Power Factor Calculation by the Finite Element Method
Power Factor Calculation by the Finite Element Method
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有限元法功率因数计算
DOI：
10.1109/tmag.2010.2044146
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发表时间：
2010
影响因子：
2.1
通讯作者：
J. Cardoso
中科院分区：
文献类型：
--
作者：
C. D. da Silva;Francis Bidaud;Philippe Herbet;J. Cardoso
由于现代计算机的性能越来越好，在过去几年中，使用有限元分析（FEA）来设计电动机的情况显著增加。尽管分析软件仍然是最常用的工具，但有限元分析被广泛用于改进分析并给出最终设计原型。功率因数是电机制造商数据表的标准数据，因为它显示了电机消耗了多少无功功率，所以很重要。当电机连接到网络时，这些数据变得重要。然而，功率因数的计算并不是一件容易的事。由于饱和现象，输入电机电流具有不可忽视的高阶谐波。在这项工作中，有限元分析用于评估一种提出的（非限制性的）方法来估计小型单相感应电动机的功率因数或位移因数。仿真结果与试验结果进行了比较。
The use of finite element analysis (FEA) to design electrical motors has increased significantly in the past few years due the increasingly better performance of modern computers. Even though the analytical software remains the most used tool, the FEA is widely used to refine the analysis and gives the final design to be prototyped. The power factor, a standard data of motor manufactures data sheet is important because it shows how much reactive power is consumed by the motor. This data becomes important when the motor is connected to network. However, the calculation of power factor is not an easy task. Due to the saturation phenomena the input motor current has a high level of harmonics that cannot be neglected. In this work the FEA is used to evaluate a proposed (not limitative) methodology to estimate the power factor or displacement factor of a small single-phase induction motor. Results of simulations and test are compared.