NDLI: Non-linear load modeling — Requirements and preparation for measurement

Content Provider	IEEE Xplore Digital Library
Author	Rudion, K. Guo, H. Abildgaard, H. Styczynski, Z.A.
Copyright Year	2009
Description	Author affiliation: Research Assistants at the Otto-von-Guericke-University Magdeburg (Rudion, K.; Guo, H.) \|\| Energinet.dk, the Danish TSO for electricity and gas (Abildgaard, H.) \|\| Electrical Engineering and Information Technology at Otto-von-Guericke-University Magdeburg (Styczynski, Z.A.)
Abstract	The existing software for the simulation of power system operation uses mostly simple load models such as the constant power load model, the constant impedance load model or the static polynomial load model to represent the real system load characteristic. In some cases using such load models in power system dynamic simulation may produce inaccurate results and lead to inappropriate system operation. In this paper load modeling using field measurement data from a load bus in the power grid to improve the simulation accuracy in the study of power system stability is discussed. The goal is to investigate the influence of different perturbations in the power grid on load behaviors as preparation for field measurement. Furthermore, there is a focus on the definition of measurement requirements. In addition, the nonlinear least-squares algorithm used to identify load model is discussed. As preparation, a complex nonlinear load model with predetermined parameters will be simulated in some defined scenarios, the simulation results are compared with a constant power load model. By using the transformer tap changer to make perturbations in the power system, the load dynamic characteristics could be gathered, and the perturbations data could be used to identify the parameters of the non-linear load model.
Starting Page	1
Ending Page	7
File Size	1068439
Page Count	7
File Format	PDF
ISBN	9781424442416
ISSN	19449925
DOI	10.1109/PES.2009.5275994
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Load modeling Power system modeling Power system simulation Power system dynamics Power measurement Power grids Power system measurements Impedance Polynomials Power system stability Transformer Tap changing non-linear load model Nonlinear Least-Squares algorithm
Content Type	Text
Resource Type	Article

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