Parallel connection type electric power transformer with energy feedback function

• Main Authors: QIU JUN, LU JIMING, LV BO, CUI JIAN, LIU RONG, MAO CHENGXIONG, DUAN YUPING, HUANG HANQI, ZHANG FENG, WANG DAN, YANG BAOKUN
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2012
• 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

The utility model discloses a parallel connection type electric power transformer with an energy feedback function. The input terminal of an alternating current power supply is simultaneously connected with input terminals of two groups of alternating current chopper circuits; the two groups of the alternating current chopper circuits comprise a first alternating current chopper circuit and a second alternating current chopper circuit which are formed by electronic power switches in series-opposing connection; output terminals of the first alternating current chopper circuit and the second alternating current chopper circuit are respectively connected with low-voltage sides of a first medium and high frequency transformer T1 and a second medium and high frequency transformer T2; high-voltage sides of the first medium and high frequency transformer T1 and the second medium and high frequency transformer T2 are connected in parallel to serve as an output terminal; control parts of the alternating current choppe