Patents by Inventor Shenjian ZOU

Shenjian ZOU 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).

  • Control of active neutral-point clamped three-level converter
    Patent number: 11316443
    Abstract: The present disclosure relates to an active neutral-point clamped (ANPC) three-level converter, and a method and controller for controlling thereof. The ANPC three-level converter includes at least one bridge leg, and a controller. Each of the at least one bridge leg includes multiple input terminals, an output terminal, and multiple switches connected between the multiple input terminals and the output terminal. The multiple input terminals include a first input terminal, a second input terminal, and a third input terminal. The multiple switches include a first external switch, a first internal switch, a first clamp switch, a second external switch, a second internal switch, and a second clamp switch. The method for controlling the NPC three-level converter includes a method for controlling the ANPC three-level converter to stop operating, and a method for controlling the ANPC three-level converter to start to operate.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: April 26, 2022
    Assignee: Shenzhen Kstar Science and Technology Co., Ltd.
    Inventors: Chengrui Du, Chaoqun Liu, Shenjian Zou, Zhiqiang Zhang, Baisheng Chen
  • CONTROL OF ACTIVE NEUTRAL-POINT CLAMPED THREE-LEVEL CONVERTER
    Publication number: 20210367530
    Abstract: The present disclosure relates to an active neutral-point clamped (ANPC) three-level converter, and a method and controller for controlling thereof. The ANPC three-level converter includes at least one bridge leg, and a controller. Each of the at least one bridge leg includes multiple input terminals, an output terminal, and multiple switches connected between the multiple input terminals and the output terminal. The multiple input terminals include a first input terminal, a second input terminal, and a third input terminal. The multiple switches include a first external switch, a first internal switch, a first clamp switch, a second external switch, a second internal switch, and a second clamp switch. The method for controlling the NPC three-level converter includes a method for controlling the ANPC three-level converter to stop operating, and a method for controlling the ANPC three-level converter to start to operate.
    Type: Application
    Filed: October 19, 2020
    Publication date: November 25, 2021
    Inventors: Chengrui DU, Chaoqun LIU, Shenjian ZOU, Zhiqiang ZHANG, Baisheng CHEN