NDLI: Quadratic integration method for transient simulation and harmonic analysis

Content Provider	IEEE Xplore Digital Library
Author	Stefopoulos, G.K. Cokkinides, G.J. Meliopoulos, A.P.
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA (Stefopoulos, G.K.; Cokkinides, G.J.; Meliopoulos, A.P.)
Abstract	This paper elaborates on a newly introduced approach for time-domain transient simulation of electric power systems with highly nonlinear and/or switching subsystems. The new methodology is based on a numerical integration scheme that assumes that the system model states vary quadratically within a time step (quadratic integration). The proposed method is an implicit integration scheme which demonstrates improved numerical characteristics and most importantly improved solution precision. The approach also demonstrates superior behavior compared to traditionally used methods in power system transient analysis (such as the trapezoidal integration rule) in terms of accuracy and numerical stability properties, especially for highly nonlinear and switching systems. Details about the numerical properties of the method are briefly discussed in the paper. The proposed methodology and its performance are demonstrated on two test systems including (a) linear R-L-C electric circuit representing a simple converter model, and (b) highly nonlinear saturable inductor model. The methodology is very useful for analysis of systems with power electronics and nonlinear devices such as saturable transformers/reactors and surge arresters.
Starting Page	1
Ending Page	6
File Size	714267
Page Count	6
File Format	PDF
ISBN	9781424417711
DOI	10.1109/ICHQP.2008.4668852
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-28
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transient analysis Analytical models Harmonic analysis Power system transients Power system modeling Power system simulation Circuit testing Inductors Time domain analysis Numerical stability time-domain simulation Nonlinear systems numerical integration power system transient simulation
Content Type	Text
Resource Type	Article

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