Impact compensation circuit for transformer sudden short-circuit test

• Main Authors: LIN JIANQIN, SHENG KUANG, LI ZHI, LAO ZENGJIANG, YANG HANPENG, YU SHAOFENG, ZHENG ZHIYAO, WU GANG, GAO YIBO
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2020
• 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; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention discloses an impact compensation circuit for a transformer sudden short-circuit test, and aims to provide a device for supporting the influence of a high-power, composite and wide-frequency-band high-capacity transformer on an accessed power distribution network in an anti-short-circuit test. The system comprises a 50Hz and 380V power frequency alternating current power supply, a power frequency alternating current-direct current-alternating current rectification inverter circuit and a high frequency alternating current-direct current-alternating current rectification inverter circuit which have the same topology, a high frequency transformer and a power frequency transformer, wherein two ends of the 50Hz and 380V power frequency alternating current power supply are respectively connected to the input end of the power frequency alternating current-direct current-alternating current rectification inverter circuit and the input end of the high frequency alternating current-direct current-alternati