Patents by Inventor Wuhua Hu

Wuhua Hu 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).

  • Offline uninterruptible power source and control method therefor
    Patent number: 11949282
    Abstract: Disclosed are an offline uninterruptible power source and a control method therefor.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 2, 2024
    Assignee: Lian Zheng Electronics (Shenzhen) Co., Ltd.
    Inventors: Wuhua Hu, Liang Deng
  • Cooling plant system and method of operating said system
    Patent number: 11898803
    Abstract: The present disclosure may provide a cooling plant system, a method of operating a cooling plant system and an energy storage and scheduling control system, the cooling plant system comprising one or more cooling towers; one or more thermal energy storage systems coupled to the one or more cooling towers; one or more electrical energy storage systems, the one or more electrical energy storage systems being coupled to the one or more thermal energy storage systems for selectively providing electrical energy to the one or more thermal energy storage systems; and an energy storage and scheduling control system coupled to the one or more thermal energy storage systems and the one or more electrical energy storage systems.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: February 13, 2024
    Assignee: Agency for Science, Technology and Research Singapore District Cooling Pte Ltd
    Inventors: Wuhua Hu, Chin Choy Chai, Wenxian Yang, Rongshan Yu
  • OFFLINE UNINTERRUPTIBLE POWER SOURCE AND CONTROL METHOD THEREFOR
    Publication number: 20220231535
    Abstract: Disclosed are an offline uninterruptible power source and a control method therefor.
    Type: Application
    Filed: May 21, 2020
    Publication date: July 21, 2022
    Inventors: WUHUA HU, LIANG DENG
  • COOLING PLANT SYSTEM AND METHOD OF OPERATING SAID SYSTEM
    Publication number: 20210396478
    Abstract: The present disclosure may provide a cooling plant system, a method of operating a cooling plant system and an energy storage and scheduling control system, the cooling plant system comprising one or more cooling towers; one or more thermal energy storage systems coupled to the one or more cooling towers; one or more electrical energy storage systems, the one or more electrical energy storage systems being coupled to the one or more thermal energy storage systems for selectively providing electrical energy to the one or more thermal energy storage systems; and an energy storage and scheduling control system coupled to the one or more thermal energy storage systems and the one or more electrical energy storage systems, the energy storage and scheduling control system being configured to control operations of the one or more thermal energy storage systems and the one or more electrical energy storage systems via a scheduling of the operations per time slot, the operations including the selective provision of el
    Type: Application
    Filed: October 17, 2018
    Publication date: December 23, 2021
    Inventors: Wuhua HU, Chin Choy CHAI, Wenxian YANG, Rongshan YU
  • Controlling method and system for supporting active power factor correction loads
    Patent number: 9525335
    Abstract: The present invention relates to a control method for supporting active power factor correction (APFC) loads, comprising: providing square wave width of an output voltage waveform to be a comparatively large value to improve effective value of the output voltage, in order to meet the requirements for active power factor correction (APFC) loads; and gradually decreasing square wave width of the output voltage waveform from the comparatively large value to a comparatively small value to gradually decrease effective value of the output voltage to a desirable stable voltage effective value.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: December 20, 2016
    Assignee: LIAN ZHENG ELECTRONIC (SHENZHEN) CO., LTD.
    Inventors: Kaijun Xie, Wuhua Hu
  • CONTROLLING METHOD AND SYSTEM FOR SUPPORTING ACTIVE POWER FACTOR CORRECTION LOADS
    Publication number: 20140375283
    Abstract: The present invention relates to a control method for supporting active power factor correction (APFC) loads, comprising: providing square wave width of an output voltage waveform to be a comparatively large value to improve effective value of the output voltage, in order to meet the requirements for active power factor correction (APFC) loads; and gradually decreasing square wave width of the output voltage waveform from the comparatively large value to a comparatively small value to gradually decrease effective value of the output voltage to a desirable stable voltage effective value.
    Type: Application
    Filed: September 17, 2012
    Publication date: December 25, 2014
    Applicant: LIAN ZHENG ELECTRONIC (SHENZHEN) CO., LTD.
    Inventors: Kaijun Xie, Wuhua Hu