Comparison of field and circuit generator models in single machine infinite bus system simulations

Lidenholm, Johan; Ranlöf, Martin; Lundin, Urban

doi:10.1109/icelmach.2010.5608259

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…Another means of obtaining parameters for the two-axis model is extraction of equivalent parameters from the FE model. This approach has been explored by the authors in a similar study [25]. Here, we have however deliberately chosen to use parameters obtained from a code used by generator designers to assess typical differences between coupled field-circuit and twoaxis model approaches in the present context.…”

Section: Circuit Modelmentioning

confidence: 98%

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Ranlöf

Bladh

Lundin

2013

International Journal of Electrical Power & Energy Systems

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Section: Circuit Modelmentioning

confidence: 98%

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Ranlöf

Bladh

Lundin

2013

International Journal of Electrical Power & Energy Systems

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Methods for Determining Losses and Parameters of Cylindrical-Rotor Medium-Power Synchronous Generators

Komeza,

Dems

2024

Electronics

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This paper presents the analytical and numerical application of a method to determine the parameters and power losses in the core of two medium-power synchronous generators. These generators are used as emergency power sources powered by diesel engines, gas engines, and gas turbines. They cover peak electricity demand but can also be used in traction drives. This article presents a new numerical method for determining losses in the generator core based on the use of a time-stepping solution using the FEM method and calculating these losses using analytical formulas. In calculating the losses for the FEM method, approximations of the loss characteristics of the sheet were used with a wide range of induction values and frequencies. This method is specific to the solution used and was adapted from the authors’ previous work on losses in induction machines. A one-phase winding with alternating voltage was supplied to determine the basic parameters in the form of synchronous reactance. Also, an important novelty is the introduction of a new method of determining the saturation state of the magnetic circuit, which significantly affects the machine parameters. The obtained results were used in analytical calculations and implemented in a computer program that allows for the calculation of electromagnetic parameters, operating characteristics, and core losses, taking into account additional losses, total losses, and efficiency, as well as machine parameters in unsteady operating states and the current characteristics of a three-phase symmetrical short circuit at the machine terminals. The calculations obtained were verified experimentally by measurements of real machines.

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Comparison of field and circuit generator models in single machine infinite bus system simulations

Cited by 2 publications

References 16 publications

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Use of a finite element model for the determination of damping and synchronizing torques of hydroelectric generators

Methods for Determining Losses and Parameters of Cylindrical-Rotor Medium-Power Synchronous Generators

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