About 959 results
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https://drivepatents.com/patents/977721 · 5 Mar 2014
A voltage control system for a wind turbine generator 110 is disclosed. The system includes a reactive power regulator 240 configured to control reactive power production by the wind turbine generator by adjusting a voltage setpoint for the generator. The ...
https://drivepatents.com/patents/977723 · 5 Mar 2014
In one aspect, a method for controlling a dual-fed induction generator (DFIG) 118 during a high-voltage grid event is provided. The method includes setting, by a controller 202, an output of a closed-loop portion of a rotor current regulator to a fixed val...
https://drivepatents.com/patents/978264 · 19 Feb 2014
A sensor assembly 100 with a protective coating 108 and a method of applying the coating is disclosed. The sensor assembly 100 includes a sensor 102, a first conductive lead 104 extending from the sensor, a second conductive lead 106 extending from the sen...
https://drivepatents.com/patents/978253 · 19 Feb 2014
An energy power converter system 110 is provided. According to one embodiment, the system 110 includes a plurality of parallel converters 110-1 ... 110-N; a main transformer 500 with a separate magnetic path for magnetic fields are generated in the transfo...
https://drivepatents.com/patents/978240 · 19 Feb 2014
A transportation system 100 is disclosed for transporting a rotor blade 16 having a first end and a second end defining a rotor blade length. The transportation system 100 includes a truck 110 configured to transport the rotor blade 16, the truck 110 inclu...
https://drivepatents.com/patents/978469 · 12 Feb 2014
A controller for use with a power generation system (150) coupled to an electrical grid (136) is provided. The controller includes a circuit (172) configured to receive a phase locked loop (PLL) error signal (190) representative of a difference between a p...
https://drivepatents.com/patents/978807 · 5 Feb 2014
A material is described of formula NaMAlSiOwith Face Centered Cubic (fcc) lattices forming F -4 3 m cubic structure, wherein M is at least one of lithium, potassium, rubidium, caesium, vanadium, chromium, iron, cobalt, nickel, ruthenium, rhodium, palladium...
https://drivepatents.com/patents/978800 · 5 Feb 2014
This disclosure describes examples of a filter media for use in filter devices, e.g., pulse filter cartridges found in power generating systems. Embodiments of the filter media include a base media (202) and a membrane (218), which partially covers one or ...
https://drivepatents.com/patents/978792 · 5 Feb 2014
Systems and methods are provided for controlling an uninterruptible power supply (UPS) to transition between three- or higher-level operation and two-level operation in a neutral-point-clamped (NPC) inverter (22). In an example, a UPS system (10) includes ...
https://drivepatents.com/patents/979119 · 29 Jan 2014
An uninterruptible power supply (UPS) apparatus is disclosed that can receive power from different electrical utility configurations. The input stage (200) of the UPS includes a three phase rectifier bridge (140) design having three legs (110,120,130) conf...