Electric train drive control device

A drive control device for an electric train comprises a switch for connecting or opening direct-current power, a power converter into which the direct-current power is input via the switch between two terminals on an input side and which converts the direct-current power into alternating-current po...

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Bibliographische Detailangaben
1. Verfasser:	KUSANO KENICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A drive control device for an electric train comprises a switch for connecting or opening direct-current power, a power converter into which the direct-current power is input via the switch between two terminals on an input side and which converts the direct-current power into alternating-current power through a switching action and drives an alternating current rotating machine connected on an output side, and a voltage detector for detecting the voltage between the two terminals. In addition, a power controller is provided that controls the power converter such that when the detected voltage of the voltage detector exceeds a predetermined open-circuit voltage, the switch is opened and the regenerative brake force is reduced by the alternating current rotating machine under a predetermined reduction pattern having a ramp reduction time longer than 0.