Matches 1 - 46 out of 46


Match Document Document Title
US20120126758 HIGH VOLTAGE DC POWER GENERATION  
A DC power system includes a permanent magnet generator (PMG), and an active rectifier in electrical communication with the PMG. The active rectifier is adapted to actively rectify power output...
US20070126406 Turbine with Configurable Generator Circuit  
A device for generating electricity including a turbine capable of spinning at variable revolutions per minute (RPM), an electric generator circuit configurable to either a Wye-type generator...
US20090273192 Doubly fed axial flux induction generator  
A doubly fed axial flux induction generator may include a prime mover configured to provide mechanical energy. The doubly fed axial flux induction generator may also include a rotor assembly...
US20090251109 SYSTEMS AND METHODS INVOLVING STARTING VARIABLE SPEED GENERATORS  
An exemplary method for starting a generator, the method comprising, starting a rotor with an AC voltage across the rotor. Starting a stator. Increasing a speed of the rotor.
US20090302607 DOUBLE FED SYNCHRONOUS GENERATOR MOTOR  
A double fed synchronous generator motor which is coupled to a reversible pump-turbine and operated while switched to a power generating operation mode or a pumping operation mode, is equipped...
US20090058374 HIGH EFFICIENCY ALTERNATOR  
A high efficiency alternator capable of supplying extreme high power output with maximum dissipation of heat. Preferably, the alternator includes dual field coils mounted stationary around a...
US20080303490 GENERATOR WITH QUADRATURE AC EXCITATION  
A generator system is configured to supply two phase excitation current from an exciter rotor to a main generator rotor. When driven by a variable speed prime mover, the generator system provides...
US20090121688 POLE COUNT CHANGING GENERATOR  
Disclosed is a pole count changing generator capable of altering the number of poles contained within a generator. This pole count change is accomplished by changing the path through which...
US20080150494 Pole shifting generator  
An apparatus and method generate electric current within a specified frequency range from a rotor operating within a broad range of rotational speeds by reducing the number of poles of the...
US20080203978 Frequency converter for a double-fed asynchronous generator with variable power output and method for its operation  
A frequency converter circuit for a double-fed asynchronous generator with a variable power output, which can be connected to a voltage network contains a rotor rectifier, which can be connected...
US20090322084 Energy Systems, Energy Devices, Energy Utilization Methods, and Energy Transfer Methods  
Energy systems, energy devices, energy utilization methods, and energy transfer methods are described. In one arrangement, energy utilization methods include providing first energy from a power...
US20150102783 METHOD OF CONTROLLING SPEED OF A VARIABLE SPEED GENERATOR  
Some embodiments relate to a method of controlling speed of a variable speed generator. The method includes detecting a load of the variable speed generator and determining a target speed for the...
US20130278228 METHOD OF CONTROLLING SPEED OF A VARIABLE SPEED GENERATOR  
Some embodiments relate to a method of controlling speed of a variable speed generator. The method includes detecting a load of the variable speed generator and determining a target speed for the...
US20100327820 ACTIVE DAMPING FOR SYNCHRONOUS GENERATOR TORSIONAL OSCILLATIONS  
A generator control unit (GCU) provides active damping of a synchronous generator by monitoring the speed of the synchronous generator and detecting oscillations in the monitored speed. The...
US20150180393 Method Of Controlling Multiple Parallel-Connected Generators  
A generator system configured to be connected in parallel with other generators is disclosed. The generator system includes an alternator having a stator with an output winding and a quadrature...
US20100066098 CONTROLLING PROPELLER ROTOR OVERSPEED  
An engine having at least one stage of propeller rotor blades, and a load, the at least one stage being associated with electrical generation means to generate electricity for the load. The load...
US20080121525 Renewable Power Controller for Hydrogen Production  
A power controller for electric generation from renewable energy and consumption of said energy, where appropriate, to produce hydrogen. The controller improves overall system efficiency by...
US20050225302 Generator system and method for operating such a system  
The invention relates to a generator system for generating an increased braking power, in particular during the startup and/or powering down of a turbine, drivingly connected to a generator, of a...
US20150035501 SYSTEMS AND METHODS FOR CONTROLLING TORSIONAL OSCILLATION IN WOUND FIELD SYNCHRONOUS GENERATOR MACHINES  
A method for controlling torsional oscillation includes detecting angular position of a wound field synchronous generator machine, extracting information indicative of torsional oscillation,...
US20110062710 MULTI-STAGE CONTROLLED FREQUENCY GENERATOR FOR DIRECT-DRIVE WIND POWER  
A multi-sage controlled frequency generator is described that has a low size, weight and cost. The new generator requires an electronic controller that requires only 25% of the total generated...
US20090134847 Target regulation voltage setting apparatus  
The target regulation voltage setting apparatus for a vehicle on which a vehicle alternator is mounted includes a first function of calculating a large first-order delay and a small first-order...
US20090315522 SELF-EXCITED CONTROLLED FREQUENCY GENERATOR SYSTEM WITH BI-DIRECTIONAL CONVERTER  
A controlled frequency generating system (CFG) may be constructed with a main generator and an exciter driven by a common shaft. Excitation power may be provided from the common shaft; as distinct...
US20110267012 Methods and Apparatuses for Elimination of Torque Pulsation in Doubly Fed Induction Generators Using the Field Reconstruction Method  
Methods and apparatuses for substantially eliminating torque pulsation in a doubly fed induction machine are disclosed. An example method comprises: measuring a stator current of the doubly fed...
