Power conversion method and system

• Main Authors: DAVIES ALEXANDER PHILIP, DAVIES KEVIN STEPHEN
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2017
• 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 VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

A system for converting power comprising a plurality of modules comprising a storage device, connected in series and having each at least one DC power source. A voltage control circuitry in each module connects the storage device between a maximum and minimum module voltage to create a stepwise approximation of a mains signal. A compensator unit is provided in series with the modules including a storage device charged by the power sources. A control unit is used to ramp up or down the voltage between the input and output of the compensator unit to follow the desired AC signal. When the control unit operates a module to vary the supplied voltage from either zero to the maximum or minimum values, or vice versa, the control unit applies via compensator voltage control circuitry a corresponding but opposed change in the voltage supplied by the compensator unit. 种用于转换功率的系统，包括具有存储装置的多个模块，所述模块串联连接并且每个模块均具有至少个直流电源。在每个模块中的电压控制电路与个在最大和最小模块电压之间的存储装置相连接，以逐步逼近主电源信号。补偿器单元与所述模块串联，该模块包括由电源充电的存储装置。控制单元用于按照所需的交流信号加强或减弱补偿器单元的输入