The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 30, 2026
Filed:
Jul. 18, 2024
Northwestern Polytechnical University, Xi'an city, CN;
Ke Shen, Xi'an city, CN;
Min Zhang, Xi'an city, CN;
Kaixuan Gao, Xi'an city, CN;
Yujia Cao, Xi'an city, CN;
Peixin Liang, Xi'an city, CN;
Abstract
The invention relates to a high-performance control method for carrier-based modulation T-type three-level converters. The method includes: Srepresenting the mathematical model of the converter using the switching function; Srepresenting the three-phase modulation signal using the sine function, and representing upper and lower carrier signals using the piecewise function; Sdetermining the time distribution of the converter switching state and obtaining the critical phase shift angle of the lower carrier under the switching state without maximum common-mode voltage; Ssampling voltage values of two DC-side capacitors and using the voltage difference as the basis for left or right shifts of the lower carrier; Scomparing the three-phase modulation wave with the upper and lower carriers to output the switching pulse signal. This method addresses neutral-point potential balance, common-mode voltage suppression, and reduces digital processor resource usage during PWM modulation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile