Determination of transient stability regions in state space using local Lyapunov surfaces

Date

1987

Author

Eskicioğlu, A.M.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

212
views

0
downloads

A new approach to the determination of stability regions of multimachine electric power systems is presented, using a Lyapunov function in conjunction with a certain class of unstable equilibrium points. The relevant Lyapunov surface is constructed for each fault, which is considered to be a local approximation to the stability region. Comparison shows that the conservative nature of the second method of Lyapunov is eliminated.

Subject Keywords

General engineering, Engineering, electrical and electronic, Stability, Transient, Power systems and plant

URI

https://hdl.handle.net/11511/52096

Journal

IEE Proceedings C Generation, Transmission and Distribution

DOI

https://doi.org/10.1049/ip-c.1987.0036

Collections

Department of Computer Engineering, Article

Suggestions

OpenMETU
Core

Solutions of new potential integral equations using approximate stable diagonalization of the Green's function Gur, U.M.; Karaosmanoglu, B.; Ergül, Özgür Salih (2017-09-15) We present efficient and accurate solutions of scattering problems involving dense discretizations with respect to wavelength. Recently developed potential integral equations (PIEs) for stable solutions of low-frequency problems are used to formulate such challenging problems, where the electric current density and magnetic vector potential are defined as unknowns. For solving problems discretized with large numbers of unknowns, we further use an approximate diagonalization of the Green's function within th...
FEASIBILITY OF LYAPUNOV FUNCTIONS FOR POWER-SYSTEM TRANSIENT STABILITY ANALYSIS BY THE CONTROLLING UEP METHOD ESKICIOGLU, AM; Sevaioğlu, Osman (Institution of Engineering and Technology (IET), 1992-03-01) Recently a great deal of improvement has been achieved in reducing the inherent conservativeness of the direct method of Lyapunov in its application to the transient stability analysis of multimachine power systems. One major discovery is the recognition of the fault location as a critical factor for the determination of the boundary of the stability region. The controlling UEP method takes into consideration the relevant unstable equilibrium points to construct Lyapunov surfaces, local approximations to th...
Implementation of the Equivalence Principle Algorithm for Potential Integral Equations Farshkaran, Ali; Ergül, Özgür Salih (Institute of Electrical and Electronics Engineers (IEEE), 2019-05-01) A novel implementation of the equivalence principle algorithm (EPA) employing potential integral equations (PIEs) is presented. EPA is generalized to be compatible with PIEs that are used to formulate inner problems inside equivalence surfaces. Based on the stability of PIEs, the resulting EPA-PIE implementation is suitable for low-frequency problems involving dense discretizations with respect to wavelength. Along with the formulation and a clear demonstration of the EPA-PIE mechanism, high accuracy, stabi...
A Five Layer One-Dimensional PEMFC Model with Detailed Electrode Kinetics Ficicilar, B.; Eroğlu, İnci; Nguyen, T. V. (2010-10-01) In this study, a non-isothermal, two-phase, one-dimensional, and steady state proton exchange membrane (PEM) fuel cell model is developed to investigate the detailed electrode kinetics in the anode and cathode catalytic regions and the effects of these reaction mechanisms on the performance of a PEM fuel cell. Langmuir-Butler-Volmer (LBV) type reaction rate expressions are suggested for both anode and cathode electrochemical reactions. A two-phase energy balance approach is used to catch the thermal transpo...
EVALUATION OF SECOND VIRIAL COEFFICIENTS FROM SATURATION DATA Orbey, H.; Orbey, N. (Informa UK Limited, 1989-3) A data reduction technique is introduced for the evaluation of second virial coefficients of gases at subcritical temperatures. The method makes use of the vapor-liquid equilibrium data, i.e., temperature, saturation pressure, liquid and vapor molar volumes and can be used to obtain second virial coefficients of a wide variety of fluids including polar, associating and quantum gases. The calculated second virial coefficients are in good agreement with their counterparts from literature, which are obtained f...

Citation Formats

A. M. Eskicioğlu, “Determination of transient stability regions in state space using local Lyapunov surfaces,” IEE Proceedings C Generation, Transmission and Distribution, 1987, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52096.