DocumentCode :
3666109
Title :
Out-of-step detection using Zubov´s approximation stability boundaries
Author :
Yawei Wei;Sumit Paudyal;Bruce A. Mork
Author_Institution :
Department of Electrical and Computer Engineering, Clemson University, SC, USA
fYear :
2015
fDate :
7/1/2015 12:00:00 AM
Firstpage :
1
Lastpage :
5
Abstract :
This paper presents a new out-of-step detection method for multi-machine power systems based on approximate stability boundaries. The boundaries are constructed based on Zubov´s method of stability analysis. The proposed out-of-step detection method first constructs a series of boundaries in power angle - frequency (δ-ω) plane, and tracks the trajectory of each generator in the δ-ω plane after the disturbance to differentiate out-of-step from stable power swings. The electrical parameters needed to construct approximate stability boundaries are obtained directly from Phasor Measurement Units (PMUs) located at the generator´s terminal. The effectiveness of the proposed method is tested in a Single Machine Infinite Bus (SMIB) and the IEEE 3-machine 9-bus system. Simulation results show that the proposed algorithm is capable of detecting out-of-step conditions in multi-machine power systems without using network reduction techniques.
Keywords :
"Power system stability","Trajectory","Phasor measurement units","Stability analysis","Approximation methods","Generators","Mathematical model"
Publisher :
ieee
Conference_Titel :
Power & Energy Society General Meeting, 2015 IEEE
ISSN :
1932-5517
Type :
conf
DOI :
10.1109/PESGM.2015.7286595
Filename :
7286595
Link To Document :
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