Power unit of cascaded high-voltage variable-frequency speed regulator

• Main Authors: LIANG XIN, DONG YIHENG, LUO ZIYONG, LONG AIJUN, LI RUICHANG
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• 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

The utility model discloses a power unit of a cascaded high-voltage variable-frequency governor. The system comprises two unit circuits, each unit circuit comprises a three-phase full-bridge rectifiercircuit, a direct-current bus, a full-bridge inverter circuit and a control panel, the output end of each three-phase full-bridge rectifier circuit is connected with the input end of the corresponding full-bridge inverter circuit through the corresponding direct-current bus, and the output end of each full-bridge inverter circuit is the alternating-current output end of the corresponding unit circuit; four driving signal input ends of the full-bridge inverter circuit are respectively connected with a driving signal output end of the control panel; the alternating current output ends of the two unit circuits are connected in series and then serve as the alternating current output end of the power unit; the alternating-current input end of the first unit circuit three-phase full-bridge rectifying circuit is connect