INVERTER DEVICE FOR INTERCONNECTED SYSTEM

PROBLEM TO BE SOLVED: To provide an inverter device for an interconnected system that can control a system voltage accurately. SOLUTION: A switching control device reduces an output voltage (Steps 100 to 108) by reducing a target value ISof an output current, if a system voltage rise is detected. Un...

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Bibliographische Detailangaben
Hauptverfasser:	ONIZUKA KEIGO, MAKINO YASUHIRO
Format:	Patent
Sprache:	eng
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 CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PHYSICS REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an inverter device for an interconnected system that can control a system voltage accurately. SOLUTION: A switching control device reduces an output voltage (Steps 100 to 108) by reducing a target value ISof an output current, if a system voltage rise is detected. Unless the system voltage rise is controlled even if the output voltage is reduced, and if the reduced target value ISDreaches a target value (a prescribed value TT) that is set as the lower limit value of the output current, the drive of a switching element is stopped (Step 118). The drive of the switching element is resumed after the lapse of a prescribed period of time in such a way that the output power increases gradually in a state that the system voltage rise does not occur (Steps 120 to 124). Thus, the system voltage rise is controlled by reducing the output power securely. COPYRIGHT: (C)2005,JPO&NCIPI