Plug-and-play ripple pacifier for DC voltage links in power electronics systems and DC power grids
US10594207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2015 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Oct 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K7/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In many power electronics systems, there is an intermediate DC-link stage for facilitating the power processing of different sources to their loads. A device called a plug-and-play ripple pacifier (RP) directly plugged into the DC-link, and actively removes undesired DC-link ripple, thereby eliminating the reliance on electrolytes capacitors for stabilizing the system and remove ripple. Importantly, the use of this device is non-invasive to the operation of its host systems, and requires no modification of existing hardware. It is suitable for the protection of DC utilities/systems and can also be used as a direct replacement of ripple-canceling E-Caps in power converters device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.