A thermohydraulic modelling for the stator bars of large turbogenerators: Development, validation by laboratory and on site tests.

被引：7

作者：

Rioual, M

机构：

[1] Electricité de France - Direction des Etudes et Recherches, 92141 Clamart, 1, ave. du Gen. de Gaulle

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 1997年 / 12卷 / 01期

关键词：

turbogenerators; stator; heat transfer; thermal modelling; hot spots; water cooling; field effect; program; maintenance;

D O I：

10.1109/60.577273

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper presents a thermohydraulic model of stator bars in large turbogenerators. From the losses dissipated in a bar and considering the heat transfer by conduction and convection, it calculates the hot spot temperatures in it and the slot thermocouple temperature, for a clean or polluted stator. This model has been validated by laboratory tests made on individual bars and also by on site measurements made on a 900 MW turbogenerator. It shows the difficulty for the detection of hot spots by a slot thermocouple, and its systematic detection by the water temperature measurement at the bar outlet end. The modelling may be applicable for water-cooled machines ranging from 600 MW up to 1500 MW.

引用

页码：1 / 9

页数：9

共 33 条

[1] Transpositions in stator bars of large turbogenerators
Haldemann, J
[J]. IEEE TRANSACTIONS ON ENERGY CONVERSION, 2004, 19 (03) : 553 - 560
[2] Development of an aerosol sampling assay: Biohazard evaluation of laboratory hematology tests.
Hull, BP
Ryu, J
Houwen, B
[J]. JOURNAL OF INVESTIGATIVE MEDICINE, 1996, 44 (01) : A127 - A127
[3] Energization of a no-load transformer for power restoration purposes: Modeling and validation by on site tests.
Rioual, M
Sicre, C
[J]. 2000 IEEE POWER ENGINEERING SOCIETY WINTER MEETING - VOLS 1-4, CONFERENCE PROCEEDINGS, 2000, : 2239 - 2244
[4] Development of a Finite-Element-Model for Transient Thermal Analysis of Thermal Cycle Tests on Stator Bars for Large Rotating Machines
Staubach, Christian
Foelting, Christian
Anvari, Amir Taghipour
Jenau, Frank
[J]. CONFERENCE RECORD OF THE 2012 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATION (ISEI), 2012, : 341 - 345
[5] Improving the accuracy and overall value of stator winding insulation assessments for operational generators, through laboratory based insulation research tests on stator bars
vanderMerwe, H
Rasekhi, P
Volk, NR
[J]. AFRICON '96 - 1996 IEEE AFRICON : 4TH AFRICON CONFERENCE IN AFRICA, VOLS I & II: ELECTRICAL ENERGY TECHNOLOGY; COMMUNICATION SYSTEMS; HUMAN RESOURCES, 1996, : 447 - 450
[6] Determination of the saturated inductance of transformers by analytical formulae, comparison with an electromagnetic field calculation approach and validation by on-site tests.
Rioual, Michel
Guillot, Yves
Crepy, Cyrille
[J]. 2009 IEEE BUCHAREST POWERTECH, VOLS 1-5, 2009, : 3053 - 3058
[7] Laboratory tests and numerical modelling of large displacements of an elasto-plastic cylindrical shell
Kaliszuk, J
Marcinowski, J
Waszczyszyn, Z
[J]. SHELL STRUCTURES: THEORY AND APPLICATIONS, 2005, : 477 - 480
[8] Analysis of accelerated multi-factor aging tests on the winding insulation system of generator stator bars used in large rotating machines
Cimino, Alessandro
Staubach, Christian
Jenau, Frank
[J]. 2018 IEEE ELECTRICAL INSULATION CONFERENCE (EIC), 2018, : 110 - 113
[9] Implementation and analysis of multi-factor aging tests on the winding insulation of original sized generator stator bars used in large rotating machines
Foelting, C.
Jenau, F.
[J]. 2014 INTERNATIONAL CONFERENCE ON HIGH VOLTAGE ENGINEERING AND APPLICATION (ICHVE), 2014,
[10] Surveillance for Hepatocellular Carcinoma: Development and Validation of an Algorithm to Classify Tests in Administrative and Laboratory Data
Peter Richardson
Louise Henderson
Jessica A. Davila
Jennifer R. Kramer
Conar P. Fitton
G. John Chen
Hashem B. El-Serag
[J]. Digestive Diseases and Sciences, 2010, 55 : 3241 - 3251

← 1 2 3 4 →