Modeling of synchronous machines with magnetic saturation

Rehaoulia, Habib; Capolino, Gérard‐André

doi:10.1016/j.epsr.2006.06.003

Cited by 24 publications

(11 citation statements)

References 16 publications

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“…To take into account different loads connected to the MG, it is proposed to add a virtual capacity in the output model of the machine ( Figure 2). Then, the equations in dq frame that describe the behavior of the main generator become [3,4] i d l = i d p + CWepVqp -C d ��p equal to 120 V. This approximation has several advantages:…”

Section: Modelling Of the Main Generatormentioning

confidence: 99%

Direct control strategy of synchronous generators using DC/DC converter

Barakat

Tnani

Champenois

et al. 2012

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

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The excitation system is the principal element that influences the dynamic behavior of alternators. This paper presents a new excitation structure based on a wound field synchronous machine (exciter machine), a diode bridge rectifier and a dc chopper. The proposed structure is associated to a Hoo voltage controller. The dynamic behavior of the synchronous generator is evaluated by experimental tests in the presence of unknown variations of the the power system operating conditions. Experimental results are presented and discussed

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Section: Modelling Of the Main Generatormentioning

confidence: 99%

Direct control strategy of synchronous generators using DC/DC converter

Barakat

Tnani

Champenois

et al. 2012

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

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“…Polynomials (6) and (7) can be significantly simplified without reducing overall accuracy of saturation characteristics if reciprocity condition is neglected. Thus, [17] (9) where m + n define the order of the polynomial functions, a jk and b jk (j = 0, 1, 2, . .…”

Section: A Formulation Of Saturation Modelmentioning

confidence: 99%

“…The transient selected for analysis is a step 5% decrease in the stator terminal voltage what is common in similar simulation studies [12]. Simulation was at first performed using the saturated machine (9) model A and then using the saturated machine model B. Next, the same transient was simulated using the unsaturated machine model with d-and q-axis mutual inductances set to the constant value that corresponds to the previous steady state obtained using the saturation model A (L md = 0.797 pu, L mq = 0.328 pu).…”

Section: Simulation and Experimental Studiesmentioning

confidence: 99%

“…This is because of ignoring the effect of any magnetic coupling between the d-and q-axis windings that is usually called in the literature cross-magnetizing effect. An existence of the crossmagnetizing phenomenon in synchronous machines has been verified experimentally, and different theoretical approaches have been proposed to determine parameters that represent the cross-magnetizing effect [5]- [9]. Some papers have investigated the reciprocity property that must hold for the mutual inductance between d-and q-axis [10], [11].…”

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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“…The connected load is a variable one as presented in Fig.2. By adopting generator convention, the machine model in dq frame is given by [9] …”

Section: Modeling Of the Sg Load As Exogenous Inputmentioning

confidence: 99%

Association of a multivariable H<inf>∞</inf> voltage controller with a thyristor excitation structure supplied by a WFSM

Barakat

Tnani

Champenois

et al. 2011

2011 International Conference on Power Engineering, Energy and Electrical Drives

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In this study the authors present the contribution of the thyristor excitation structure in combination with a multivariable H∞ controller. The thyristor bridge is supplied by a wound eld synchronous machine (WFSM). A complete modeling of the excitation structure will be presented. The linearization of the feedback control is realized without approximation. The design of the multi input single output H∞ voltage controller will be also included. In addition, the implementation in real time domain will allow us to show the ef ciency of the proposed structure as regards the reference tracking and perturbation rejection.Index Terms-H∞ control, AC generator excitation, state space modeling, thyristor recti er.NOMENCLATURE v dp , v qp SG terminal voltages in dq frame. i dp , i qp SG armature currents in dq frame. v f , i f voltage and current of the main eld winding. L d , L q SG direct and transverse stator inductances. L D , L Q SG direct and transverse dampers inductances. L f SG main eld inductance. M sf SG mutual inductance between direct stator winding and main eld one. M f D SG mutual inductance between main eld and direct damper. M sD , M sQ SG mutual inductance between direct stator winding and direct/transverse damper windings. R s , R f SG stator resistance, SG main eld resistance. R D , R Q SG direct and transverse damper resistances. ω ep SG electrical angular speed.

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Modeling of synchronous machines with magnetic saturation

Cited by 24 publications

References 16 publications

Direct control strategy of synchronous generators using DC/DC converter

Direct control strategy of synchronous generators using DC/DC converter

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

Association of a multivariable H<inf>∞</inf> voltage controller with a thyristor excitation structure supplied by a WFSM

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Modeling of synchronous machines with magnetic saturation

Cited by 24 publications

References 16 publications

Direct control strategy of synchronous generators using DC/DC converter

Direct control strategy of synchronous generators using DC/DC converter

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

Association of a multivariable H<inf>&#x221E;</inf> voltage controller with a thyristor excitation structure supplied by a WFSM

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Association of a multivariable H<inf>∞</inf> voltage controller with a thyristor excitation structure supplied by a WFSM