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Journal articles on the topic 'Salient pole synchronous generator'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Oo, Thant Zaw, and Aye Myo Thant. "Compatibility Design of Non-Salient Pole Synchronous Generator." International Journal of Trend in Scientific Research and Development Volume-3, Issue-4 (June 30, 2019): 991–94. http://dx.doi.org/10.31142/ijtsrd24026.

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2

Gozdowiak, Adam. "Faulty Synchronization of Salient Pole Synchronous Hydro Generator." Energies 13, no. 20 (October 20, 2020): 5491. http://dx.doi.org/10.3390/en13205491.

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This article presents the simulation results of hydro generator faulty synchronization during connection to the grid for various voltage phase shift changes in a full range (−180°; 180°). A field-circuit model of salient pole synchronous hydro generator was used to perform the calculation results. It was verified using the measured no-load and three-phase short-circuit characteristics. This model allowed observing the physical phenomena existing in the investigated machine, especially in the rotor which was hardly accessible for measurement. The presented analysis shows the influence of faulty synchronization on the power system stability and the construction components which are the most vulnerable to damage. From a mechanical point of view, the most dangerous case was for the voltage phase shift equal to −120°, and this case was analyzed in detail. Great emphasis was placed on the following physical quantities: electromagnetic torque, stator current, stator voltage, rotor current, current in rotor bars, and active and reactive power. The physical quantities existing during faulty synchronization were compared with a three-phase sudden short-circuit state. From this comparison, we selected the values of physical quantities that should be taken into account during design of new hydro generators to withstand the greatest possible threats during long-term work.

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3

Kutt, Filip, Michał Michna, and Grzegorz Kostro. "Non-Salient Brushless Synchronous Generator Main Exciter Design for More Electric Aircraft." Energies 13, no. 11 (May 27, 2020): 2696. http://dx.doi.org/10.3390/en13112696.

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This paper presents a prototype of high speed brushless synchronous generators (BSG) design for the application in autonomous electric power generation systems (e.g., airplane power grid). Commonly used salient pole field of the main generator part of BSG was replaced with a prototype non-salient pole field. The main objective of the research is an investigation into the advantages and disadvantages of a cylindrical field of the main generator part of BSG over the original salient pole field. The design process of the prototype generator is presented with a focus on the electromagnetic and mechanical finite element method (FEM) analysis. The measurements of prototype and commercial BSG were conducted for the nominal speed of 8 krpm. The advantages and disadvantages of the proposed solution were established based on measurements in load and no-load conditions.

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4

Ludwinek, Krzysztof, Roman Nadolski, and Jan Staszak. "Comparison of higher harmonic contents in salient pole synchronous generator with different rotor construction." Archives of Electrical Engineering 66, no. 1 (March 1, 2017): 121–39. http://dx.doi.org/10.1515/aee-2017-0009.

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Abstract The paper presents a comparison of higher harmonics in induced phase voltages of a stator winding in the no-load state of a three-phase 5.5 kVA salient pole synchronous generator. The comparison is carried out for the synchronous generator with different salient pole rotor constructions: a non-skewed solid rotor, a non-skewed solid rotor with radial incisions, and a laminated electrotechnical steel rotor with skewed slots and damping bars. The calculations of higher harmonics are based on the magnetic field distributions in the air gap, which are carried out in a 2D model in a FEMM program and on the induced voltage waveforms in the stator windings registered during experimental investigations of the 5.5 kVA salient pole synchronous generator in the no-load state.

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5

Ribeiro, R. L. A., C. M. S. Neto, F. B. Costa, T. O. A. Rocha, and R. L. Barreto. "A sliding-mode voltage regulator for salient pole synchronous generator." Electric Power Systems Research 129 (December 2015): 178–84. http://dx.doi.org/10.1016/j.epsr.2015.07.016.

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6

S.M. Mehedi Hasan and Abu Hena Md. Shatil. "Design and Comparison of grid connected Permanent Magnet Synchronous Generator Non-salient Pole and Salient Pole Rotor Wind Turbine." AIUB Journal of Science and Engineering (AJSE) 20, no. 2 (May 15, 2021): 40–46. http://dx.doi.org/10.53799/ajse.v20i2.136.

