Patents by Inventor Lianzhi Wang

Lianzhi Wang 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).

  • Transformer control device and method based on three-dimensional zone diagram policy
    Patent number: 8981592
    Abstract: Disclosed is a transformer control device and method based on a three-dimensional zone diagram policy. The method includes: setting transformers, including a transformer A and a transformer B; collecting three-phase voltage data and three-phase current data in a power system; rectifying the collected three-phase voltage data and the three-phase current data; transferring the data to the latches in a time-transfer method; transferring the data to an A/D converter of a processor to convert analog signals to digital signals; constructing a three-dimensional zone diagram in the processor; determining transformer operating conditions according to positions of points formed by voltage, reactive power factor and substation load; and adjusting the transformers.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 17, 2015
    Assignees: Northeastern University
    Inventors: Huaguang Zhang, Qiuye Sun, Jun Yang, Bin Jiang, Lianzhi Wang, Dazhong Ma, Zhenwei Liu, Fei Teng, Zhiqiang He, Xintong Li
  • TRANSFORMER CONTROL DEVICE AND METHOD BASED ON THREE-DIMENSIONAL ZONE DIAGRAM POLICY
    Publication number: 20130076130
    Abstract: Disclosed is a transformer control device and method based on a three-dimensional zone diagram policy. The method includes: setting transformers, including a transformer A and a transformer B; collecting three-phase voltage data and three-phase current data in a power system; rectifying the collected three-phase voltage data and the three-phase current data; transferring the data to the latches in a time-transfer method; transferring the data to an A/D converter of a processor to convert analog signals to digital signals; constructing a three-dimensional zone diagram in the processor; determining transformer operating conditions according to positions of points formed by voltage, reactive power factor and substation load; and adjusting the transformers.
    Type: Application
    Filed: March 7, 2012
    Publication date: March 28, 2013
    Inventors: Huaguang ZHANG, Qiuye Sun, Jun Yang, Bin Jiang, Lianzhi Wang, Dazhong Ma, Zhenwei Liu, Fei Teng, Zhiqiang He, Xintong Li