CONTROLLER FOR ELECTRIC ROLLING STOCK

PURPOSE:To miniaturize the title device and lighten its weight, by dividing a filter circuit into a plurality, and by using optimum instruments for necessary specifications. CONSTITUTION:Power fed from a DC power source 1 is fed to a main motor 2 via a filter circuit and a switching element 3. Then,...

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Bibliographische Detailangaben
Hauptverfasser:	SAITO HIDEJI, AMIKURA SEIKI, ABE KINGO, HORIE SATORU, JINBO YOSHIJI, CHIYOU JINKOU
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To miniaturize the title device and lighten its weight, by dividing a filter circuit into a plurality, and by using optimum instruments for necessary specifications. CONSTITUTION:Power fed from a DC power source 1 is fed to a main motor 2 via a filter circuit and a switching element 3. Then, a filter condenser 7 must be worked according to voltage fluctuation at a point A, and so the oil condenser excellent in high frequency characteristic is used. By a filter condenser 5, voltage fluctuation at a point B is reduced, and so for the condenser 5, the electrolytic capacitor of a capacity larger than that of the oil condenser in case of the same volume is used. For filter reactors 4 and 6, the filter reactor 4 is provided with an intermediate tap. As a result, a filter can be miniaturized and the weight can be lightened.