Modularized structure for three-electric level current transformer

• Main Authors: WU JINGZHI, DONG ZUYI, XUE ZHAOQIANG, YIN ZHENGBING, CHEN GUODONG, SONG XIAOLIANG, ZHANG LUHUA
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2013
• 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; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The utility model discloses a modularized structure for a three-electric level current transformer. The three-electric level current transformer comprises three signal phase three-electric level circuits which are connected in parallel, wherein each signal phase three-electric level circuit comprises a first IGBT, a second IGBT a third IGBT, a forth IGBT, a first clamping diode and a second clamping diode which are all fixed on a surface of a water channel-containing water cooling base plate. Through reasonable and symmetric layout, electric level circuit line connection is simple and succinct, an electric current return loop can be decreased to the largest extent, and therefore stray inductance of a high frequency return loop can be small in current conversion processes, and voltage surges can be lowered when IGBTs are turned off. The modularized structure for a three-electric level current transformer is characterized in that generated heat quantity difference of the IGBTs and convenience of water channel d