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Variable speed wind turbines are widely used wind energy conversion system (WECS). Among them doubly fed induction generator (DFIG) and permanent magnet synchronous generator (PMSG) are mostly used. PMSG based wind turbines are getting more popular in recent times because of their several advantages over other types. Direct drive capability and low speed operation are some of it’s significant advantage over other type. This paper describes two rotor types of grid connected PMSG, non-salient pole or round pole rotor and salient pole rotor and shows a comparative study between them. The mathematical model was designed and simulated using Matlab/Simulink. Simulation results have been shown to analyze their performances.

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7

MUTOH, Takuma, Akira OZAWA, Teppei IKUTA, Takumi ITO, Nobumichi FUJISAWA, and Yutaka OHTA. "Numerical Investigation of Internal Flow in a Salient Pole Synchronous Generator." Proceedings of Conference of Kanto Branch 2020 (March 13, 2020): 17B12. http://dx.doi.org/10.1299/jsmekanto.2020.17b12.

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8

Mandić, Ivan, Milica Pužar, and Marijan Petrinić. "Optimization of large electrical salient pole synchronous generators." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 20, no. 3 (September 2001): 813–27. http://dx.doi.org/10.1108/03321640110393932.

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9

Lopac, Nikola, Neven Bulic, and Niksa Vrkic. "Sliding Mode Observer-Based Load Angle Estimation for Salient-Pole Wound Rotor Synchronous Generators." Energies 12, no. 9 (April 27, 2019): 1609. http://dx.doi.org/10.3390/en12091609.

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Synchronous generator load angle is a fundamental quantity for power system stability assessment, with possible real-time applications in protection and excitation control systems. Commonly used methods of load angle determination require additional measuring equipment, while existing research on load angle estimation for wound rotor synchronous generator has been limited to the estimator based on the generator’s phasor diagram and estimators based on artificial neural networks. In this paper, a load angle estimator for salient-pole wound rotor synchronous generator, based on a simple sliding mode observer (SMO) which utilizes field current, stator voltages, and stator currents measurements, is proposed. The conventional SMO structure is improved with use of hyperbolic tangent sigmoid functions, implementation of the second order low-pass filters accompanied with corresponding phase delay compensation, and introduction of an adaptive observer gain proportional to the measured field current value. Several case studies conducted on a generator connected to a power system suggest that the proposed estimator provides an adequate accuracy during active and reactive power disturbances during stable generator operation, outperforming the classical phasor diagram-based estimator by reducing mean squared error by up to 14.10%, mean absolute error by up to 41.55%, and maximum absolute error by up to 8.81%.

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10

Matsui, Yasuhiro, Takahito Hayamizu, Kazuo Shima, Tadashi Fukami, Ryoichi Hanaoka, and Shinzo Takata. "A Salient-Pole Synchronous Generator with Permanent Magnets between the Field Poles." IEEJ Transactions on Industry Applications 129, no. 1 (2009): 109–16. http://dx.doi.org/10.1541/ieejias.129.109.

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11

Fukami, Tadashi, Takahito Hayamizu, Yasuhiro Matsui, Kazuo Shima, Ryoichi Hanaoka, and Shinzo Takata. "Steady-State Analysis of a Permanent-Magnet-Assisted Salient-Pole Synchronous Generator." IEEE Transactions on Energy Conversion 25, no. 2 (June 2010): 388–93. http://dx.doi.org/10.1109/tec.2010.2047037.

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12

Matsui, Yasuhiro, Takahito Hayamizu, Kazuo Shima, Tadashi Fukami, Ryoichi Hanaoka, and Shinzo Takata. "A salient-pole synchronous generator with permanent magnets between the field poles." Electrical Engineering in Japan 174, no. 4 (December 22, 2010): 58–67. http://dx.doi.org/10.1002/eej.21132.

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13

Matsuki, J., T. Katagi, and T. Okada. "Slot ripples in the damper windings of a salient-pole synchronous generator." IEEE Transactions on Energy Conversion 9, no. 1 (March 1994): 126–34. http://dx.doi.org/10.1109/60.282483.

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14

Nuzzo, Stefano, Michele Degano, Michael Galea, Chris Gerada, David Gerada, and Neil Brown. "Improved Damper Cage Design for Salient-Pole Synchronous Generators." IEEE Transactions on Industrial Electronics 64, no. 3 (March 2017): 1958–70. http://dx.doi.org/10.1109/tie.2016.2619321.

