Fault isolation and system restoration using power converter
US10411587B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M7/4835
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Unique systems, methods, techniques and apparatuses of a DC fault isolation system are disclosed. One exemplary embodiment is a power conversion system comprising a converter including a midpoint connection structured to receive AC power, a first converter arm, a second converter arm, and a control system. The control system is configured to operate the converter a fault condition mode in response to a DC fault condition, wherein the fault condition mode operates at least one full bridge cell of the second converter arm so as to interrupt current flowing between the midpoint connection and the second DC bus rail and operates the first converter arm so as to allow the AC power to flow between the midpoint connection and the first DC bus rail in response to detecting the DC fault condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.