초록 ▼

A control apparatus for a synchronous generator system has: a voltage instruction generator for generating voltage instructions (V.sub.u *, V.sub.v *, V.sub.w *) based on an output power reference (P*) of the synchronous generator, currents (I.sub.u, I.sub.v) flowing through the synchronous generato

A control apparatus for a synchronous generator system has: a voltage instruction generator for generating voltage instructions (V.sub.u *, V.sub.v *, V.sub.w *) based on an output power reference (P*) of the synchronous generator, currents (I.sub.u, I.sub.v) flowing through the synchronous generator and position information (.theta..sub.0, .omega..sub.r) of magnetic poles of the synchronous generator; a zero crossing point detector for detecting a point that the voltage (V.sub.u) of the synchronous generator passes through zero volt.; and a magnetic pole position calculator for calculating the information (.theta..sub.0, .omega..sub.r) on the position of magnetic poles of the synchronous generator on the basis of the voltage instruction (V.sub.u *) and the power reference (P*) when the synchronous generator is under the generation mode, and on the basis of an output signal of the zero crossing point detector when the synchronous generator is under the stand-by mode.

대표청구항 ▼

[ We claim:] [1.] A control apparatus for a synchronous generator system, in which A.C. electric power produced by a synchronous generator is converted by a converter into D.C. electric power; comprising:a voltage instruction generator (113) for generating voltage instructions (V.sub.u *, V.sub.v *,

[ We claim:] [1.] A control apparatus for a synchronous generator system, in which A.C. electric power produced by a synchronous generator is converted by a converter into D.C. electric power; comprising:a voltage instruction generator (113) for generating voltage instructions (V.sub.u *, V.sub.v *, V.sub.w *) based on a reference (P*) for a power to be produced by the synchronous generator (102), currents (I.sub.u, I.sub.v) flowing through the synchronous generator (102) and information (.theta..sub.0, .omega..sub.r) concerning a position of magnetic poles of the synchronous generator (102); the converter (103) being operated in accordance with the thus generated voltage instructions (V.sub.u *, V.sub.v *, V.sub.w *);a zero crossing point detector (109) for detecting the point, at which the voltage (V.sub.u, V.sub.v, V.sub.w) of the synchronous generator (102) passes through a zero level of voltage; anda magnetic pole position calculator (114) for calculating the information (.theta..sub.0, .omega..sub.r) concerning the position of magnetic poles of the synchronous generator (102) on the basis of at least one of the voltage instructions (V.sub.u *, V.sub.v *, V.sub.w *) and the power reference (P*) when the synchronous generator (102) is under the generation mode, and on the basis of an output signal of said zero crossing point detector (109) when the synchronous generator (102) is under the stand-by mode.