Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9112347 | DC grid and a method of limiting the effects of a fault in a DC grid | Bertil Berggren, Jürgen Häfner, Lars-Erik Juhlin, Lidong Zhang | 2015-08-18 |
| 9042071 | Breaker failure protection of HVDC circuit breakers | Bertil Berggren, Jianping Wang, Juiping Pan, Reynaldo Nuqui | 2015-05-26 |
| 8817427 | Current limitation system for limiting the effects of a fault in a DC grid and a method of operating a current limitation system | Bertil Berggren, Jürgen Häfner, Lars-Erik Juhlin, Lidong Zhang | 2014-08-26 |
| 8803358 | HVDC switchyard and an HVDC switchyard system | Jürgen Häfner, Björn Jacobson, Tomas Jonsson, Bertil Berggren | 2014-08-12 |
| 8749933 | Fault protection of HVDC transmission lines | Bertil Berggren, Jianping Wang, Juiping Pan, Kailash Srivastava, Reynaldo Nuqui | 2014-06-10 |
| 8736112 | Multi-terminal DC transmission system and method and means for control there-of | Gunnar Flisberg, Lars-Erik Juhlin, Per Holmberg | 2014-05-27 |
| 8553437 | Method and control device for controlling power flow within a DC power transmission network | Bertil Berggren, Rajat Majumder, Charles Sao | 2013-10-08 |