Patent · US Active

System for converting AC electrical power to DC electrical power and methods

US9614429B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Jiaqi Liang · Cary, US
Li Qi · Raleigh, US

Key dates

Filing date	Aug 18, 2015
Grant date	Apr 4, 2017
Priority date	—
Expiry date	Aug 18, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B70/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system includes a first DC rail and a second DC rail, and a rectifier coupled with the first and second DC rails. A multilevel converter is also coupled with the DC rails and operable to limit input current harmonics to the rectifier. Differences between voltage phase and current phase in AC electrical power supplied to the system are compensated via closed loop control of a voltage output of the multilevel converter.

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