TRANSFORMER AND OPERATION THEREOF

• Main Authors: YAMATO IKUO, HIROSE SHUNICHI, SHIRAHAMA HIDEFUMI
• Format: Patent
• Language: English
• Published: 21.05.1999
• Edition: 6
• Subjects: 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To improve reliability and operation rate and also adjust phase by providing a function to stabilize a mechanical voltage regulating mechanism in the transformer and keep constant a voltage in the negative side even when a voltage value of AC system is varied. SOLUTION: A stabilized voltage regulation type transformer 3 is composed of coils 5, 6, 7 electro-maganetically coupled in series via an iron core 4, a capacitor 8 connected in series with the coil 5, an AC voltage detector 14 and a power supply 9. The power supply 9 obtains phase information of a voltage Vs of the AC power supply system 1 from the AC voltage detector 14 and also obtains a control voltage V3 from the coil 7 to control a voltage Vc across terminals of capacitor 8 and the voltage V1 across terminals of coil 5 is adjusted so that the voltage V2 across the terminals of coil 6 becomes equal to the value requested by the AC load system 2. Thereby, the voltage regulating mechanism is stabilized to improve reliability and operation rate and also voltage amplitude and phase of the AC load system can be adjusted.