THREE-PHASE ALTERNATING CONVERTER FOR TRI-STATE SWITCH UNIT

• Main Authors: WEN, ZHIKAI, WANG, SHAOHUA
• Format: Patent
• Language: English; French; German
• Published: 25.06.2014
• 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; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

A three-phase interleave converter with a three switching state cell includes: a filter circuit, a power factor correction circuit, a star connection between the filter circuit and the power factor correction circuit, and a second capacitor 7; where an output end of the filter circuit is connected to an input end of the power factor correction circuit by using a conducting wire; the star connection is set on the conducting wire connecting the filter circuit and the power factor correction circuit; one end of the star connection is connected to the conducting wire and the other end of the star connection is connected to one end of the second capacitor 7; and the other end of the second capacitor 7 is connected to an input wire. By using the foregoing solution, the number of capacitors is reduced from the original three to one. In this way, fewer capacitors are used, and the volume is further reduced, thereby increasing the power density.