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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8058753 | Wide area transmission control of windfarms A means for improving the dynamic and voltage stability of utility transmission systems is provided by the coordinated control of windfarms. Electrical measurements of the system, which may include synchronized phasors, are supplied to one or more windfarm controlle... | 11/15/2011 |
| 7619327 | Hybrid electromechanical power transfer system An electromechanical power transfer system that transfers power between a prime mover and a combination of multiphase alternating current (AC) and direct current (DC) electrical power systems, comprises: a dynamoelectric machine that has a rotor assembly coupled to ... | 11/17/2009 |
| 7573160 | Methods and apparatus for controlling windfarms and windfarms controlled thereby A method for controlling power produced by a windfarm includes regulating active power produced by the windfarm in accordance with an apparent power setpoint, and regulating a power factor of the windfarm in accordance with a power factor setpoint. However, during p... | 08/11/2009 |
| 7276817 | Output voltage control apparatus for vehicular AC generator There is provided an output voltage control apparatus for a vehicular AC generator in which a generator output voltage including a ripple component can be made to more approach a reference voltage. The control apparatus includes a comparison circuit to compare a det... | 10/02/2007 |
| 7256514 | Device and method for operating an electrical machine for a motor vehicle Device and method for operation of at least one electrical machine for a motor vehicle. In order to coordinate torque requirements for the propulsion system and voltage requirements for the vehicle power supply system and at least one battery for the vehicle power s... | 08/14/2007 |
| 7224578 | Ergonomic control panel for a portable electric generator A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120 VAC electrica... | 05/29/2007 |
| 7180210 | Standby generator integration system A standby generator integration system for efficiently integrating one or more standby generators into an operational power grid. The standby generator integration system includes a control center in communication with a plurality of control units. Each of the contr... | 02/20/2007 |
| 7105944 | Engine starting device with a starter-generator A starter motor is prevented from being rotated together with an engine after the start of a engine. When motor speed exceeds the cranking speed after the start of the engine, a speed judging section 36 judges that the starter motor is rotated together with t... | 09/12/2006 |
| 7093443 | Gas turbine apparatus A gas turbine apparatus has a combustor 2 for combusting fuel to produce a combustion gas, a turbine 1 which is rotated by the combustion gas, an electric generator 5 coupled to the turbine 1, and a fuel flow control valve 10 confi... | 08/22/2006 |
| 6801425 | Ergonomic control panel for a portable electric generator A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120VAC electrical... | 10/05/2004 |
| 6696773 | Vehicle generator control system A generator control system of a vehicle AC generator includes a field coil, a first polyphase armature winding, a second polyphase armature winding, a first rectifier connected to the first armature winding and a second rectifier connected to the second a... | 02/24/2004 |
| 6639331 | Parallel generator power system A system for connecting one of a plurality of parallel connected generator sets to a common bus. The system includes a separate module associated with each of the plurality of generator sets. When a control module receives a ready-to-load signal from the ... | 10/28/2003 |
| 5770911 | Resonant thermoelectric generator A resonant thermoelectric generator includes a thermoelectric power converter connected in series with a resonant circuit. A current generated by the thermoelectric power converter is cycled back and forth in the resonant circuit. The polarity of the ther... | 06/23/1998 |
| 5694026 | Turbine generator set without a step-down gear box The invention relates to a turbine generator set comprising a turbine and a generator coupled to each other without a step-down gear box, and a static frequency converter connected in series between said generator and an AC electricity grid having a given... | 12/02/1997 |
| 5424958 | Real time resource allocation The method allocates a demanded amount of power to a plurality of power output apparatus, each power apparatus having characteristic curves associated therewith, and the total power outputted from the plurality of power apparatus results in a minimum cost... | 06/13/1995 |
| 5404314 | Real time environmental load allocation The method allocates a demanded amount of power to a plurality of power output apparatus, each power output apparatus having an emissions curve associated therewith, such that each of the power output apparatus supplies a portion of the demanded power, an... | 04/04/1995 |
| 5388033 | Real time load allocation with additional constraints The method allocates a demanded amount of power to a plurality of power output apparatus, each power output apparatus having characteristic curves associated therewith, such that each of the power output apparatus supplies a portion of the demanded power,... | 02/07/1995 |
| 4330715 | Automatic feedback system A system adapted to be coupled to the alternator-rectifier system of a motor vehicle including a feedback capacitor coupled from the stator windings to the rotary coil for applying a pulsating DC output to the rotary coil when a welding load is applied to... | 05/18/1982 |
| 4308465 | Frequency control for paralleled AC systems A frequency control utilizing a reference oscillator and a signal controlled oscillator is disclosed. The frequency control maintains the frequency of an output signal at the same frequency as the reference oscillator if there is no signal present at a fr... | 12/29/1981 |
| 4099067 | Load-shedding control for diesel-electric sets A load-shedding control for diesel-electric motor-generator sets, which allows temporary overloads to be accommodated without engine lugging by reducing the line voltage if an attempt is made to draw more than a presettable maximum normal wattage. The lin... | 07/04/1978 |
