论文信息 - Core loss evaluation of segment core in turbine generators by torque method

Core loss evaluation of segment core in turbine generators by torque method

This paper presents core loss evaluation of a turbine generator model stator. The stator configuration does not make the magnetic flux distribution uniform, and the induction harmonics make the core loss calculation difficult. In this evaluation, the core losses are measured by rotating stator torque. As a result of the measurements, a half-lap-stacked stator obtains lower core losses and larger percentage of eddy current losses than a block-stacked stator. In addition, a gap between each segment makes in-plane eddy current loss increase. © 2006 Wiley Periodicals, Inc. Electr Eng Jpn, 158(2): 64–71, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20407

[1] Kazumasa Ide,et al. Calculation of losses and temperature rises at the stator core ends of air cooled turbine generators considering the stator slot end field , 2003 .

[2] Kazumasa Ide,et al. Development of a Calculation Program for Evaluation of the Stator Core End Design of Air Cooled Turbine Generators , 2002 .

[3] Takashi Watanabe,et al. A sophisticated maximum capacity analysis for large turbine generators considering limitation of temperature , 2003, IEEE International Electric Machines and Drives Conference, 2003. IEMDC'03..

[4] A. G. Jack,et al. Calculation of three-dimensional electromagnetic fields involving laminar eddy currents , 1987 .

[5] Kazumasa Ide,et al. Analysis of No-load Iron Losses of Turbine Generators by 3D Magnetic Field Analysis , 2004 .

[6] Peter Tavner. Cross-magnetisation effects in electrical machines , 2004 .

[7] Chikara Kaido,et al. Mechanical method of iron loss measurement in a rotational field and analysis of iron loss in a motor , 1991 .