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15

Yaghobi, Hamid, Habib Rajabi Mashhadi, and Kourosh Ansari. "Artificial neural network approach for locating internal faults in salient-pole synchronous generator." Expert Systems with Applications 38, no. 10 (September 2011): 13328–41. http://dx.doi.org/10.1016/j.eswa.2011.04.157.

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16

Sarigiannidis, Athanasios G., C. Patsios, A. Pittaras, and A. Kladas. "Geometry Optimization of Synchronous Machines Used on Ship Shaft Generator Systems." Materials Science Forum 792 (August 2014): 245–50. http://dx.doi.org/10.4028/www.scientific.net/msf.792.245.

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In this paper, the geometry optimization and analysis of two synchronous machines for ship shaft generator applications was carried out. The use of shaft generators in marine applications is a convenient and effective way to supply electric energy to the ship, operating in conjunction with conventional diesel generators. On a first step, state of the art topologies of shaft generator systems are identified and evaluated. In addition, potential improvements in shaft generator systems are proposed. On a second step, a low-speed, direct-driven Permanent Magnet Synchronous Generator (PMSG) for shaft generator applications is designed and optimized in terms of torque production as well as efficiency. The PMSG is compared with an equal power Salient-Pole generator driven by a step-up gear, which is a set-up commonly used in shaft generator systems. The machines are evaluated and optimized in terms of torque production, efficiency and electromotive forces (EMF) harmonic content in nominal operating conditions.

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17

Kolondzovski, Zlatko, and Lidija Petkovska. "Determination of a synchronous generator characteristics via Finite Element Analysis." Serbian Journal of Electrical Engineering 2, no. 2 (2005): 157–62. http://dx.doi.org/10.2298/sjee0502157k.

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In the paper a determination of characteristics of a small salient pole synchronous generator (SG) is presented. Machine characteristics are determined via Finite Element Analysis (FEA) and for that purpose is used the software package FEMM Version 3.3. After performing their calculation and analysis, one can conclude that most of the characteristics presented in this paper can be obtained only by using the Finite Element Method (FEM).

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18

Blanc, Alexey. "The cascade equivalent A-H-circuit of the salient-pole generator on the base of the anisotropic model." International Journal of Electrical and Computer Engineering (IJECE) 11, no. 2 (April 1, 2021): 1123. http://dx.doi.org/10.11591/ijece.v11i2.pp1123-1129.

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In the scientific studies of the electric machines, cylindrical and Cartesian laminated models have long proved their operability when it is necessary to transform the general solutions of the partial differential equations into four-terminal network equations and to create the cascade equivalent circuits of the electric machines. In the case of the salient-pole machines, piecewise continuous Sturm-Liouville eigenfunctions are usually used as the general solution. Unfortunately, we cannot create the cascade equivalent circuit of the salient-pole electric machine when (to ensure both the uniqueness and the accuracy of the solution) the field is modeled with many piecewise continuous Sturm-Liouville eigenfunctions (in the zone of poles) and many sinusoidal functions (in the air gap). Nevertheless, the author developed the approximate method for modeling the magnetic field of the salient-pole electric machines when only one piecewise continuous Sturm-Liouville eigenfunction is used and many sinusoidal functions. In this case, it becomes possible to transform the general solution of the partial differential equation into four-terminal network equations and to create the cascade equivalent circuit of the salient-pole electric machine. In this paper, the cascade equivalent A-H-circuit of the synchronous salient-pole machine is considered (without using piecewise continuous Sturm-Liouville eigenfunctions but also without properties averaging).

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19

Shah Riman, Nur Iylia, Mohd Faris Abdullah, Mohd Fakhizan Romlie, and Zuhairi Baharudin. "The third harmonic generated voltage by salient-pole synchronous generator during 3-phase-to-ground fault." International Transactions on Electrical Energy Systems 27, no. 11 (August 1, 2017): e2401. http://dx.doi.org/10.1002/etep.2401.

