Patents by Inventor Xiaowen LAI

Xiaowen LAI 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).

  • ENERGY FLOW OPTIMIZATION IN MULTI-ENERGY SYSTEM BASED ON SPATIOTEMPORAL NETWORK FLOWS
    Publication number: 20230177235
    Abstract: A method for energy flow optimization in a multi-energy system based on spatiotemporal network flows is disclosed. The multi-energy system includes M energy storage devices, photovoltaic power generators and N micro gas turbines (MGTs). The method includes: obtaining an objective function of the network flows in the multi-energy system; determining constraints of the network flows, where the constraints include a power balance constraint, an energy storage period constraint, an energy storage capacity constraint, an energy storage charging and discharging constraint, a generator power constraint, and an energy storage charge quantity constraint; establishing a network flow model with the objective function and constraints; solving the network flow model with a shortest-path and max-flow algorithm, to obtain an optimal power flow (OPF) in the multi-energy system; operating the multi-energy system by adjusting parameters of the energy storage devices and the MGTs based on the OPF.
    Type: Application
    Filed: November 7, 2022
    Publication date: June 8, 2023
    Inventors: Jianxiao WANG, Haiwang ZHONG, Jie SONG, Chen YIN, Qing XIA, Yang WANG, Xiaowen LAI
  • Methods and systems for dispatching multi-region power system
    Patent number: 11645713
    Abstract: The disclosure provides a method and a system for dispatching a multi-region power system. The method includes: obtaining, by each regional system operator, basic operating parameters of the regional power system; establishing, by each regional system operator, a dispatching model of the regional power system based on the basic operating parameters; identifying, by each regional system operator, an aggregation model of the regional power system based on the dispatching model of the regional power system; reporting, by each regional system operator, the aggregation model to the cross-region system operator; establishing, by the cross-region system operator, a reduced dispatching model of the multi-region power system based on the aggregation model from each regional system operator; and solving, by the cross-region system operator, the reduced dispatching model to obtain a dispatching result of each regional power system.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: May 9, 2023
    Assignees: TSINGHUA UNIVERSITY, BEIJING TSINTERGY TECHNOLOGY CO., LTD.
    Inventors: Haiwang Zhong, Zhenfei Tan, Qing Xia, Chongqing Kang, Yang Wang, Xiaowen Lai
  • METHODS AND SYSTEMS FOR DISPATCHING MULTI-REGION POWER SYSTEM
    Publication number: 20210358034
    Abstract: The disclosure provides a method and a system for dispatching a multi-region power system. The method includes: obtaining, by each regional system operator, basic operating parameters of the regional power system; establishing, by each regional system operator, a dispatching model of the regional power system based on the basic operating parameters; identifying, by each regional system operator, an aggregation model of the regional power system based on the dispatching model of the regional power system; reporting, by each regional system operator, the aggregation model to the cross-region system operator; establishing, by the cross-region system operator, a reduced dispatching model of the multi-region power system based on the aggregation model from each regional system operator; and solving, by the cross-region system operator, the reduced dispatching model to obtain a dispatching result of each regional power system.
    Type: Application
    Filed: February 17, 2021
    Publication date: November 18, 2021
    Inventors: Haiwang ZHONG, Zhenfei TAN, Qing XIA, Chongqing KANG, Yang WANG, Xiaowen LAI
  • Dispatch method and device for power system
    Patent number: 11152786
    Abstract: A dispatch method and device for a power system are provided. The method includes: establishing an optimal power flow model, the optimal power flow model includes an objective function and constraints, the objective function is configured to indicate a minimum total cost of active power production and reactive power production of generators; solving the optimal power flow model to obtain dispatch parameters for the power system; and dispatching the power system based on the dispatch parameters.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 19, 2021
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Zhifang Yang, Haiwang Zhong, Qing Xia, Chunling Lu, Xiaowen Lai, Yang Wang
  • Method and apparatus for photovoltaic power forecast based on numerical weather prediction
    Patent number: 10910840
    Abstract: The present disclosure provides a method and an apparatus for photovoltaic power forecast based on numerical weather prediction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 2, 2021
    Assignees: TSINGHUA UNIVERSITY, BEIJING TSINTERGY TECHNOLOGY CO., LTD.
    Inventors: Haiwang Zhong, Jianxiao Wang, Yang Wang, Xiaowen Lai, Qing Xia, Chongqing Kang
  • DISPATCH METHOD AND DEVICE FOR POWER SYSTEM
    Publication number: 20200161863
    Abstract: A dispatch method and device for a power system are provided. The method includes: establishing an optimal power flow model, the optimal power flow model includes an objective function and constraints, the objective function is configured to indicate a minimum total cost of active power production and reactive power production of generators; solving the optimal power flow model to obtain dispatch parameters for the power system; and dispatching the power system based on the dispatch parameters.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventors: Zhifang YANG, Haiwang ZHONG, Qing XIA, Chunling LU, Xiaowen LAI, Yang WANG
  • METHOD AND APPARATUS FOR PHOTOVOLTAIC POWER FORECAST BASED ON NUMERICAL WEATHER PREDICTION
    Publication number: 20180375334
    Abstract: The present disclosure provides a method and an apparatus for photovoltaic power forecast based on numerical weather prediction.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 27, 2018
    Inventors: Haiwang ZHONG, Jianxiao WANG, Yang WANG, Xiaowen LAI, Qing XIA, Chongqing KANG