Modelling of induction machines for electric drives

Slemon, G.R.

doi:10.1109/28.44251

Cited by 260 publications

(141 citation statements)

References 7 publications

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“…Fig. 9 illustrates the dynamic T model augmented with the stator-iron-loss resistance R Fe,s [17], [18] and the stray-loadloss resistance R Fe,σ [19]. The losses related to constant R Fe,s and R Fe,σ are proportional to ω 2 s ψ 2 s and ω 2 r ψ 2 rσ , respectively, in steady state.…”

Section: Discussionmentioning

confidence: 99%

Modeling of Mutual Saturation in Induction Machines

Tuovinen¹,

Hinkkanen²,

Luomi³

2008

2008 IEEE Industry Applications Society Annual Meeting

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Abstract-Mutual saturation between the main flux and the rotor leakage flux appears in induction machines, especially if the rotor slots are skewed or closed. Conventional saturation models used in connection with dynamic equivalent-circuit models do not take this phenomenon into account. In this paper, explicit functions for modeling the mutual saturation are proposed. The proposed functions are physically reasonable, they are easy to fit, and the number of their parameters is small. The proposed functions can be used in real-time applications and in computer simulations where high accuracy and physical consistency are preferable. The model fits well to the data obtained from finite element analysis or experimental data of a 2.2-kW motor.

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Section: Discussionmentioning

confidence: 99%

Modeling of Mutual Saturation in Induction Machines

Tuovinen¹,

Hinkkanen²,

Luomi³

2008

2008 IEEE Industry Applications Society Annual Meeting

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“…As stated in [17], the T-equivalent dynamic model is more complex than necessary in the case of linear magnetics, and it is inadequate for use when the machine is saturated. Saturation effects appearing in machines equipped with closed or skewed rotor slots can be conveniently included in the Γ-equivalent model shown in Fig.…”

Section: Machine Modelmentioning

confidence: 99%

“…If needed, the iron losses can be taken into account separately [17], [19], [20]. A short-circuited rotor winding will be considered in this paper, i.e.…”

Section: Machine Modelmentioning

confidence: 99%

Modeling of Saturation Due to Main and Leakage Flux Interaction in Induction Machines

Tuovinen¹,

Hinkkanen²,

Luomi³

2010

IEEE Trans. on Ind. Applicat.

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Abstract-Saturation due to the main flux and rotor leakage flux interaction appears in induction machines, especially if the rotor slots are skewed or closed. Conventional saturation models used in connection with dynamic equivalent-circuit models do not take this phenomenon into account. In this paper, explicit functions for modeling this mutual saturation are proposed. These functions are physically reasonable, they are easy to fit, and the number of their parameters is small. The proposed functions can be used in real-time applications and in computer simulations if high accuracy and physical consistency are preferable. The model fits well to the data obtained from finite element analysis or experimental data of a 2.2-kW motor. The model predicts the stator current with good accuracy both in steady state and in transients.

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“…Thus, the parameters obtained in the identification correspond to the Γ-equivalent circuit [14], and the magnetizing inductance is obtained as L m0 = L s0 −L sσ = L s0 . To avoid inconsistency with the operating-point data, the expressionsî r0 =ψ s0 /L m0 − i s0 (36)…”

Section: B Compensation Of Skin Effectmentioning

confidence: 99%

Rotor parameter identification of saturated induction machines

Ranta

Hinkkanen

Luomi

2009

2009 IEEE Energy Conversion Congress and Exposition

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Abstract-An induction machine model is proposed for the identification of rotor parameters using high-frequency signal injection. The model includes both the magnetic saturation caused by the fundamental-wave components and the frequency dependence encountered in the signal injection method. Both the skin effect in the rotor winding and the eddy current losses in the rotor core are taken into account. Sinusoidal signal injection is used at several frequencies, and the model parameters are fitted to the results. The rotor leakage inductance and the rotor resistance valid at low slip frequencies are also obtained from the model directly. Experimental results for a 45-kW machine are presented. It is shown that the model fits well to the measured data in various operating points, and the accuracy of the identified parameters is good.

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Modelling of induction machines for electric drives

Cited by 260 publications

References 7 publications

Modeling of Mutual Saturation in Induction Machines

Modeling of Mutual Saturation in Induction Machines

Modeling of Saturation Due to Main and Leakage Flux Interaction in Induction Machines

Rotor parameter identification of saturated induction machines

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