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20

Deng, E., and N. A. Demerdash. "CFE-SS approach for salient-pole synchronous generators under unbalances." IEEE Transactions on Aerospace and Electronic Systems 33, no. 1 (January 1997): 142–62. http://dx.doi.org/10.1109/7.570733.

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21

Faiz, Jawad, Bashir Mahdi Ebrahimi, Mostafa Valavi, and Hamid A. Toliyat. "MIXED ECCENTRICITY FAULT DIAGNOSIS IN SALIENT-POLE SYNCHRONOUS GENERATOR USING MODIFIED WINDING FUNCTION METHOD." Progress In Electromagnetics Research B 11 (2009): 155–72. http://dx.doi.org/10.2528/pierb08110903.

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22

Babaei, Mojtaba, Jawad Faiz, Bashir Mahdi Ebrahimi, S. Amini, and Jalal Nazarzadeh. "A Detailed Analytical Model of a Salient-Pole Synchronous Generator Under Dynamic Eccentricity Fault." IEEE Transactions on Magnetics 47, no. 4 (April 2011): 764–71. http://dx.doi.org/10.1109/tmag.2011.2105498.

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23

Bazzo, Thiago de Paula Machado, Vinicius de Oliveira Moura, and Renato Carlson. "A Step-by-Step Procedure to Perform Preliminary Designs of Salient-Pole Synchronous Generators." Energies 14, no. 16 (August 14, 2021): 4989. http://dx.doi.org/10.3390/en14164989.

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This paper presents a straightforward step-by-step procedure to design salient-pole synchronous generators, starting with its main specifications and finishing with all necessary data to put it on production. As most of the electricity is generated by synchronous generators, the design of these machines remains an interesting subject, but, although it is important, it is difficult to find a complete step-by-step procedure in the literature. The proposed procedure can be followed by an electrical engineer or student and, distinctively from most papers and books, all steps are presented. Such a procedure is based on analytic calculations, eventually relying on finite element simulation to verify if everything is all right and to adjust some design parameters. All calculations have been chosen to keep the design as simple as possible; otherwise, it would not be possible to present all steps and procedures. Therefore, it can be used for beginners in the art of design-synchronous generators, applied to obtain an initial design, or be adopted by any electrical engineering course, not only aiming to be an introductory electrical machine design course but mainly to enhance the students’ comprehension of synchronous machines. The results have been compared with finite element simulation, presenting very small differences.

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24

Qiu, Hongbo, Xiaobin Fan, Jianqin Feng, and Cunxiang Yang. "Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 1 (January 2, 2018): 375–85. http://dx.doi.org/10.1108/compel-11-2016-0488.

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Purpose The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper winding is a key component for ensuring the reliable operation of generators. Therefore, it is important to study the distribution characteristics and the influence factors of eddy current loss. Taking a 24-MW bulb tubular turbine generator as a reference, the influence factors that affect the eddy current loss of damper winding are analyzed. Design/methodology/approach A two-dimensional (2-D) electromagnetic field model of the generator is established, and the correctness of the model is verified by comparing simulation results and experiment data. The eddy current losses of damper winding in various conditions are calculated by using the finite element method. Findings It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss of the generator rotor. When the generator is installed with magnetic slot wedges, the distribution characteristic of eddy current loss is obtained through the study of the eddy current density distributions in the damper bars. The variations of eddy current losses with time are gained when the generator has different permeability slot wedges, pole arc coefficients and pole shoe magnetic saturation degrees. Practical implications The study of this paper provides a theoretical reference for the design and optimization of bulb tubular turbine generator structure. Originality/value The research can help enhance the understanding of eddy current distribution characteristics and influence factors of eddy current loss in bulb tubular turbine generator.

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25

.Basil M. Saied, Dr, and Ahmed . H. Ahmed. "Mixed Air Gap Eccentricity Fault Diagnosis of a Salient Pole Synchronous Generator Based on Current Signature." AL-Rafdain Engineering Journal (AREJ) 23, no. 3 (July 28, 2015): 112–22. http://dx.doi.org/10.33899/rengj.2015.101564.

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26

Elez, Ante, Marijan Petrinic, Miroslav Petrinic, Babak Vaseghi, and Alireza Abasian. "SALIENT POLE SYNCHRONOUS GENERATOR OPTIMIZATION BY COMBINED APPLICATION OF SLOT SKEW AND DAMPER WINDING PITCH METHODS." Progress In Electromagnetics Research M 73 (2018): 81–90. http://dx.doi.org/10.2528/pierm18070508.

