Patents by Inventor XIAO QIANG WU

XIAO QIANG WU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for operating parallel auxiliary converters in a rail vehicle
    Patent number: 10000122
    Abstract: In a method for supplying an electrical load of a vehicle with electrical energy by auxiliary converters connected in parallel on the alternating-voltage side, a current flow between the auxiliary converters and a grounded N conductor of an energy supply network is interrupted in the presence a ground fault. The auxiliary converters connected in parallel on the alternating-voltage side are operated with fundamental-wave and pulse synchronicity. An energy supply system of a vehicle, in particular of a rail vehicle, performs this method, with the energy supply system including at least two auxiliary converters arranged in parallel, an energy supply network for supplying electrical loads, at least one switch for interrupting a current flow between the auxiliary converters and the energy supply network.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 19, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Xiao Qiang Wu, Nikolaj Echkilev, Andreas Wellner
  • METHOD FOR OPERATING PARALLEL AUXILIARY CONVERTERS IN A RAIL VEHICLE
    Publication number: 20170207717
    Abstract: In a method for supplying an electrical load of a vehicle with electrical energy by auxiliary converters connected in parallel on the alternating-voltage side, a current flow between the auxiliary converters and a grounded N conductor of an energy supply network is interrupted in the presence a ground fault. The auxiliary converters connected in parallel on the alternating-voltage side are operated with fundamental-wave and pulse synchronicity. An energy supply system of a vehicle, in particular of a rail vehicle, performs this method, with the energy supply system including at least two auxiliary converters arranged in parallel, an energy supply network for supplying electrical loads, at least one switch for interrupting a current flow between the auxiliary converters and the energy supply network.
    Type: Application
    Filed: March 23, 2015
    Publication date: July 20, 2017
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: XIAO QIANG WU, Nikolaj Echkilev, Andreas Wellner