Patents by Inventor Ningran SONG

Ningran SONG 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).

  • Hierarchical voltage control system of multi-energy complementary hybrid energy storage system and energy management method
    Patent number: 11791107
    Abstract: A hierarchical voltage control system is provided. A supercapacitor unit and a lithium battery unit are both connected to a DC bus to form a parallel-structure-type hybrid energy storage system, and are each configured with a power device and a switch to control a connection relationship between the corresponding unit and the DC bus. A detection circuit detects current and voltage values of the supercapacitor unit, the lithium battery unit, and the DC bus, detects an operating parameter of a power conversion system, and transmits the operating parameter to a processor, the power conversion system being connected in parallel to the DC bus for bidirectional power conversion of AC and DC energy sources. A microprocessor determines a system operating condition and uses a hierarchical voltage control strategy to control charging and discharging states of the supercapacitor unit and the lithium battery unit.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 17, 2023
    Assignee: INSTITUTE OF AUTOMATION, SHANDONG ACADEMY OF SCIENCES
    Inventors: Guangxu Zhou, Dongdong Hou, Mengmei Zhu, Ningran Song, Yuan Liu, Jia Gao, Yongyun Mu, Kun Guo
  • HIERARCHICAL VOLTAGE CONTROL SYSTEM OF MULTI-ENERGY COMPLEMENTARY HYBRID ENERGY STORAGE SYSTEM AND ENERGY MANAGEMENT METHOD
    Publication number: 20210175025
    Abstract: A hierarchical voltage control system is provided. A supercapacitor unit and a lithium battery unit are both connected to a DC bus to form a parallel-structure-type hybrid energy storage system, and are each configured with a power device and a switch to control a connection relationship between the corresponding unit and the DC bus. A detection circuit detects current and voltage values of the supercapacitor unit, the lithium battery unit, and the DC bus, detects an operating parameter of a power conversion system, and transmits the operating parameter to a processor, the power conversion system being connected in parallel to the DC bus for bidirectional power conversion of AC and DC energy sources. A microprocessor determines a system operating condition and uses a hierarchical voltage control strategy to control charging and discharging states of the supercapacitor unit and the lithium battery unit.
    Type: Application
    Filed: April 29, 2020
    Publication date: June 10, 2021
    Applicant: INSTITUTE OF AUTOMATION, SHANDONG ACADEMY OF SCIENCES
    Inventors: Guangxu ZHOU, Dongdong HOU, Mengmei ZHU, Ningran SONG, Yuan LIU, Jia GAO, Yongyun MU, Kun GUO