Issued Patents All Time
Showing 51–75 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9240731 | Power cell bypass method and apparatus for multilevel inverter | Yuan Xiao, Haihui Lu, Douglas B. Weber | 2016-01-19 |
| 9236828 | Methods and power conversion system control apparatus to control IGBT junction temperature at low speed | Jiangang Hu, Jeffrey D. McGuire | 2016-01-12 |
| 9091742 | Fault identification techniques for high resistance grounded systems | Zhijun Liu | 2015-07-28 |
| 9092030 | Method to implement drive diagnostics and prognostics automatically | Bruce W. Weiss, Robert M. Michalski, Garron Morris, Brian P. Brown | 2015-07-28 |
| 9054586 | Methods and apparatus for continuous and discontinuous active rectifier boost operation to increase power converter rating | Yogesh Patel | 2015-06-09 |
| 9054599 | Power converter and integrated DC choke therefor | Yuan Xiao, Navid R. Zargari, Richard A. Lukaszewski | 2015-06-09 |
| 9048755 | Adjustable speed drive lifetime improvement system | Richard A. Lukaszewski, Russel J. Kerkman | 2015-06-02 |
| 9041234 | Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough | Haihui Lu, Zhenhuan Yuan, Russel J. Kerkman, Richard A. Lukaszewski, Ahmed S. Mohamed Sayed Ahmed | 2015-05-26 |
| 9042146 | DC pre-charge circuit | Bruce W. Weiss, Doyle F. Busse, Jeremy J. Keegan, Michael Loth, Rangarajan M. Tallam +1 more | 2015-05-26 |
| 9007787 | Method and apparatus for bypassing Cascaded H-Bridge (CHB) power cells and power sub cell for multilevel inverter | Navid R. Zargari, Yuan Xiao | 2015-04-14 |
| 8988026 | Single phase operation of a three-phase drive system | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2015-03-24 |
| 8953296 | AC pre-charge circuit | Bruce W. Weiss, Doyle F. Busse, Jeremy J. Keegan, Michael Loth, Rangarajan M. Tallam +1 more | 2015-02-10 |
| 8910372 | Method of fabricating a choke assembly | John R. Brubaker | 2014-12-16 |
| 8841917 | Ground scheme identification method | David W. Kirschnik, Richard A. Lukaszewski, Gary L. Skibinski | 2014-09-23 |
| 8816631 | Apparatus and method for energy efficient motor drive standby operation | Yogesh Patel, Brian P. Brown | 2014-08-26 |
| 8736091 | Converter lifetime improvement method for doubly fed induction generator | Russel J. Kerkman, Richard A. Lukaszewski, Haihui Lu, Zhenhuan Yuan | 2014-05-27 |
| 8698504 | System for detection of a ground fault in a high resistance ground network | Zhijun Liu, Brian P. Brown, David W. Kirschnik, Russ J. Kerkman, Richard A. Lukaszewski +2 more | 2014-04-15 |
| 8643383 | Drive failure protection | Yuan Xiao, Doyle F. Busse | 2014-02-04 |
| 8593150 | Method and apparatus for detecting a location of ground faults in a motor/motor drive combination | Zoran Vrankovic, Gary L. Skibinski, Craig R. Winterhalter | 2013-11-26 |
| 8570003 | Double fed induction generator converter and method for suppressing transient in deactivation of crowbar circuit for grid fault ridethrough | Haihui Lu, Zhenhuan Yuan, Russel J. Kerkman, Richard A. Lukaszewski, Ahmed Mohamed Sayed Ahmed | 2013-10-29 |
| 8570775 | CMV reduction under bus transient condition | Yuan Xiao, Richard A. Lukaszewski, Navid R. Zargari | 2013-10-29 |
| 8537575 | Power converter and integrated DC choke therefor | Yuan Xiao, Navid R. Zargari, Zhongyuan Cheng | 2013-09-17 |
| 8519655 | DC bus boost method and system for regenerative brake | Richard A. Lukaszewski, Russel J. Kerkman, Brian J. Seibel | 2013-08-27 |
| 8471516 | Adjustable speed drive lifetime improvement method | Richard A. Lukaszewski, Russel J. Kerkman | 2013-06-25 |
| 8432052 | Wind power converter system with grid side reactive power control | Haihui Lu, Richard A. Lukaszewski, Russel J. Kerkman, Zhenhuan Yuan | 2013-04-30 |