Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22851
Title: Voltage stability analysis considering the uncertainties of dynamic load parameters
Authors: Zhang, JF
Tse, CT
Wang, KW
Chung, CY
Issue Date: 2009
Publisher: Institution of Engineering and Technology
Source: IET generation, transmission & distribution, 2009, v. 3, no. 10, p. 941-948 How to cite?
Journal: IET generation, transmission & distribution 
Abstract: Many uncertainties exist in power systems and they will affect the stability analysis results. Voltage stability considering uncertainty in load parameters will be discussed. With the assumption that parameter variation is normal distribution, the probabilistic characteristics of eigenvalues under the uncertainties of dynamic load parameters can be obtained. Distribution of the critical eigenvalue will determine the stability probability of a power system. The stability margin can be inferred from the probabilistic critical load level, which is the maximal load level where system is 'probabilistically' stable. Case studies on three test systems illustrate that the stability margin will be reduced with load uncertainty. The proposed probabilistic results are validated using deterministic method of Monte Carlo on multi 10000 sample studies.
URI: http://hdl.handle.net/10397/22851
ISSN: 1751-8687
EISSN: 1751-8695
DOI: 10.1049/iet-gtd.2009.0089
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