System and method for suppressing DC link voltage buildup due to generator armature reaction

A controller (36) employed in conjunction with a synchronous generator (10) monitors the output voltage (V a , V b , V c ) of the generator. The controller employs the monitored output voltage as feedback that is used to control the excitation provided to an exciter field winding (20). In addition,...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	DEFENBAUGH, JOHN F, MADDALI, VIJAY K
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A controller (36) employed in conjunction with a synchronous generator (10) monitors the output voltage (V a , V b , V c ) of the generator. The controller employs the monitored output voltage as feedback that is used to control the excitation provided to an exciter field winding (20). In addition, the controller applies a control loop to the monitored output voltage that detects and modifies voltage ripple signals within the monitored output voltage to generate a compensated signal that is used to control the excitation to the exciter field winding. In particular, by detecting and modifying voltage ripple signals within the monitored output voltage, the controller is able to counteract armature reaction voltage ripples caused by unbalanced short-circuit faults, thereby preventing the build-up of voltage on the DC link.