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27

Blanc, Alexey. "Exciting field and quadrature-axis armature reaction in a cascade equivalent A-H-circuit of a salient-pole generator." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 2 (April 1, 2020): 1674. http://dx.doi.org/10.11591/ijece.v10i2.pp1674-1681.

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Cartesian and cylindrical laminated models are well known in calculations of electric machines. In such models, general solutions of partial differential equations are transformed into four-terminal network equations, and this makes possible to synthesize cascade equivalent circuits of electric machines. In salient-pole machines, solutions of partial differential equations are formed on the base of piecewise continuous Sturm-Liouville eigenfunctions. However, in this case, cascade equivalent circuits cannot be synthesized since it needs many piecewise continuous eigenfunctions in the zone of poles and many smooth functions in the zone of the air gap for ensuring uniqueness of a solution. Meanwhile the author of this paper had offered an approximate method on the base of the single piecewise continuous Sturm-Liouville eigenfunction in the zone of poles and many smooth functions in the zone of the air gap. This method allows transforming a solution of a partial differential equation into four-terminal network equations and synthesizing cascade equivalent circuits of salient-pole machines. In this paper, electromagnetic field of a synchronous salient-pole generator is calculated with a cascade equivalent A-H-circuit. The cell that corresponds to rotor poles is synthesized on the base of a solution of Laplace's equation with the single piecewise continuous Sturm-Liouville eigenfunction.

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28

Faiz, Jawad, Mojtaba Babaei, Jalal Nazarzadeh, Bashir Mahdi Ebrahimi, and Sohrab Amini. "TIME-STEPPING FINITE-ELEMENT ANALYSIS OF DYNAMIC ECCENTRICITY FAULT IN A THREE-PHASE SALIENT POLE SYNCHRONOUS GENERATOR." Progress In Electromagnetics Research B 20 (2010): 263–84. http://dx.doi.org/10.2528/pierb10021003.

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29

Tabatabaei, I., J. Faiz, H. Lesani, and M. T. Nabavi-Razavi. "Modeling and Simulation of a Salient-Pole Synchronous Generator With Dynamic Eccentricity Using Modified Winding Function Theory." IEEE Transactions on Magnetics 40, no. 3 (May 2004): 1550–55. http://dx.doi.org/10.1109/tmag.2004.826611.

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30

Zhan, Yang, Kangkang Kong, Guorui Xu, Jinping Kang, and Haisen Zhao. "Analysis of Damper Transient Currents in Salient-Pole Synchronous Generator With Skewed Armature Slots Considering Interbar Currents." IEEE Transactions on Industry Applications 55, no. 1 (January 2019): 336–43. http://dx.doi.org/10.1109/tia.2018.2866480.

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31

Xu, Y., N. Maki, and M. Izumi. "Electrical Design Study of 10-MW Salient-Pole Wind Turbine HTS Synchronous Generators." IEEE Transactions on Applied Superconductivity 24, no. 6 (December 2014): 1–6. http://dx.doi.org/10.1109/tasc.2014.2338300.

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32

Yun, Jangho, Sang Bin Lee, Mladen Sasic, and Greg C. Stone. "Reliable Flux-Based Detection of Field Winding Failures for Salient Pole Synchronous Generators." IEEE Transactions on Energy Conversion 34, no. 3 (September 2019): 1715–18. http://dx.doi.org/10.1109/tec.2019.2917622.

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33

Keller, S., Mai Tu Xuan, and J. J. Simond. "Computation of the no-load voltage waveform of laminated salient-pole synchronous generators." IEEE Transactions on Industry Applications 42, no. 3 (May 2006): 681–87. http://dx.doi.org/10.1109/tia.2006.873663.

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34

Yamazaki, Katsumi, Kazuyoshi Nishioka, Kazuo Shima, Tadashi Fukami, and Keisuke Shirai. "Estimation of Assist Effects by Additional Permanent Magnets in Salient-Pole Synchronous Generators." IEEE Transactions on Industrial Electronics 59, no. 6 (June 2012): 2515–23. http://dx.doi.org/10.1109/tie.2011.2141104.

