US Patent Issued to Queen's University at Kingston on Dec. 16 for "Modulation methods and controllers for neutral point clamped converter" (Canadian, Iranian Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,500,529, issued on Dec. 16, was assigned to Queen's University at Kingston (Kingston, Canada).

"Modulation methods and controllers for neutral point clamped converter" was invented by Javad Ebrahimi Jouzdani (Kingston, Canada), Alireza Bakhshai (Kingston, Canada) and Hamidreza Karshenas (Isfahan, Iran).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for controlling a three phase neutral point clamped (NPC) converter independently controls switching devices of each phase to produce a reconstructed output voltage level of each phase based on a linear combination of three voltage levels of that phase. The method includes setting duty ratios of the s...