Switching device for a DC voltage grid and operating method for the switching device
US12206398B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Mar 9, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3275
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Various embodiments of the teachings herein include a switching device for a DC voltage grid. The device may include: a first controllable semiconductor switch with a control contact and two load contacts; and a controller for the first switch using a control signal at the control contact. The controller is configured to: actuate the first switch using a control pulse that causes the electrical conductivity of the semiconductor switch to reduce for less than 1 ms; apply a current to a test circuit including the first switch; ascertain a first value representing the voltage or the change in voltage across the first switch as a result of the control pulse and the applied current; analyzing the first value; and generating a signal that represents the functionality of the first semiconductor switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.