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:
Mar. 25, 2025
Filed:
Jun. 06, 2023
Teco Electric & Machinery Co., Ltd., Taipei, TW;
Chih-Hung Hsiao, Taipei, TW;
Hsien-Lai Yu, Taipei, TW;
TECO ELECTRIC & MACHINERY CO., LTD., Taipei, TW;
Abstract
In a motor current optimization control method and system, while the motor runs steadily at a set speed, one d-axis current command value of the input current is set to 0. Then, the d-axis current command value is step-wisely increased by an increment at least twice. At least three real-time feedback current values can be collected from detecting a feedback current of an AC power. When an instant detected is smaller than the previous detected, the d-axis current command value is increased. When the instant detected is greater than the previous detected, the d-axis current command value corresponding to the previous detected is a minimum feedback current value and is defined as the optimized d-axis current command value. The optimized d-axis current command value is set as the d-axis current command value of the input current to control the motor to keep running steadily at the set speed.