Nyquist stability criterion; grid-tied inverters; load admittance matrices; small-signal stability; source impedance matrices; synchronous rotating frame; three-phase systems; voltage feed-forward control; Impedance; Inverters; Phase locked loops; Power system stability; Stability criteria; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE
Conference_Location
Charlotte, NC
Type
conf
DOI
10.1109/APEC.2015.7104502
Filename
7104502
Link To Document