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CN105490599A 用于确定双馈感应发电机的漏电感的方法和设备 有权 转让

用于确定双馈感应发电机的漏电感的方法和设备
摘要：
一种用于确定双馈感应发电机DFIG(10)的漏电感的方法和设备以及包括该设备的逆变器和变频器。所述方法包括：响应于DFIG的定子电流等于或小于第一预定阈值，确定DFIG的定子电压值、转子电压值和转子电流值，并且基于所确定的值来计算DFIG的转子漏电感；以及，响应于DFIG的转子电流等于或小于第二预定阈值，确定DFIG的定子电压值、转子电压值和定子电流值，并且基于所确定的值来计算DFIG的定子漏电感。
摘要（英）：

A method and arrangement for determining leakage inductances of a double fed induction generator, DFIG, (10) wherein, in response to the stator current of the DFIG being equal to or below a first predetermined threshold, values of a stator voltage, a rotor voltage and a rotor current of the DFIG are determined, and a rotor leakage inductance of the DFIG is calculated on the basis the determined values, and, in response to the rotor current of the DFIG being equal to or below a second predetermined threshold, values of the stator voltage, the rotor voltage and the stator current of the DFIG are determined, and a stator leakage inductance of the DFIG is calculated on the basis of the determined values.

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