Advanced Uncertainty Calculation Method for Converter-Fed Motor Loss Determining
Advanced Uncertainty Calculation Method for Converter-Fed Motor Loss Determining
复制标题
用于确定变流器供电电机损耗的先进不确定性计算方法
DOI：
10.1109/iemdc.2019.8785093
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
J. Pyrhönen
中科院分区：
文献类型：
--
作者：
H. Kärkkäinen;L. Aarniovuori;M. Niemelä;J. Pyrhönen
只有一种实用的方法来确定变频电机的损耗。该方法基于机械输出和电输入功率测量。当使用这种方法时，损耗测量不确定度是效率的函数。电动机效率随着额定功率的增加而非线性地增加。因此，电动机的额定功率越高，在分析效率测量结果时应越小心。本文针对15 kW、37 kW和75 kW三种不同额定功率的变频异步电动机，给出了从测量仪器数据表信息到最终测量不确定度结果的工作流程。结果适用于所有旋转场电机，无论技术如何。
There is only a single practical method to determine the losses of converted-fed electrical machines. The method is based on mechanical output and electrical input power measurements. When this method is used, the loss measurement uncertainty is a function of the efficiency. The electrical motor efficiency increases non-linearly with increasing rated power. Therefore, the higher the rated power of the motor is the more care should be laid in the analysis of the efficiency measurement results. Here, a workflow starting from measurement instruments' data sheet information to final measurement uncertainty result is presented for three converted-fed induction motors with different rated power of 15 kW, 37 kW and 75 kW. The results are applicable for all rotating field machines regardless of technology.