Patents Assigned to STATE GRID LIAONING ELECTRIC POWER COMPANY LIMITED ECONOMIC RESEARCH INSTITUTE
  • 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