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. 27, 2017
Filed:
Jul. 24, 2016
University of Macau, Macau, CN;
Man-Chung Wong, Macau, CN;
Chi-Seng Lam, Macau, CN;
Yan-Zheng Yang, Macau, CN;
Wai-Hei Choi, Macau, CN;
Ning-Yi Dai, Macau, CN;
Yajie Wu, Macau, CN;
Chi-Kong Wong, Macau, CN;
Sai-Weng Sin, Macau, CN;
U-Fat Chio, Macau, CN;
Seng-Pan U, Macau, CN;
Rui Paulo da Silva Martins, Macau, CN;
University of Macau, Macau, CN;
Abstract
A mixed signal controller for a power quality compensator includes an analog circuit, an analog-to-digital converter (ADC), and a digital circuit. The analog circuit amplifies an input signal from the power quality compensator by a gain factor and outputs an analog signal, which is converted to a digital signal by the ADC. The digital circuit receives the digital signal, calculates the reference compensating current of each phase and then generates a trigger signal via hysteresis PWM to the power quality compensator. The digital circuit includes an evaluation circuit that calculates a value of the system total harmonic distortion after the power quality compensator compensates power and adjusts the gain factor when the value of the system total harmonic distortion reaches a predetermined threshold.