【摘要】 指出整定同步发电机的无功电压（ＱＧＵＧ）特性是自动调节励磁（ＡＥＣ）装置最基本的功能之一，提出自动调节励磁装置的作用可等效为对同步电势在端电压方向的投影（Ｅｑｃｏｓδ）及同步电抗（Ｘｄ）的代换。当视转子电流恒定时，额定运行点的ｄＱＧ／ｄＵＧ取决于同步电抗Ｘｄ更多还原

【Abstract】 Setting reactive power voltage characteristic( Q G U G) of synchronous generator was one of the most basic function of automatic excitation control (AEC).The function of AEC is equal to the chang of projecting of e.m.f generated ( E q cos δ ) on end voltage ( U G) in phasor diagram for a synchronous generator and synchronous reactance ( X d ).Considering the constant rotor current,d Q G / d U G at nominal operating point is dependent on the synchronous reactance ( X d ).更多还原