公开(公告)号：US09525348B1

公开(公告)日：2016-12-20

申请号：US14814914

申请日：2015-07-31

Applicant: ABB Technology AG

Inventor： Eddy Aeloiza ,  Francisco Canales ,  Rolando Burgos

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M2007/4835

Abstract: A converter for connecting a voltage source to a load includes a plurality of ICBT (integrated capacitor blocked transistor) cells configured as switches and connected in series to form a series connection path, a main capacitor connected across the series connection path, and a controller. Each ICBT cell includes a main transistor disposed in the series connection path and a series connected auxiliary transistor and auxiliary capacitor coupled in parallel with the main transistor. The controller is operable to develop a voltage across the main capacitor which exceeds a voltage rating of the ICBT cells, by switching the ICBT cells so as to commutate current within the individual ICBT cells without the ICBT cells providing active power to the load so that power flow is from the voltage source, to the main capacitor, to the load and not through the auxiliary transistors and the auxiliary capacitors.

Abstract translation: 用于将电压源连接到负载的转换器包括被配置为开关并串联连接的多个ICBT（集成电容器阻塞晶体管）单元，以形成串联连接路径，跨串联连接路径连接的主电容器和控制器。 每个ICBT单元包括设置在串联连接路径中的主晶体管和与主晶体管并联耦合的串联辅助晶体管和辅助电容器。 控制器可操作以通过切换ICBT单元来开发超过ICBT单元的额定电压的主电容器两端的电压，以便在单独ICBT单元内换向电流，而ICBT单元不向负载提供有功功率 流量从电压源到主电容器到负载而不是通过辅助晶体管和辅助电容器。