Patents by Inventor MOAZZAM NAZIR

MOAZZAM NAZIR 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).

  • DC compensation for power transformer through neutral DC injection
    Patent number: 11374503
    Abstract: A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: June 28, 2022
    Assignees: Savannah River Nuclear Solutions, LLC, Clemson University
    Inventors: Klaehn W. Burkes, Vincent J. Ceyssens, Johan H. R. Enslin, Moazzam Nazir
  • DC Compensation for Power Transformer Through Neutral DC Injection
    Publication number: 20210288593
    Abstract: A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.
    Type: Application
    Filed: March 9, 2021
    Publication date: September 16, 2021
    Inventors: KLAEHN W. BURKES, VINCENT J. CEYSSENS, JOHAN H.R. ENSLIN, MOAZZAM NAZIR