Method for synchronously switching trigger timing of semiconductor valves

• Main Authors: WANG RENQIU, JIANG XIRUI, YANG WEIGANG, ZHANG XINGANG, ZHA KUNPENG, LU ZHENG
• Format: Patent
• Language: Chinese; English
• Published: 29.02.2012
• 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 provides a system and a method for synchronously switching trigger timing of semiconductor valves, belonging to the field of power electronic automation. The method is realized through a set of valve control system. The valve control system comprises a master control unit, a return inspection unit and valve base electronic (VBE) units of valves. The master control unit is used to receive trigger timing switching order given by the outside and to adjust the entire timing switching process. Each VBE unit is used to verify the trigger timing selected by the master control unit and to feed back return information to the return inspection unit after check and to trigger or cut off the corresponding valve according to the selected trigger timing. The return inspection unit is usedto receive the return information reported by each VBE unit and to feed back the information to the master control unit after the information is summarized. The method can satisfy the requirements ofconverter valve operation