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:
Jan. 14, 2025
Filed:
May. 19, 2021
Shenyang University of Technology, Liaoning, CN;
Feng Sun, Liaoning, CN;
Fangchao Xu, Liaoning, CN;
Junjie Jin, Liaoning, CN;
Gaojie Song, Liaoning, CN;
Li Chen, Liaoning, CN;
Ming Zhang, Liaoning, CN;
Ling Tong, Liaoning, CN;
Qiang Li, Liaoning, CN;
Xiaoyou Zhang, Liaoning, CN;
SHENYANG UNIVERSITY OF TECHNOLOGY, Liaoning, CN;
Abstract
The present application relates to a bidirectional digital switching power amplifier based on a magnetic suspension drive platform and its multi-step current predictive control method. The control method includes the following steps: establishing a prediction model of a bidirectional digital switching power amplifier; introducing a feedback correction term for a closed loop prediction; calculating an optimal modulation duty cycle through a value function; generating, according to the obtained modulation duty cycle, four PWM drive signals by a pulse width modulation module to control four switch tubes respectively to achieve current prediction control. The present application effectively improves the system control accuracy with small steady-state error, small on-line computation amount, simple algorithm, easy digital realization, and good practical value and application prospect.