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35

Racewicz, Szymon, Filip Kutt, Michał Michna, and Łukasz Sienkiewicz. "Comparative Study of Integer and Non-Integer Order Models of Synchronous Generator." Energies 13, no. 17 (August 26, 2020): 4416. http://dx.doi.org/10.3390/en13174416.

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This article presents a comparison between integer and non-integer order modelling of a synchronous generator, in the frequency domain as well as in the time domain. The classical integer order model was compared to one containing half-order systems. The half-order systems are represented in a Park d-q axis equivalent circuit as impedances modelled by half-order transmittances. Using a direct method based on the approximation of the half-order derivatives by the Grünwald–Letnikov definition, a state-space equation system was solved. For both models, a computational program written in Matlab® software was used. For the purpose of time domain simulation, the machine models were connected to an electric load composed of an RL circuit. To validate and compare both models, simulation results of a three-phase short-circuit and a no-load voltage recovery were compared with corresponding measurements performed on a solid salient-pole synchronous generator of 125 kVA.

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36

Çelebi, M. "Weight optimisation of a salient pole synchronous generator by a new genetic algorithm validated by finite element analysis." IET Electric Power Applications 3, no. 4 (2009): 324. http://dx.doi.org/10.1049/iet-epa.2008.0126.

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37

Yamazaki, Katsumi, Kazuyoshi Nishioka, Kazuo Shima, Tadashi Fukami, and Keisuke Shirai. "Electromagnetic Field Analysis for Assist Effects of Permanent Magnets in Salient-Pole Synchronous Generators." IEEJ Transactions on Industry Applications 130, no. 10 (2010): 1182–88. http://dx.doi.org/10.1541/ieejias.130.1182.

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38

Nuzzo, Stefano, Michael Galea, Chris Gerada, and Neil Brown. "A Fast Method for Modeling Skew and Its Effects in Salient-Pole Synchronous Generators." IEEE Transactions on Industrial Electronics 64, no. 10 (October 2017): 7679–88. http://dx.doi.org/10.1109/tie.2017.2694378.

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39

Sinha, Amrita, D. N. Vishwakarma, and R. K. Srivastava. "Modeling and Simulation of Internal Faults in Salient-pole Synchronous Generators with Wave Windings." Electric Power Components and Systems 38, no. 1 (December 29, 2009): 100–114. http://dx.doi.org/10.1080/15325000903273338.

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40

Zarko, Damir, Drago Ban, Ivan Vazdar, and Vladimir Jarica. "Calculation of Unbalanced Magnetic Pull in a Salient-Pole Synchronous Generator Using Finite-Element Method and Measured Shaft Orbit." IEEE Transactions on Industrial Electronics 59, no. 6 (June 2012): 2536–49. http://dx.doi.org/10.1109/tie.2011.2160515.

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41

Paul, Sarbajit, and Junghwan Chang. "Model-based design of variable speed non-salient pole permanent magnet synchronous generator for urban water pipeline energy harvester." International Journal of Electrical Power & Energy Systems 125 (February 2021): 106402. http://dx.doi.org/10.1016/j.ijepes.2020.106402.

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42

Felicetti, Roberto, Curt Johan David Abrahamsson, and Urban Lundin. "The influence of eddy currents on the excitation winding impedance of solid and laminated salient pole synchronous machines." Electrical Engineering 102, no. 4 (July 1, 2020): 2553–66. http://dx.doi.org/10.1007/s00202-020-01053-z.

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Abstract This work investigates the establishment of steady-state eddy currents in solid and laminated salient poles and rotor rim of synchronous machines due to a periodic excitation voltage. It shows that the presence of eddy currents in the rotor magnetic circuit has the double effect of increasing the excitation winding AC-resistance and decreasing its magnetizing AC-inductance. According to that a simple analytical model is presented in here which allows a rapid rough estimation of the excitation winding AC-resistance when little information is available about the machine geometry and its electric/magnetic materials properties. The model is then verified by reproducing in frequency the excitation winding AC-resistance and the related power loss measured in two synchronous generators. Finally, the limits of reliability and applicability of the model are discussed. The model has implications for periodic field winding current control and voltage regulation in synchronous machines.

