Transient Voltage Distribution in Stator Winding of Electrical Machine Fed from a Frequency Converter


The methods of predicting the magnitude and distribution of fast voltage within the stator winding of an electric machine fed from a frequency converter are developed. The three methods of predicting the magnitude and distribution of fast voltages within form windings commonly used in medium and high voltage machines are described. These methods utilize some aspects of published works on the surge propagation studies to achieve simplification of the solution without loss of accuracy. Two of these methods are applied to the voltage calculation in random winding commonly used in low voltage machines.

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