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- Title
Assessment of Voltage Stability Margin Constrained by Electricity Market Uncertainties.
- Authors
Nourollah, Sara; Pirayesh, Abolfazl
- Abstract
Because of less regulation and more uncertainties in an open access power system, voltage stability analysis has become a challenging problem for independent system operators. It is known that Loading Margin Index (LMI) is the most basic and widely accepted index of voltage collapse in security studies of power systems. In this paper an algorithm for calculating the expected value of LMI considering uncertainties of consumer's loads, offers by generation companies and the reliability of network elements is proposed. The method is based on Monte Carlo Simulation (MSC) and the results on IEEE 24-bus RTS system are included in the paper. The sensitivity of the voltage stability margin to uncertainty modeling is presented and output parameters calculated through MCS are compared with the indices assessed by deterministic i.e., the expected values of the input parameters.
- Subjects
ELECTRICITY markets; VOLTAGE regulators; MONTE Carlo method; ELECTRIC power system management; UNCERTAINTY; MARGIN requirements; LOAD flow analysis (Electric power systems); LOAD dispatching in electric power systems
- Publication
International Review on Modelling & Simulations, 2012, Vol 5, Issue 3, p1308
- ISSN
1974-9821
- Publication type
Article