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43

Dente, J. A., and Paulo JosÃ© da Costa Branco. "A SIMPLE PATTERN RECOGNITION APPROACH FOR MONITORING INCIPIENT STATOR FAULTS IN SALIENT-POLE SYNCHRONOUS GENERATORS." Progress In Electromagnetics Research B 39 (2012): 163–78. http://dx.doi.org/10.2528/pierb12012103.

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44

Li, Dan, Weili Li, Jinyang Li, and Xiaoke Liu. "Analyzing regularity of interpolar air motion and heat dissipation coefficient distribution of a salient pole synchronous generator considering rotary airflow." International Communications in Heat and Mass Transfer 119 (December 2020): 104828. http://dx.doi.org/10.1016/j.icheatmasstransfer.2020.104828.

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45

Faiz, Jawad, Mojtaba Babaei, Jalal Nazarzadeh, Bashir Mahdi Ebrahimi, and Sohrab Amini. "Diagnosis and Magnetic Field Analysis of Small Power Salient-Pole Synchronous Generator with Static Eccentricity Using Time-Stepping Finite-Element Method." Electromagnetics 31, no. 3 (April 5, 2011): 173–91. http://dx.doi.org/10.1080/02726343.2011.558451.

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Cerpinska, Marina, Renars Vitols, and Oskars Simanis. "Electromagnetic Vibrations of Hydropower Generator Stator Core and Transformer Core at 100 Hz Frequency." Solid State Phenomena 260 (July 2017): 278–88. http://dx.doi.org/10.4028/www.scientific.net/ssp.260.278.

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Abstract:

This paper aimed to compare obtained results and collected theory for 100 Hz frequency vibration of hydropower generator stator core and transformer core. Electromagnetic vibration with 100 Hz frequency occurred both at slow-speed salient poles synchronous generator stator core and oil-filled power transformers tank, but the nature of hydropower and transformer 100 Hz vibration was different. The vibration analysis procedure and acceptable limits for hydropower generator stator core were already covered in the standards, while the health grade system for vibration measurements of power transformer has not beet yet developed. This study discussed the experimental results aiming to extend the knowledge about reasoning for non-existing statistical health grade system, based on power transformers vibrations, measured on tank. The experimental results of hydropower generator stator and power transformer spectrum were reported. Two salient pole hydropower generator stators and four transformers with different construction (including shell-type) and different cooling system (including air forced cooling system) were chosen to present vibration spectrum results. It was demonstrated that increasing clamping pressure of the core does not always reduce 100 Hz harmonic component neither for hydrogenerator stator, nor for transformer. Bad clamping pressure and defects in core, in contrary, will not result into increase of 100 Hz component for some units. Results showed that air forced cooling equipment (fans) would not add higher harmonics to vibration spectrum of the power transformer tank. It was shown that the shell-type construction of transformer core would not necessarily result in high vibration values on tank.

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Traxler‐Samek, Georg, Alexander Schwery, and Erich Schmidt. "Analytic calculation of the voltage shape of salient pole synchronous generators including damper winding and saturation effects." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 22, no. 4 (December 2003): 1126–41. http://dx.doi.org/10.1108/03321640310483057.

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Bi, D., X. Wang, W. Wang, Z. Q. Zhu, and D. Howe. "Improved Transient Simulation of Salient-Pole Synchronous Generators With Internal and Ground Faults in the Stator Winding." IEEE Transactions on Energy Conversion 20, no. 1 (March 2005): 128–34. http://dx.doi.org/10.1109/tec.2004.841509.

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Vanco, W., F. Silva, and J. Monteiro. "A Study of the Effects of Magnetic Saturation and Spatial Harmonics on Isolated Salient-Pole Synchronous Generators." IEEE Latin America Transactions 17, no. 01 (January 2019): 37–45. http://dx.doi.org/10.1109/tla.2019.8826693.

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KRUCHININA, Irina Yu, and Lyubov’ Yu SHTAINLE. "On Decreasing the Stator Winding Phase EMF Waveform Distortion Factorand Additional Iron Losses in the Stator of a Salient Pole Synchronous Generator." Elektrichestvo 11, no. 11 (2018): 45–48. http://dx.doi.org/10.24160/0013-5380-2018-11-45-48.

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