Abstract
Several analysis methods are available for long-term voltage stability. The V-Q curve power flow method is widely used by Western Systems Coordinating Council utilities, and has some advantages. Long-term dynamic simulation with proper modeling, however, is clearly the most accurate simulation method. The authors compare the two methods for wintertime voltage stability problems in the Portland, Oregon, USA, load area. Results from the V-Q method can be misleading. The same is true of other power flow program based analysis employing conventional modeling. Results from these power flow methods may be pessimistic, causing overdesign or overly conservative operation.
Recommended Citation
B. H. Chowdhury and C. W. Taylor, "Voltage Stability Analysis: V-Q Power Flow Simulation versus Dynamic Simulation," IEEE Transactions on Power Systems, vol. 15, no. 4, pp. 1354 - 1359, Institute of Electrical and Electronics Engineers (IEEE), Nov 2000.
The definitive version is available at https://doi.org/10.1109/59.898112
Department(s)
Electrical and Computer Engineering
International Standard Serial Number (ISSN)
0885-8950
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2000 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
01 Nov 2000
