DRIVE DEVICE FOR ELECTRIC ROLLING STOCK

PURPOSE:To suppress the power loss of a field coil to a low value by supplementing the insufficient magnetic flux by the field of an electromagnet at a high load time by using a permanent magnet field only at a low load time. CONSTITUTION:A field control transistor 13 has zero current flow rate in t...

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Bibliographische Detailangaben
1. Verfasser:	ENDOU TAKUYA
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 DYNAMO-ELECTRIC MACHINES 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:	PURPOSE:To suppress the power loss of a field coil to a low value by supplementing the insufficient magnetic flux by the field of an electromagnet at a high load time by using a permanent magnet field only at a low load time. CONSTITUTION:A field control transistor 13 has zero current flow rate in the normally running state of a vehicle, no current flows through a field coil 10, and only the magnetic flux of a permanent magnet field 8 is only acted to an armature 2. When the load of the motor increases, the current flow rate of a main transistor 12 increases correspondingly, and the output of the motor is increased by raising the applied voltage of the armature 2. When the load of the motor further increases, the transistor 13 will operate, and a current is flowed to the coil 10. Therefore, the output of the motor further increases.