POWER SUPPLY SYSTEM AND POWER CONVERSION APPARATUS WITH A PLURALITY OF POWER SOURCES CONNECTED IN PARALLEL

A plurality of power conversion apparatuses (10a to 10c) individually outputs AC power based on power input from a plurality of power sources (20a to 20c). A plurality of switches (S1a to S1c/S2a to S2c) to output power to an independent output path (3) is inserted into each of AC output paths (L1a...

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Bibliographische Detailangaben
1. Verfasser:	ISHIMOTO, KAZUO
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 ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A plurality of power conversion apparatuses (10a to 10c) individually outputs AC power based on power input from a plurality of power sources (20a to 20c). A plurality of switches (S1a to S1c/S2a to S2c) to output power to an independent output path (3) is inserted into each of AC output paths (L1a to L1c) of the plurality of power conversion apparatuses (10a to 10c). A plurality of drive signal lines (L2a to L2c/L3a to L3c) to transmit a drive signal from the plurality of power conversion apparatuses (10a to 10c) to the plurality of switches (S1a to S1c/S2a to S2c) is provided. The plurality of drive signal lines (L2a to L2c/L3a to L3c) has a coupling point. At a time of switching of the switch (S1/S2) in order to release interconnection with the grid (2) and to switch to an independent output, the power conversion apparatus (10) determines itself to be a master device when a level of the drive signal line (L2/L3) is inverted after switching of the switch and determines itself to be a slave device when the level is not inverted.