| Patent Number |
Title Of Patent |
Date Issued |
| 7554302 |
Slip-controlled, wound-rotor induction machine for wind turbine and other applications |
June 30, 2009 |
| A system and method for providing constant-frequency electrical power from variable-speed mechanical power are disclosed. The system includes a wound-rotor induction machine generator (WRIMG), a first power converter, e.g., an inverter or a bridge rectifier, that provides power from the |
| 7514907 |
Device, system, and method for providing a low-voltage fault ride-through for a wind generator f |
April 7, 2009 |
| A device, a system, and a method for preventing power-producing wind turbine generators from tripping due to the detection of a low-voltage condition on a power grid are disclosed. The disclosed device includes a resistor bank that absorbs real power and a control system that maintains |
| 6433520 |
Dc power regulator incorporating high power ac to dc converter with controllable dc voltage and |
August 13, 2002 |
| A high power dc power regulator utilizes a voltage sourced inverter connected on the ac side in series with a large inductance to an ac power system through a coupling transformer. The dc side of the inverter is connected to the dc load. The inductance is sized such that the voltage at |
| 5889668 |
Three-phase DC-to-AC power inverter with three-level poles |
March 30, 1999 |
| A three-phase dc to-ac power inverter includes a dc power source with a first dc node for positive voltage, a second dc node for negative voltage, and a third dc node for zero voltage. A set of three-level pole circuits are connected to the first dc node, the second dc node, and the thir |
| 5808452 |
Power flow controller with dc-to-dc converter linking shunt and series connected inverters |
September 15, 1998 |
| A unified power flow controller has a dc-to-dc converter which uses the dc voltage produced by a first static inverter, connected in shunt with a transmission line and providing parallel reactive compensation, to establish the magnitude of a series compensation voltage injected into the |
