Patents for H02P 9 - Arrangements for controlling electric generators for the purpose of obtaining a desired output (15,039)
08/1980
08/19/1980CA1084113A1 Induction generator excitation system
08/12/1980US4217538 Regulated permanent magnet D.C. power supply
08/05/1980US4216514 Protective device for brushless exciting device
07/1980
07/29/1980CA1082770A1 Variable speed, constant frequency induction generator system
07/29/1980CA1082768A1 Excitation system for multi-phase induction generator
07/23/1980EP0013637A1 Electrical D.C. supply circuit with polarity inversion control and adjustable voltage for an autonomous electromagnetic hoisting device
07/09/1980EP0012961A1 Device for the determination of faults in electric distribution networks influencing the frequency and application of such a device for frequency regulation in said networks
07/08/1980US4211932 Power recovery system
07/08/1980US4211931 Electronic speed error signal processing circuit
07/01/1980US4210857 Field exerting and regulator circuit for a brushless alternator
06/1980
06/24/1980CA1080304A1 Electronic voltage regulator for three-phase generators
06/17/1980US4208591 Gas turbine power plant control apparatus including a turbine load control system
06/11/1980EP0011807A1 Circuitry for damping power oscillations in networks
05/1980
05/27/1980US4205235 Automatic electrical load matching device for wind generators
04/1980
04/30/1980EP0010449A1 A method of and apparatus for charging a vehicle battery
04/22/1980CA1076204A1 Electrical generating system, particularly for automotive use
04/16/1980EP0009895A1 A voltage control apparatus for electric generators for vehicles
04/08/1980US4197492 Current generating system with output winding switching device
03/1980
03/25/1980CA1074395A1 Quadrature axis field brushless exciter
03/11/1980US4193005 Multi-mode control system for wind turbines
03/05/1980EP0008584A1 Multi-mode control system for wind turbines
03/04/1980CA1073049A1 Main field current transient control circuit for dynamoelectric machines
02/1980
02/19/1980US4188781 Non-linear dual mode regulator circuit
02/12/1980CA1071735A1 Steam turbine control system and method
02/06/1980EP0007389A1 Power recovery system and method therefor
01/1980
01/29/1980CA1070757A1 Field overvoltage protecting apparatus for synchronous machine
01/22/1980US4185203 Closed loop rotational speed control system for twin-shaft type gas turbine electric generator
01/15/1980US4184083 Closed loop rotational speed control system for gas turbine engine electric generator
01/08/1980US4182960 Integrated residential and automotive energy system
01/01/1980US4181840 Anticipative turbine control
12/1979
12/18/1979US4179742 System for intelligently selecting the mode of control of a power plant
12/04/1979US4177415 Voltage regulator for use with a polyphase magneto generator
12/04/1979US4177414 Controllable voltage A.C. generator system
11/1979
11/27/1979CA1067149A1 Three-phase quasi-square wave vscf induction generator system
11/13/1979CA1066392A1 Lifting force responsive load control for electrically propelled earthmoving vehicles
11/01/1979WO1979000878A1 Device for smoothing an output voltage of an electric generator
10/1979
10/31/1979EP0004984A1 Frequency control circuit for electric power distribution networks
10/18/1979WO1979000815A1 Charging generator controllers
10/02/1979US4169992 Feedback speed control of spring powered generator
07/1979
07/17/1979US4161658 Wind turbine generator having integrator tracking
07/11/1979EP0002981A1 Method and apparatus for regulating the voltage of an electrical generator
06/1979
06/12/1979CA1056453A1 Gas turbine power plant control apparatus including an ambient temperature responsive control system
06/12/1979CA1056452A1 Gas turbine power plant control apparatus including a load control system
05/1979
05/22/1979US4156172 Main field current transient control circuit for dynamoelectric machines
05/15/1979US4155107 Generator earth fault protection
05/15/1979CA1054484A1 Flow tubes for producing electric energy
05/01/1979US4152636 Fast de-excitation brushless exciter
05/01/1979US4151712 Protective shutdown system for combined cycle plant having a dual liquid fuel system
04/1979
04/03/1979CA1051977A1 Modulated induction generator
03/1979
03/27/1979US4146264 Load control for wind-driven electric generators
03/06/1979US4143313 Automotive voltage regulator to control voltge supply to an on-board vehicle network
