Title
A Framework for Robust Long-Term Voltage Stability of Distribution Systems
Abstract
Power injection uncertainties in distribution power grids, which are mostly induced by aggressive introduction of intermittent renewable sources, may drive the system away from normal operating regimes and potentially lead to the loss of long-term voltage stability (LTVS). Naturally, there is an ever increasing need for a tool for assessing the LTVS of a distribution system. This paper presents a fast and reliable tool for constructing <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">inner approximations</italic> of LTVS regions in multidimensional injection space such that every point in our constructed region is guaranteed to be solvable. Numerical simulations demonstrate that our approach outperforms all existing inner approximation methods in most cases. Furthermore, the constructed regions are shown to cover substantial fractions of the true voltage stability region. This paper will later discuss a number of important applications of the proposed technique, including fast screening for viable injection changes, constructing an effective solvability index and rigorously certified loadability limits.
Year
DOI
Venue
2019
10.1109/tsg.2018.2869032
IEEE Transactions on Smart Grid
Keywords
Field
DocType
Power system stability,Numerical stability,Stability criteria,Thermal stability,Smart grids,Indexes
Voltage stability,Renewable energy,Smart grid,Control theory,Distribution system,Control engineering,Engineering,Power injection,Numerical stability
Journal
Volume
Issue
ISSN
10
5
1949-3053
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Hung D. Nguyen1103.01
Krishnamurthy Dvijotham218726.90
Suhyoun Yu311.45
Konstantin Turitsyn411.40