A Comparison of direct and indirect measurement of induction motor efficiency

被引：15
作者：
Agamloh, Emmanuel B. [1 ]
机构：
[1] Adv Energy Corp, Raleigh, NC 27606 USA
来源：
2009 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE, VOLS 1-3 | 2009年
关键词：
Efficiency; stray load losses; IEEE Std. 112; AGREEMENT;
D O I：
10.1109/IEMDC.2009.5075180
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Induction machine efficiency is defined as the ratio of output power to input power. The efficiency determined from this ratio is known as the direct efficiency. Alternatively, the efficiency is often determined by first determining the losses and using either the input power or the output power to calculate the efficiency. This method, known in standards as the loss segregation method is an indirect method that is known to yield a more accurate result if the stray load losses are properly determined. However, the indirect method is complicated; it requires skilled operator and is time consuming. On the other hand, the direct method is relatively simple and less time consuming. The question is by how much the efficiency numbers produced by these two methods differ. This paper presents a comparison of the two methods from a collection of test data of about 1000 induction motors, rated 1-250hp, to show the relative accuracy of the direct method. The Bland-Altman procedure for comparing measurement methods is used in the analysis.
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页码：36 / 42
页数：7
相关论文
共 15 条
  • [1] AGAMLOH EB, 2009, REPEATABILITY IEEE S
  • [2] [Anonymous], 2007, 6003421 IEC
  • [3] [Anonymous], 1122004 IEEE
  • [4] AUINGER H, 2002, POWER ENG J DEC
  • [5] Bland JM, 1999, STAT METHODS MED RES, V8, P135, DOI 10.1177/096228029900800204
  • [6] STATISTICAL METHODS FOR ASSESSING AGREEMENT BETWEEN TWO METHODS OF CLINICAL MEASUREMENT
    BLAND, JM
    ALTMAN, DG
    [J]. LANCET, 1986, 1 (8476) : 307 - 310
  • [7] BOGLIETTI A, INT STANDARDS INDUCT
  • [8] CAO W, 2006, 41 IEEE IAS ANN C OC
  • [9] *CSA, 1993, 3901993 CSA
  • [10] GRAY GG, 1996, IEEE T ENERGY CONVER, V11
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