Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11476658 | Communication less control technique for hybrid HVDC | Saurav Roy-Choudhury, Gaurav-Kumar Kasal, Morteza Mohammadi, Mats Andersson | 2022-10-18 |
| 11349384 | Energization of a converter including a mix of half-bridge and full-bridge submodules | Praveen Kumar Barupati | 2022-05-31 |
| 10931114 | Controlling a voltage source converter in a DC system | Adil Abdalrahman, Per Holmberg | 2021-02-23 |
| 10374412 | Method and arrangement for facilitating clearing of a pole fault and isolation of a faulted pole in a power transmission system | Sören Nyberg, Yifan Jia | 2019-08-06 |
| 10050551 | Arrangement, method and computer program product for limiting circulating currents | Sri Ramya Kalluri, Gaurav-Kumar Kasal, Jürgen Häfner | 2018-08-14 |
| 9831865 | RC-IGBT switching pulse control | Annika Lokrantz, Kristoffer Nilsson, Christer Sjöberg, Lars Döfnäs, Wim Van-Der-Merwe | 2017-11-28 |
| 9812982 | Method in, apparatus for, and interface arrangement between an alternating current power system and a direct current power system | — | 2017-11-07 |
| 9379633 | HVDC system and method to control a voltage source converter in a HVDC system | — | 2016-06-28 |
| 9312786 | Cells control in a multilevel converter | — | 2016-04-12 |
| 8946917 | Method for controlling power flow within a wind park system, controller, computer program and computer program products | Per Holmberg, Lars-Erik Juhlin | 2015-02-03 |
| 8779730 | Capacitor discharge in a cell based voltage source converter | Lars Döfnäs, Roland Siljeström | 2014-07-15 |
| 8767422 | Interface arrangement between AC and DC systems using grounding switch | Baoliang Sheng | 2014-07-01 |
| 8760888 | HVDC system and method to control a voltage source converter in a HVDC system | — | 2014-06-24 |
| 8542505 | Precision switching for carrier based PWM | — | 2013-09-24 |
| 8305778 | Method and system to influence the power generation of an adjustable speed generator | — | 2012-11-06 |
| 7239535 | Voltage source converter | Roland Siljeström, Lars Döfnäs | 2007-07-03 |
| 6411066 | Method to control the flow of active power in a high voltage direct current transmission system and device for the same | — | 2002-06-25 |
| 6400585 | Method and control system for voltage control at a converter station | — | 2002-06-04 |