• Title/Summary/Keyword: Electric Machinery

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Analysis of Torque Characteristic Considering The Dimensional Tolerance of BLDC Motor (치수공차를 고려한 BLDC 전동기의 토크 특성 해석)

  • Kim, Young-Kyoun;Hong, Jung-Pyo;Hur, Jin;Sung, Ha-Kyong
    • Proceedings of the KIEE Conference
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    • 2003.07b
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    • pp.750-752
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    • 2003

  • This paper presents a method of tolerance analysis for a electric machine. Tolerance analysis technique is required to find the tolerance band of design variables and estimate the characteristic distribution of the electric machine, because that manufacturing tolerances as well as measuring errors have a great influence on the electric machine. Therefore, this paper introduces Stochastic Response Surface Methodology to achieve the tolerance analysis. As an example, the tolerance analysis is applied to the analysis of torque characteristics for a BLDC motor from the electric point of view.

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The study on the characteristics of operating limit of low voltage electric machine under the effects of voltage quality (전압품질이 저압 전기기기 운전에 미치는 특성연구)

  • Park, In-Deok;Lee, Geun-Joon
    • Proceedings of the KIEE Conference
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    • 2007.07a
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    • pp.33-35
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    • 2007

  • This paper studies on operating limit curve of low voltage electric machinery with respect to source voltage variation or sag. Also, it discusses electric machine and compensation equipment design methodology based on voltage quality effect assessment technology. Voltage quality standards, such as SEMI47, CBEMA, ITIC curve are regarded to examine the relation between time constants of load and sagging time of sag generator, the load(low voltage electric machinery) study. Voltage sag characteristics of loads, time constant and sag relation voltage-time operating limits are tested and verified.

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