Clamp double submodule energy acquiring power supply device and energy acquiring control method

• Main Authors: FAN CAIYUN, YAO ZHAO, WANG YUDING, QI YUANRUI, XIA KEPENG, HAN KUN
• Format: Patent
• Language: English
• Published: 13.01.2016
• 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 invention relates to a clamp double submodule energy acquiring power supply device and energy acquiring control method. The clamp double submodule energy acquiring power supply device comprises a first energy acquiring unit and a second energy acquiring unit. The first energy acquiring unit acquires power from the two ends of the first capacitor of a clamp double submodule. The second energy acquiring unit acquires power from the two ends of the second capacitor of the clamp double submodule. A control module controls the two energy acquiring units to be identical in output voltage and output current so that constant power output of the two energy acquiring units can be realized, equaling voltage between the two capacitors can be guaranteed, and the result that the clamp double submodule cannot normally operate due to unequaling voltage of the two capacitors can be avoided.