三相异步电机起动数据在线效率测定

2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives Pub Date : 2009-10-23 DOI:10.1109/DEMPED.2009.5292795

F. Waldhart, J. Bacher

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引用次数: 2

摘要

有各种方法来确定三相感应电机的效率。但它们都有一个共同点，要么太不准确，要么不切实际。在本文中，机器的效率将从启动数据中得到。为此，必须测量所有定子电流和所有定子电压的时间依赖性。通常不可能在机器上安装速度传感器。因此，只能确定起动结束时的转速。给出了标准三相感应电机功率范围从3kw到500kw的实际结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Online efficiency determination of three phase asynchronous machines by start-up data

There are various methods to determine the efficiency of three phase induction machines. But all of them have in common that they are too inaccurate or they are impracticable. In this paper the machine efficiency will be derived from start up data. For that purpose the time dependence of all stator currents and all stator voltages have to be measured. Normally it isn't possible to mount a speed sensor on the machine. Therefore, only the speed at the end of the start up can be determined. Practical results with standard three phase induction machines with different power ranges from 3 kW up to 500 kW are presented.

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来源期刊

2009 IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives

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