Patent · US Active

System and method for high efficiency power quality correction

US10027120B1 · kind B1 · utility

3Cited by

3References

18Claims

0Family size

Assignee

Edge Electrons Limited · CN

Inventors

Jian Carlo Decena Zapata · Malvar, PH
Efren II Santos Cruzat · Makati, PH
Neal George Stewart · Kowloon, CN
Gordon Currie · Quezon, PH
Wing Ling Cheng · Lingjiao, CN

Key dates

Filing date	Dec 4, 2017
Grant date	Jul 17, 2018
Priority date	—
Expiry date	Dec 4, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E40/40
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high-efficiency system for conducting power factor (PF) and harmonics correction in an electrical network, comprising a controller; a digital PFC capacitor array comprising two or more passive PFC capacitors, providing fine steps increments in the PF correction; and linear PFC capacitor arrays, providing coarse steps increments in the PF correction. The PF correction in coarse steps increments and fine steps increments allow a total or near total PF correction without overcompensation. Optionally, the system further comprises a lower power active power filter (APF) configured to only target and eliminate or minimize harmonics in the electrical network.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.