System and method for protecting a power converter during an adverse voltage event
US9667057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jul 17, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E70/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure is directed to a system and method for protecting a power converter of a renewable energy power system and/or a stand-alone energy storage system connected to a power grid during an adverse voltage event, such as a high voltage ride through (HVRT) event. In one embodiment, the method includes monitoring, via a control system, a current-voltage parameter of the power converter, wherein the current-voltage parameter is indicative of an adverse voltage event occurring at the power grid. Another step includes transferring, via a switching power supply, energy from a DC link of the power converter to one or more energy storage devices of an energy storage system coupled to the power converter when the current-voltage parameter indicates that an adverse voltage event is occurring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.