Invention Application
US20170054358A1 SYSTEM FOR CONVERTING AC ELECTRICAL POWER TO DC ELECTRICAL POWER AND METHODS 有权
将交流电转换为直流电力系统和方法

  • Patent Title: SYSTEM FOR CONVERTING AC ELECTRICAL POWER TO DC ELECTRICAL POWER AND METHODS
  • Patent Title (中): 将交流电转换为直流电力系统和方法
  • Application No.: US14828882
    Application Date: 2015-08-18
  • Publication No.: US20170054358A1
    Publication Date: 2017-02-23
  • Inventor: Jiaqi LiangLi Qi
  • Applicant: ABB Technology Ltd.
  • Main IPC: H02M1/12
  • IPC: H02M1/12 H02M7/06
SYSTEM FOR CONVERTING AC ELECTRICAL POWER TO DC ELECTRICAL POWER AND METHODS
Abstract:
A system includes a first DC rail and a second DC rail, and a rectifier coupled with the first and second DC rails. A multilevel converter is also coupled with the DC rails and operable to limit input current harmonics to the rectifier. Differences between voltage phase and current phase in AC electrical power supplied to the system are compensated via closed loop control of a voltage output of the multilevel converter.
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