Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8848400 | System and method for reactive power regulation | Xiaoming Yuan, Zhuohui Tan | 2014-09-30 |
| 8693220 | System for improved wind turbine generator performance | Sidney Allen Barker | 2014-04-08 |
| 8676386 | Fault detection system for a generator | Sidney Allen Barker | 2014-03-18 |
| 8669669 | Voltage control in a doubly-fed induction generator wind turbine system | Robert Gregory Wagoner | 2014-03-11 |
| 8664788 | Method and systems for operating a wind turbine using dynamic braking in response to a grid event | Robert Gregory Wagoner, Allen Michael Ritter, Einar Vaughn Larsen, Sidney Allen Barker | 2014-03-04 |
| 8575772 | Permanent magnet machine control system | David Smith | 2013-11-05 |
| 8509958 | Power limiter system | Einar Vaughn Larsen, Sidney Allen Barker | 2013-08-13 |
| 8310074 | Method and apparatus for generating power in a wind turbine | Einar Vaughn Larsen, Sidney Allen Barker | 2012-11-13 |
| 8138620 | Methods and systems for operating a wind turbine power converter | Robert Gregory Wagoner | 2012-03-20 |
| 8120885 | Circuit for use with energy converter | — | 2012-02-21 |
| 8085564 | DC bus voltage control for two stage solar converter | David Smith, Robert Gregory Wagoner, Sidney Allen Barker | 2011-12-27 |
| 8046109 | Method and systems for operating a wind turbine | Einar Vaughn Larsen, Sidney Allen Barker | 2011-10-25 |
| 8022565 | Method and apparatus for controlling a wind turbine | Hartmut Scholte-Wassink, Mark Edward Cardinal, Till Hoffmann, Jignesh Gandhi, Sidney Allen Barker +2 more | 2011-09-20 |
| 7944068 | Optimizing converter protection for wind turbine generators | Robert Gregory Wagoner, Allen Michael Ritter, Scott Charles Frame, Steven Wade Sutherland, Sidney Allen Barker +1 more | 2011-05-17 |
| 7939959 | Wind turbine with parallel converters utilizing a plurality of isolated transformer windings | Robert Gregory Wagoner, Allen Michael Ritter | 2011-05-10 |
| 7928592 | Wind turbine with parallel converters utilizing a plurality of isolated generator windings | Robert Gregory Wagoner, Allen Michael Ritter | 2011-04-19 |
| 7855906 | DC bus voltage control for two stage solar converter | David Smith, Robert Gregory Wagoner, Sidney Allen Barker | 2010-12-21 |
| 7745949 | Method and apparatus for assembling electrical machines | Wenqiang Yang, Zhigang Lu, Ralph Teichmann, Changyong Wang, Haiqing Weng +1 more | 2010-06-29 |
| 7629705 | Method and apparatus for operating electrical machines | Sidney Allen Barker, John D. D'Atre, Einar Vaughn Larsen, Goran Drobnjak | 2009-12-08 |
| 7239036 | System and method for power control in wind turbines | John D. D'Atre, Allen Michael Ritter, David Smith, Robert Gregory Wagoner, Luis Jose Garces +1 more | 2007-07-03 |
| 6552508 | Apparatus and method for optimally controlling flux in an AC motor | Eddy Ying Yin Ho | 2003-04-22 |