US20100052323 MAGNETICALLY GEARED GENERATOR  
The present invention provides a magnetically geared generator including an inner winding unit having a first number of pole pairs, an outer winding unit arranged coaxially around the inner...
US20150249413 SYSTEM AND METHOD FOR ADJUSTING CURRENT REGULATOR GAINS APPLIED WITHIN A POWER GENERATION SYSTEM  
In one aspect, a method for controlling the operation of a power generation system configured to supply power to an electrical grid may generally include monitoring a rotor speed of a generator of...
US20150048806 Method for operating a separately excited electric machine in a motor vehicle  
A method for operating a separately excited electric machine, in particular, a generator of a motor vehicle, where an exciting current flows through a rotor winding of the electric machine at a...
US20080147259 ELECTRIC POWER GENERATION CONTROL METHOD DURING IDLE CHARGE IN HYBRID ELECTRIC VEHICLE  
A method of controlling electric power generation during idle charge in a hybrid electric vehicle. The method includes determining whether an idle charge condition is satisfied; if the idle charge...
US20070108863 Stator for an electrical machine  
A stator of a three-phase generator, having a multi-strand stator winding in which each of the m phase windings (19) is comprised of a group (22), which has a first coil (24) with coil sides (28,...
US20130207391 VARIABLE SPEED ELECTRIC MACHINE AND METHOD FOR GENERATING ELECTRIC ENERGY  
A variable speed electric machine and a method for generating electric energy is provided. The electric machine includes an outer stator with a first set of field windings. Further, the electric...
US20090256522 Electric Vehicle Battery Charging by Driving the Propulsion Shaft  
A system and method for charging a battery of an electric vehicle is disclosed. An embodiment of the present invention enables an internal motor of an electric vehicle to be backdriven. When the...
US20080143119 Battery current detection apparatus incorporated in system which regulates vehicle engine speed and electric generator output voltage during engine idling  
A vehicle system that includes an engine control apparatus which regulates engine idling speed incorporates a battery current detection apparatus which acquires information expressing the value of...
US20080258693 Method for Controlling an Electromagnetic Retarder and System Including Retarder and a Control Unit  
A method for controlling an electromagnetic retarder from a control unit said retarder including an electrical generator. The inventive method is used to determine an excitation current intensity...
US20080303279 Generating Unit and Method For Producing a Current With a Predetermined Network Frequency  
According to the invention, a drive is embodied to drive a rotor at a variable rotational frequency; the rotor has a winding that is embodied to produce a rotary field magnetomotive force of a...
US20080191482 Apparatus for controlling power generation for vehicle  
An apparatus for controlling generation of power to be generated by a generator driven by an engine mounted on a vehicle equipped with an electrical load operative on the power from the generator,...
US20120243991 INFINITELY VARIABLE MOTION CONTROL (IVMC) FOR GENERATORS, TRANSMISSIONS AND PUMPS/COMPRESSORS  
Infinitely variable motion control (IVMC) provides motion control without any requirement for changing gears or use of a clutch. A spur gear transgear, defined as a system having an input, an...
US20080191483 Power generating device utilizing hydrodynamic force  
The power generating device (1000) has a vane (1200) rotated by hydrodynamic force from a fluid; a generator motor (100); a flow velocity measuring unit (1130); a rotation speed measuring unit;...
US20100164236 ENGINE GENERATOR SET CONTROL  
An engine generator set control system includes an engine, a generator, a frequency selection interface, a voltage regulator, and a controller. The engine includes a variable geometry turbocharger...
US20080136380 Method for Controlled Application of a Stator Current Set Point Value and of a Torque Set Point Value for a Converter-Fed Rotating-Field Machine  
The invention relates to a method for the controlled application of a stator-current target value (ISnom) and a torque target value (Mnom) for a polyphase machine (4) that is supplied by an...
US20050077881 Methods, systems and apparatus for regulating frequency of generated power using flywheel energy storage systems with varying load and/or power generation  
Featured are methods for regulating the AC frequency of the electrical power be supplied on an electrical distribution system or grid. Such a method includes electrically coupling an energy...
US20090085354 SYSTEM AND METHOD FOR CONTROLLING TORQUE RIPPLES IN SYNCHRONOUS MACHINES  
A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive...
US20120091973 VEHICLE-USE ELECTRIC ROTATING MACHINE  
A vehicle generator includes armature windings, rectifier module groups, an upper MOS on-timing determining section, a lower MOS on-timing determining section, a rotational speed calculating...
US20100148588 Genset control system implementing engine synchronization  
A control system for use with a genset is disclosed. The control system may have a bus configured to receive power from the generator set, and a first sensor configured to generate a first signal...
US20120306457 METHOD AND APPARATUS FOR OPERATING A POWERTRAIN SYSTEM IN RESPONSE TO ACCESSORY LOAD  
A powertrain system includes an electric machine mechanically coupled to an internal combustion engine mechanically coupled to a transmission. A method for operating the powertrain system includes...
US20120286523 RECONFIGURABLE STATORS  
A device includes a rotor and a stator with coils arranged to form a phase element. The phase element includes a first coil group including a first coil and a second coil and a second coil group...
US20170170765 SYNCHRONOUS ELECTRICAL POWER DISTRIBUTION EXCITATION CONTROL SYSTEM  
A system includes an exciter configured to operate with a synchronous generator. The exciter may be mechanically coupled and rotatable with the synchronous generator, or the exciter may be...
US20160204725 SELF ADJUSTING GENERATOR SPEED CONTROL  
The present invention relates to a generator control system that includes a generator, a variable displacement pump, a generator speed sensor, and a generator speed controller. The generator speed...

Matches 1 - 46 out of 46