Patents by Inventor Liaoyi NING

Liaoyi NING 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).

  • Renewable energy-based hybrid bi-directionally interactive DC traction power supply system
    Patent number: 10308140
    Abstract: A renewable energy-based hybrid bi-directionally interactive DC traction power supply system includes two traction substations. Each substation includes transformers, rectifiers, bidirectional AC-DC converters, a DC bus, a catenary, a steel rail and a section post. A DC bus between two adjacent traction substations is provided with a DC renewable energy system constructed by an electric vehicle charging-discharging system, a distributed generation and more than one low voltage DC microgrid. The DC renewable energy system is connected to the DC bus between two adjacent traction substations through a high voltage DC bus, thus a DC circular microgrid being formed in a power supply section post. The electric vehicle charging-discharging system is formed by more than one bidirectional DC-DC charging-discharging equipments which are intended for in connection with the power batteries of the electric vehicle.
    Type: Grant
    Filed: July 26, 2014
    Date of Patent: June 4, 2019
    Assignees: State Grid Corporation of China, North China Electric Power University, State Grid Liaoning Electric Power Company Limited Economic Research Institute
    Inventors: Ming Meng, Jian Liu, Xiping Wang, Dalong Hu, Li Jiang, Yingwei Song, Yan Liu, Liaoyi Ning
  • A renewable energy-based hybrid bi-directionally interactive DC traction power supply system
    Publication number: 20160159250
    Abstract: A renewable energy-based hybrid bi-directionally interactive DC traction power supply system includes two traction substations. Each substation includes transformers, rectifiers, bidirectional AC-DC converters, a DC bus, a catenary, a steel rail and a section post. A DC bus between two adjacent traction substations is provided with a DC renewable energy system constructed by an electric vehicle charging-discharging system, a distributed generation and more than one low voltage DC microgrid. The DC renewable energy system is connected to the DC bus between two adjacent traction substations through a high voltage DC bus, thus a DC circular microgrid being formed in a power supply section post. The electric vehicle charging-discharging system is formed by more than one bidirectional DC-DC charging-discharging equipments which are intended for in connection with the power batteries of the electric vehicle.
    Type: Application
    Filed: July 26, 2014
    Publication date: June 9, 2016
    Applicants: STATE GRID CORPORATION OF CHINA, NORTH CHINA ELECTRIC POWER UNIVERSITY (BAODING), STATE GRID LIAONING ELECTRIC POWER COMPANY LIMITED ECONOMIC RESEARCH INSTITUTE
    Inventors: Ming MENG, Jian LIU, Xiping WANG, Dalong HU, Li JIANG, Yingwei SONG, Yan LIU, Liaoyi NING