Patents by Inventor Xingmei ZHANG

Xingmei ZHANG 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).

  • APPARATUS AND SYSTEM FOR NON-CONTACT CURRENT AND VOLTAGE COMPOSITE MEASUREMENT
    Publication number: 20250093390
    Abstract: An apparatus for non-contact current and voltage composite measurement includes: a current signal detection device, a voltage signal detection device, a zero-crossing detection circuit, and a control unit. The current signal detection device generates a current-induced electromotive force based on current flowing on the transmission line to be measured when there is current-voltage passing through the transmission line to be measured; the voltage signal detection device generates a voltage-induced electromotive force based on voltage flowing on the transmission line to be measured when there is current-voltage passing through the transmission line to be measured. The zero-crossing detection circuit performs zero-crossing detection on the current-induced electromotive force and the voltage-induced electromotive force to determine the phase difference between them.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 20, 2025
    Inventors: Xiangyu TAN, Yong LU, Wenyun LI, Yi MA, Lijun TANG, Wenbin ZHANG, Xiaowei XU, Fangrong ZHOU, Xingmei ZHOU
  • Combined heating power and cooling apparatus with energy storage type adapted to an active distribution network and its method
    Patent number: 10480867
    Abstract: The Application relates to a combined heating power and cooling apparatus with energy storage for an active distribution network and its operating method. The apparatus is comprised of a generation apparatus, a generator, a waste heat recovering and absorbing heat pump, a high temperature flue gas-water heat exchanger, a medium temperature flue gas-water heat exchanger, a low temperature flue gas-water heat exchanger, an energy storing electric heat pump, a high temperature energy storing canister, a low temperature energy storing canister, a cooling tower, a number of circulating water pumps and a number of valves.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 19, 2019
    Assignee: TSINGHUA UNIVERSITY
    Inventors: Xiling Zhao, Lin Fu, Shigang Zhang, Xingmei Zhang
  • COMBINED HEATING POWER AND COOLING APPARATUS WITH ENERGY STORAGE TYPE ADAPTED TO AN ACTIVE DISTRIBUTION NETWORK AND ITS METHOD
    Publication number: 20170131037
    Abstract: The application relates to an combined heating power and cooling apparatus with energy storage for an active distribution network and its operating method. The apparatus is comprised of a generation apparatus, a generator, a waste heat recovering and absorbing heat pump, a high temperature flue gas-water heat exchanger, a medium temperature flue gas-water heat exchanger, a low temperature flue gas-water heat exchanger, a energy storing electric heat pump, a high temperature energy storing canister, a low temperature energy storing canister, a cooling tower a number of circulating water pumps and a number of valves.
    Type: Application
    Filed: December 10, 2015
    Publication date: May 11, 2017
    Inventors: Xiling ZHAO, Lin FU, Shigang ZHANG, Xingmei ZHANG