CONTROL DEVICE AND CONTROL METHOD FOR POWER CONVERTER

The power converter (50) includes a first operation mode in which each of switching elements (S 1 to S4) is controlled on or off independently so as to perform a power conversion between a load (30) and both a first DC power source (10) and a second DC power source (20) and a second operation mode i...

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Bibliographische Detailangaben
Hauptverfasser:	ISHIGAKI, Masanori, TOMURA, Shuji, NOBE, Daigo, OKAMURA, Masaki, UMENO, Takaji
Format:	Patent
Sprache:	eng ; fre ; 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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF 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 SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The power converter (50) includes a first operation mode in which each of switching elements (S 1 to S4) is controlled on or off independently so as to perform a power conversion between a load (30) and both a first DC power source (10) and a second DC power source (20) and a second operation mode in which every two of the switching elements (S 1 to S4) are controlled on or off concurrently so as to perform the power conversion between the load (30) and the first DC power source (10) or the second DC power source (20). A switching speed at which when each of the switching elements (S 1 to S4) is turned on or turned off is controlled in accordance with the operation mode. Specifically, the switching speed in the second operation mode is higher than the switching speed in the first operation mode.