CONTROLLER FOR GENERATOR MOTOR AND GENERATING SYSTEM USING THE SAME

PROBLEM TO BE SOLVED: To suppress the occurrence of overvoltage from a system, when an accident phase is detached from the system. SOLUTION: During the operation of DC power transmission equipment 36, the exciting winding wire of a generator motor 30 is AC-excited, based on a deviation between a vol...

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Bibliographische Detailangaben
Hauptverfasser:	MADORI IWAO, MOROMITSU AKIRA, ICHINOSE MASAYA, NISHIO TORU, AIHARA TAKASHI, FUTAMI MOTOO, KATO YUICHI, MINOGUCHI KIYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress the occurrence of overvoltage from a system, when an accident phase is detached from the system. SOLUTION: During the operation of DC power transmission equipment 36, the exciting winding wire of a generator motor 30 is AC-excited, based on a deviation between a voltage command value V and a voltage detection value Vf by the detection of a voltage detector 34, and the output voltage of the generator motor 30 is controlled constantly. When a stop signal is outputted from the DC power transmission equipment 36 accompanying accident of a system, a voltage command value Vo is dropped by a setting level by a voltage command value converter 14, in response to a signal from a stop signal detector 16. The output voltage of the generator motor 30 is dropped according to the deviation between a dropped voltage command value V and a detection voltage Vf. Namely, the output voltage of the generator motor 30 is dropped as a preceding control, before an accident phase is detached from the system.