초록 ▼

A field control apparatus for a generator having a field winding comprises a terminal voltage control unit for controlling a field current of the generator in accordance with a difference between a terminal voltage signal of the generator and a reference voltage signal, which control unit has at lea

A field control apparatus for a generator having a field winding comprises a terminal voltage control unit for controlling a field current of the generator in accordance with a difference between a terminal voltage signal of the generator and a reference voltage signal, which control unit has at least one of a line drop compensation function, an under-excitation limitation function, an over-excitation limitation function, a power factor regulation function, an armature winding over-current compensation function and a cross-current compensation function. The field control apparatus includes a detector as a common signal source for detecting active power and reactive power components at an output terminal of the generator and means responsive to the output of the detector for performing scalar operation in accordance with a function of the added compensation/control function described above. An output of the operating means is added to the differential signal as an added function signal to control the field current for excitation of the field winding.

대표청구항 ▼

A regulator system for an alternating circuit generator having a field excitation winding and output terminals connected to an electrical system comprising: excitation means for supplying an excitation current to the field winding of the generator; control circuit means connected to the input of sai

A regulator system for an alternating circuit generator having a field excitation winding and output terminals connected to an electrical system comprising: excitation means for supplying an excitation current to the field winding of the generator; control circuit means connected to the input of said excitation means for controlling the magnitude of the excitation current supplied to the field excitation winding of the generator; detector means for detecting and providing outputs of active and reactive power signals from the output of the generator in the form of scalar quantity; compensation/control value determining means responsive to the output of said detector, for determining a compensation/control value for at least one operationally varying factor to be regulated in the generator depending on a predetermined function correlated with active and reactive power signals; control signal generating means connected to the input of said control circuit, including first means for providing an output signal responsive to the difference between the output voltage of said generator and a reference voltage of predetermined magnitude and second means for summing the output signal of said first means and the compensation/control value as the output of said compensation/control value determining means.