INSTANTANEOUS VOLTAGE DROP COMPENSATOR

PROBLEM TO BE SOLVED: To provide an instantaneous voltage drop compensator which can compensate voltage drop on an AC side at the instantaneous voltage drop of an AC power source to maintain the supply voltage to a load at a prescribed value. SOLUTION: In the instantaneous voltage drop compensator,...

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Bibliographische Detailangaben
1. Verfasser:	UTSUNOMIYA KOJI
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 instantaneous voltage drop compensator which can compensate voltage drop on an AC side at the instantaneous voltage drop of an AC power source to maintain the supply voltage to a load at a prescribed value. SOLUTION: In the instantaneous voltage drop compensator, an inductance L1 is connected in series between the AC power source 12 and the load 13, and an AC chopper circuit 14 is connected in parallel with the inductance L1. Then, the control circuit 15 starts the chopper circuit 14 when the AC power source 12 exhibits instantaneous voltage drop, and boosts and controls the chopper circuit 14 so that the supply voltage to the load 13 becomes a prescribed value. Thereby, the voltage drop caused by the instantaneous voltage drop of the AC power source voltage can be compensated on the AC side. COPYRIGHT: (C)2007,JPO&INPIT