AC POWER SUPPLY SYSTEM

PROBLEM TO BE SOLVED: To prevent a load from being overheated, damaged or broken by limiting the output voltage of an inverter so as not to exceed the maximum allowing voltage of the load. SOLUTION: An AC power supply system includes a DC power supply E, an inverter circuit 3 for converting a DC pow...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHIOKA NOBUKI, FUKUNAGA SHIGENOBU
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 CONTROL OR REGULATION THEREOF CONTROLLING CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION PHYSICS REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION REGULATING SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent a load from being overheated, damaged or broken by limiting the output voltage of an inverter so as not to exceed the maximum allowing voltage of the load. SOLUTION: An AC power supply system includes a DC power supply E, an inverter circuit 3 for converting a DC power into three-phase AC, the load 4 connected to the output side of the inverter circuit 3, an inverter control circuit 5 for detecting the voltage, current of the DC power supply E to control an output point so as to retrieve the maximum output of the DC power supply E to the inverter circuit 3, an output voltage limiting circuit 6 for detecting the output voltage of the inverter circuit 3 to set the maximum allowing value of the output voltage of the inverter circuit 3 and to compare the output voltage with the maximum allowing value to output the result. The inverter control circuit 5 controls the inverter circuit 3 so as not to exceed the maximum allowing value at the output voltage of the inverter circuit 3 based on the output of the output voltage limiting circuit 6. COPYRIGHT: (C)2004,JPO&NCIPI