Journal Article10.1109/TEC.2003.822296
Identification of physical parameters of a synchronous Generator from online measurements
Mehdi Karrari,Om P. Malik +1 more
142
TL;DR: In this article, a method to determine physical parameters of a synchronous generator based on an online measurement of the electrical power, terminal voltage and field voltage, following a small perturbation of the field voltage and the rotor angle at the same steady-state operating condition is described.
read more
Abstract: A new method to determine physical parameters of a synchronous generator based on an online measurement of the electrical power, terminal voltage, and field voltage, following a small perturbation of the field voltage, and the rotor angle at the same steady-state operating condition is described in this paper. A multivariable linear transfer function, identified using the sampled input-output data, is converted to the parameters of the Heffron-Phillips model. Using the relations of the Heffron-Phillips parameters with the physical parameters, the physical parameters are estimated. These estimated parameters are then used in a nonlinear structure to model the synchronous generator. Experimental results with the proposed method applied to a micromachine show good accuracy of the model and also show that the identified nonlinear model is valid at other operating conditions. At dramatically different operating conditions, however, to include the effects of unstructured nonlinearities such as magnetic saturation, the parameters of the nonlinear structure can be slightly adjusted for better performance.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Parameter estimation of synchronous generators from different types of disturbances
Elmer P. T. Cari,Luis F. C. Alberto +1 more
- 24 Jul 2011
TL;DR: In this paper, a methodology of parameter estimation of synchronous generator from different types of disturbances, such as: transmission line trip-out, single-phase faults and three phase faults, is proposed.
27
Two-Step Method for Identification of Nonlinear Model of Induction Machine
TL;DR: In this article, a two-step method is applied for parameter identification of a saturated electromechanical model of an induction machine (IM) and the k-factor cross saturation technique is used to account for iron saturation.
21
SG parameters estimation based on synchrophasor data
Babak Ahmadzadeh-Shooshtari,Roozbeh Torkzadeh,Meysam Kordi,Hesamoddin Marzooghi,Hesamoddin Marzooghi,Fariborz Eghtedarnia +5 more
TL;DR: It is shown that the least-squares (LS) algorithm outperforms well known methods for synchronous generator (SG) parameters estimation using phasor measurement unit (PMU) data, and a modified LS (MLS) algorithm, which estimates the initial values of SG model state variables alongside SG parameters, is proposed.
17
Parameter Identification of Heffron-Phillips Model Considering AVR Using On- Line Measurements Data
TL;DR: In this article, a genetic algorithm-based method is proposed to identify the parameters of the synchronous generator and excitation system in the frame of Heffron-Phillips model using on-line measurements data.
Rotor-angle versus voltage instability in the third-order model for synchronous generators.
Konstantin Sharafutdinov,Leonardo Rydin Gorjão,Moritz Matthiae,Timm Faulwasser,Dirk Witthaut +4 more
TL;DR: This work carries out a local stability analysis of the third-order model which entails the classical power-swing equations and the voltage dynamics and analytically derive a global stability map.
References
I and i
TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
38.1K
•Book
Power System Stability and Control
P. Kundur
- 01 Jan 1994
TL;DR: In this article, the authors present a model for the power system stability problem in modern power systems based on Synchronous Machine Theory and Modelling, and a model representation of the synchronous machine representation in stability studies.
20.5K
Subset selection for improved parameter estimation in on-line identification of a synchronous generator
TL;DR: In this paper, the authors examined subset selection for nonlinear least squares parameter estimation, and applied the methodology to a test system previously studied in the power system literature, involving the on-line identification of a synchronous generator model with many parameters.
222
Calculation of Synchronous Machine Constants- Reactances and Time Constants Affecting Transient Characteristics
TL;DR: In this paper, all of the most significant constants are calculated, except the subtransient time constant, and a general method of calculation is discussed in which the reactances are accurately resolved into components.
134
Impact of dynamic cross-saturation on accuracy of saturated synchronous machine models
Emil Levi,Victor Levi +1 more
TL;DR: In this article, the authors compare the effect of dynamic cross-saturation on synchronous machines and show that the effect depends on the selected set of state-space variables and the number of nonzero elements in the system matrix.
129