Power converter for electrified railway drive - has phase advancing circuit connected in parallel with controlled rectifier of motor supply circuit

The power converter has a transformer (T) with a primary (N1) coupled across an AC supply and a number of secondaries (N21,N22) each coupled to a controlled rectifier. A DC motor is coupled across the outputs of the rectifiers connected in cascade and a phase advancing circuit is connected in parall...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUTAKE,MITSUGU, TADOKORO,TOMIO, TSUTSUI,YOSHIO, NAKAYAMA,TSUTOMU, KIMURA,AKIRA, KIWAKI,HISAKATSU
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The power converter has a transformer (T) with a primary (N1) coupled across an AC supply and a number of secondaries (N21,N22) each coupled to a controlled rectifier. A DC motor is coupled across the outputs of the rectifiers connected in cascade and a phase advancing circuit is connected in parallel with one of the controlled rectifiers. The phase advancing circuit has a number of phase advancing devices (PL1,PL2) with different capacitance values each in series with a thyristor switch (TSW1,TSW2) controlled in dependence on the transport mode of the drive.