Development of synchronous generator saturation model from steady-state operating data

Jadrić, Martin; Despalatović, Marin; Terzić, Božo

doi:10.1016/j.epsr.2010.05.002

Cited by 5 publications

(12 citation statements)

References 16 publications

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“…The major drawback of this approach is that for some utility generators, as is the case for the machine under the test in this study, it is not possible to achieve linearity at operating conditions at all. The other approach presented in [17], [18] uses measurements of steady-state variables at constant power generation and various excitation conditions in order to estimate the turns ratio.…”

Section: B Online Estimation Of Saturated Synchronous Inductancesmentioning

confidence: 99%

“…In this paper, modeling of the saturated salient-pole synchronous generator is considered based on the analytical saturation model presented in [17]. Two different saturation models are incorporated into the standard machine model with the winding currents as state-space variables.…”

Section: Introductionmentioning

confidence: 99%

“…In [16], an artificial neural network-based estimator is used to model these saturated inductances. Another method for identification and modeling of the saturated synchronous inductances of the salient-pole synchronous machine is proposed in [17], [18]. This approach is based on a specific procedure for estimation of the field-to-armature turns ratio and requires measurements of steady-state variables only.…”

Section: Introductionmentioning

confidence: 99%

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Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data

Despalatović

Jadrić

Terzić

2012

IEEE Trans. on Ind. Applicat.

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This paper deals with modeling of the saturated salient-pole synchronous machines using analytical saturation model obtained based on measurements of steady-state variables. Two different saturation models are considered in order to investigate impact of the reciprocity property of the mutual inductance between d-and q-axis on transients of the saturated machine. It is shown that the simpler saturation model, which is obtained by neglecting the reciprocity property condition, may be used to model saturation in both steady-state and transient conditions. The developed model of the saturated machine is validated with measurements performed on the 34-MVA hydroturbine generator.

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Section: B Online Estimation Of Saturated Synchronous Inductancesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data

Despalatović

Jadrić

Terzić

2012

IEEE Trans. on Ind. Applicat.

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“…There are numerous models of the synchronous machines for steady-state [4]- [7] but there are few of them that are able to accurately describe the steady-state operation for a wide range operation in both overexcited and underexcited regimes [8] especially for salient pole synchronous generators [9], [10]. Some of the models are very complicated and complex and require complicated identification methods [5]- [7], [11] in order to estimate model parameters.…”

Section: Introductionmentioning

confidence: 99%

Steady-state synchronous machine model which incorporates saturation and cross-magnetization effects

Hanić

Vražić

Maljković

2013

4th International Conference on Power Engineering, Energy and Electrical Drives

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In this paper steady-state synchronous machine model which incorporates magnetic saturation and crossmagnetization is presented. Instead of using synchronous reactances and induced voltage E0 this model uses current dependent flux linkage functions in direct and quadrature axes to model armature reaction. If those functions are modeled as a polynomials of three independent variables which are armature current in direct and quadrature axis and field current, identification of the proposed model's parameters from load operation data becomes a linear problem. Paper also provides a method for calculation arbitrary steady-state load operation point based on the knowledge of the current dependent flux linkage functions. Proposed model, identification and calculation methods are validated and tested on 35 MVA, 10.5 kV, 50 Hz synchronous generator.

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“…Based on the d-and q-axis saturated synchronous reactances, which is found with a wide range of operating parameters; the hydro turbine generator steady-state saturation model is established in an analytical form with the help of polynomial functions of two variables [51]. When the stator yoke begins to saturate due to very high flux density, losses could be generated in the supporting structure of the stator.At a low operating frequency, losses are minor in the housing of the machine, when the peak stator yoke flux density is restricted to 1.5 T in the stator yoke [75].…”

Section: Saturation Effectmentioning

confidence: 99%

Conceptual Framework of Antecedents to Trends on Permanent Magnet Synchronous Generators for Wind Energy Conversion System

Padmanathan¹,

Uma²,

Ramachandaramurthy³

et al. 2017

Preprint

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Abstract:The Wind Energy Conversion System (WECS) plays an inevitable role across the world. In particular, the attention for Permanent Magnet Synchronous Generators (PMSGs) connected with wind farm is popular. This paper deals with the literature review that describes the recent advances, progresses and innovatory trends on PMSGs for WECS. Comparison between geared and direct-driven conversion systems and the classification of electrical machines used in WECS are discussed. A detailed analysis on the design aspects considering various topologies of PMSGs are encompassed in the literature. The PMSG design and optimization problems are solved by field computation techniques and optimized by using Soft Computing (SC) techniques .The threedimensional, finite element software platform for the analysis and design of PMSGs is discussed. This paper also deals with the interdisciplinary modeling, analysis, and optimization of PMSG using Finite Element Analysis (FEM) and SC techniques. Finally, PMSGs are reviewed and compared for further exploration.

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Development of synchronous generator saturation model from steady-state operating data

Cited by 5 publications

References 16 publications

Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data

Modeling of Saturated Synchronous Generator Based on Steady-State Operating Data

Steady-state synchronous machine model which incorporates saturation and cross-magnetization effects

Conceptual Framework of Antecedents to Trends on Permanent Magnet Synchronous Generators for Wind Energy Conversion System

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