03/06/1979US4143280 Control system for a tertiary winding self-excited generator
03/06/1979CA1050125A1 Synchronous demodulator circuit
02/1979
02/27/1979US4141613 Electrical generating system, particularly for automotive use
02/13/1979US4139780 Multi-channel generator drive system
02/06/1979US4138634 Automatic voltage regulator for an AC generator with a field winding
02/06/1979US4137780 Apparatus for monitoring phase currents and torsional vibrations of a turbine-generator
01/1979
01/30/1979CA1047601A1 Device for automatic excitation of brushless electrical machines
12/1978
12/12/1978US4129819 Voltage regulator circuit for motor vehicle generator with feedback to oppose regulator transients
12/12/1978US4129818 Excitation control apparatus suited for normal stop operation of synchronous generators
12/05/1978US4128802 Solid state voltage regulated automotive-type electrical power supply system
12/05/1978US4128801 Voltage regulator structure for automotive-type generators
10/1978
10/10/1978US4118935 Regulation system for a steam turbine installation
10/03/1978US4118749 Field overvoltage protecting apparatus for synchronous machine
09/1978
09/26/1978US4117388 Alternating current generator
09/12/1978US4114084 Turbine-generator protection system with electronic sampling filter
09/12/1978CA1038476A1 Power application controller for a prime mover to adjust its power out to a demand load
08/1978
08/29/1978CA1037560A1 Voltage regulator with controlled current boost
08/15/1978US4107542 Time delayed relay sequencer and alarm reset for a gas turbine local maintenance controller
08/15/1978CA1036669A1 Gas turbine power plant control apparatus including a temperature reset starting control system and an ignition pressure control system
08/08/1978US4105963 Brushless welding generator
07/1978
07/25/1978US4103217 Brushless synchronous generator with an exciter
07/04/1978US4099237 Programmable turbine speed controller
07/04/1978US4099067 Load-shedding control for diesel-electric sets
06/1978
06/20/1978US4096429 Voltage and current regulator for generating systems
06/13/1978US4095120 Load control for wind-driven electric generators
06/06/1978US4093869 Quadrature axis field brushless exciter
05/1978
05/16/1978US4090065 System and method for operating a steam turbine with protection provisions for a valve positioning contingency
05/09/1978US4088875 Optimum sequential valve position indication system for turbine power plant
05/02/1978US4087698 Alternating current power generating system
03/1978
03/28/1978US4081692 Apparatus for supplementing commercial power subject to brownout and blackout failures
03/21/1978US4080559 Torsional protective device for power system stabilizer
03/14/1978USRE29579 Dual source auxiliary power supply
03/14/1978US4079307 Alternating current generating device
02/1978
02/14/1978US4074357 Analog control and digital system with integrated interface for electric power and other plants
01/1978
01/17/1978US4069424 Shaft turning parking bus for multiple unit installations utilizing a single motorized generator control system
11/1977
11/22/1977US4059771 Wind electric plant with improved alternator field excitation
10/1977
10/11/1977US4053786 Transducer out of range protection for a steam turbine generator system
10/11/1977US4053746 System and method for operating a steam turbine with digital computer control having integrator limit
09/1977
09/06/1977US4047095 Brushless three-phase current generator having a device for self-excitation and automatic control of the energizing current
08/1977
08/23/1977US4044296 Electronic voltage regulator for three-phase generators
08/09/1977US4041368 Three-phase, quasi-square wave VSCF induction generator system
08/02/1977US4040115 Semi-conductor regulators, particularly for motor vehicle generators
07/1977
07/12/1977US4035713 Automatic voltage regulating system in brushless generator
07/12/1977US4035712 Electrical generating apparatus
06/1977
06/28/1977US4032835 Brushless exciter supplemental ceiling excitation system
06/21/1977US4031455 Excitation circuit for brushless synchronous welding generators
05/1977
05/24/1977US4025762 Reference signal circuit
05/17/1977US4024456 Generator system with speed responsive output winding switching device
04/1977
04/26/1977US4019315 Gas turbine power plant control apparatus including a temperature reset starting control system and an ignition pressure control system