Steady-State Thermal Modeling of Salient Pole Synchronous Generator

Payam Shams Ghahfarokhi; Andrejs Podgornovs; Ants Kallaste; Antonio J. Marques Cardoso; Anouar Belahcen; Toomas Vaimann; Oleg Kudrjavtsev; Bilal Asad; Muhammad Naveed Iqbal

doi:10.3390/en15249460

Steady-State Thermal Modeling of Salient Pole Synchronous Generator

Payam Shams Ghahfarokhi^*, Andrejs Podgornovs, Ants Kallaste, Antonio J. Marques Cardoso, Anouar Belahcen, Toomas Vaimann, Oleg Kudrjavtsev, Bilal Asad, Muhammad Naveed Iqbal

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

This paper presents a practical thermal model of a synchronous generator for high-power applications. This model couples the lumped parameter thermal network and coolant network together to utilize the impact of the coolant’s temperature rising over the machine. Furthermore, the advanced multi-planes technique provides a more precise and higher resolution temperature distribution of various machine sections. Therefore, the machines are divided into five planes; three belong to the active part, and two are added to model the machine’s drive and non-drive end-regions. Furthermore, the paper pays special attention to describing the challenges and providing solutions to them during the heat transfer modeling and analysis. Finally, the analytical model is verified using experimental results on a synchronous generator with a salient pole rotor and an open self-ventilation (OSV) cooling system by comparing the analytical and experimental results. As a result, good correspondence between the estimated and measurement results is achieved.

Original language	English
Article number	9460
Number of pages	15
Journal	Energies
Volume	15
Issue number	24
DOIs	https://doi.org/10.3390/en15249460
Publication status	Published - Dec 2022
MoE publication type	A1 Journal article-refereed

Keywords

AC machines
coolant network
cooling
electrical machines
lumped parameter network
temperature measurement
thermal analysis

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/en15249460

energies-15-09460-v3Final published version, 3.14 MBLicence: CC BY

Cite this

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title = "Steady-State Thermal Modeling of Salient Pole Synchronous Generator",

abstract = "This paper presents a practical thermal model of a synchronous generator for high-power applications. This model couples the lumped parameter thermal network and coolant network together to utilize the impact of the coolant{\textquoteright}s temperature rising over the machine. Furthermore, the advanced multi-planes technique provides a more precise and higher resolution temperature distribution of various machine sections. Therefore, the machines are divided into five planes; three belong to the active part, and two are added to model the machine{\textquoteright}s drive and non-drive end-regions. Furthermore, the paper pays special attention to describing the challenges and providing solutions to them during the heat transfer modeling and analysis. Finally, the analytical model is verified using experimental results on a synchronous generator with a salient pole rotor and an open self-ventilation (OSV) cooling system by comparing the analytical and experimental results. As a result, good correspondence between the estimated and measurement results is achieved.",

keywords = "AC machines, coolant network, cooling, electrical machines, lumped parameter network, temperature measurement, thermal analysis",

author = "{Shams Ghahfarokhi}, Payam and Andrejs Podgornovs and Ants Kallaste and {Marques Cardoso}, {Antonio J.} and Anouar Belahcen and Toomas Vaimann and Oleg Kudrjavtsev and Bilal Asad and Iqbal, {Muhammad Naveed}",

note = "Funding Information: This work has been supported by the European Regional Development Fund within the Activity 1.1.1.2 “Postdoctoral Research Aid” of the Specific Aid Objective 1.1.1 “To increase the research and innovative capacity of scientific institutions of Latvia and the ability to attract external financing, investing in human resources and infrastructure” of the Operational Programme “Growth and Employment” (No.1.1.1.2/VIAA/3/19/501). Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = dec,

doi = "10.3390/en15249460",

language = "English",

volume = "15",

journal = "Energies",

issn = "1996-1073",

publisher = "MDPI AG",

number = "24",

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TY - JOUR

T1 - Steady-State Thermal Modeling of Salient Pole Synchronous Generator

AU - Shams Ghahfarokhi, Payam

AU - Podgornovs, Andrejs

AU - Kallaste, Ants

AU - Marques Cardoso, Antonio J.

AU - Belahcen, Anouar

AU - Vaimann, Toomas

AU - Kudrjavtsev, Oleg

AU - Asad, Bilal

AU - Iqbal, Muhammad Naveed

N1 - Funding Information: This work has been supported by the European Regional Development Fund within the Activity 1.1.1.2 “Postdoctoral Research Aid” of the Specific Aid Objective 1.1.1 “To increase the research and innovative capacity of scientific institutions of Latvia and the ability to attract external financing, investing in human resources and infrastructure” of the Operational Programme “Growth and Employment” (No.1.1.1.2/VIAA/3/19/501). Publisher Copyright: © 2022 by the authors.

PY - 2022/12

Y1 - 2022/12

N2 - This paper presents a practical thermal model of a synchronous generator for high-power applications. This model couples the lumped parameter thermal network and coolant network together to utilize the impact of the coolant’s temperature rising over the machine. Furthermore, the advanced multi-planes technique provides a more precise and higher resolution temperature distribution of various machine sections. Therefore, the machines are divided into five planes; three belong to the active part, and two are added to model the machine’s drive and non-drive end-regions. Furthermore, the paper pays special attention to describing the challenges and providing solutions to them during the heat transfer modeling and analysis. Finally, the analytical model is verified using experimental results on a synchronous generator with a salient pole rotor and an open self-ventilation (OSV) cooling system by comparing the analytical and experimental results. As a result, good correspondence between the estimated and measurement results is achieved.

AB - This paper presents a practical thermal model of a synchronous generator for high-power applications. This model couples the lumped parameter thermal network and coolant network together to utilize the impact of the coolant’s temperature rising over the machine. Furthermore, the advanced multi-planes technique provides a more precise and higher resolution temperature distribution of various machine sections. Therefore, the machines are divided into five planes; three belong to the active part, and two are added to model the machine’s drive and non-drive end-regions. Furthermore, the paper pays special attention to describing the challenges and providing solutions to them during the heat transfer modeling and analysis. Finally, the analytical model is verified using experimental results on a synchronous generator with a salient pole rotor and an open self-ventilation (OSV) cooling system by comparing the analytical and experimental results. As a result, good correspondence between the estimated and measurement results is achieved.

KW - AC machines

KW - coolant network

KW - cooling

KW - electrical machines

KW - lumped parameter network

KW - temperature measurement

KW - thermal analysis

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DO - 10.3390/en15249460

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JO - Energies

JF - Energies

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ER -

Steady-State Thermal Modeling of Salient Pole Synchronous Generator

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Keywords

UN SDGs

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