Abstract

A method is presented for the advance calculation of the characteristic quantities of synchronous machines. The method is based on the determination of the frequency response xd(js), xq(js) from primary equivalent circuits with an approximate consideration of the solid rotor part in accordance with the machine geometry. The procedure is explained using a turbogenerator as a practical example. The characteristic values are determined for the standard model with two rotor circuits in each axis and are compared with the results of the short circuit and standstill frequency response tests.

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