SOLAR CELL POWER GENERATION SYSTEM

PROBLEM TO BE SOLVED: To enable a storage battery to be added to a circuit of a solar cell and a PCS connected together without requiring a modification to the PCS.SOLUTION: A storage battery 7 is connected via a storage battery DC/DC converter 6 between a solar cell 1 and a PCS 2 with an MPPT contr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	IMAKUBO TOMOSHI, HIRAO TOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SEMICONDUCTOR DEVICES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To enable a storage battery to be added to a circuit of a solar cell and a PCS connected together without requiring a modification to the PCS.SOLUTION: A storage battery 7 is connected via a storage battery DC/DC converter 6 between a solar cell 1 and a PCS 2 with an MPPT control function in a circuit in which the solar cell 1 is system-connected to an AC system 3 via the PCS 2. When there is an output of the solar cell 1, on the basis of a command 9 fed from a power control device 8, the storage battery DC/DC converter 6 converts a voltage Vdc of the output of the solar cell 1 to a voltage Vb of the storage battery 7 and charges the storage battery 7 with a resultant constant current Ib. The curve of a graph of a voltage-current characteristic of power input into the PCS 2 is just a constant current value change from the curve of a graph of a voltage-current characteristic of output power of the solar cell 1.