Abstract: A method for operating a wind turbine is provided. The wind turbine has a tower with external tower loads acting thereon and has an aerodynamic rotor with rotor blades having adjustable pitch angles, which rotor generates rotor thrust. The method comprises the following steps: determining a speed of a tower head of the tower and/or of a nacelle of the wind turbine, determining an absolute wind speed in the region of the wind turbine, determining a pure wind power on the rotor on the basis of the absolute wind speed, determining an apparent wind power on the rotor on the basis of the speed of the tower head and/or of the nacelle, determining an aerodynamic tower vibration power on the basis of a difference between the apparent wind power and the pure wind power, and performing feedback control of the wind turbine using the aerodynamic tower vibration power.

Abstract: A method, controller, wind power plant, and computer program product are disclosed for operating a wind power plant comprising a plurality of wind turbines, the wind power plant producing a plant power output. The method comprises receiving a modulation request signal indicating a requested modulation of the plant power output, the requested modulation specifying a modulation frequency. The method further comprises generating a respective power reference signal for each of at least two wind turbines of the plurality of wind turbines selected to fulfill the requested modulation, Each generated power reference signal includes a respective modulation component corresponding to a portion of the requested modulation and having a frequency different than the modulation frequency.

Abstract: Various systems and methods for an engine system which includes a throttle turbine generator having a turbine which drives an auxiliary generator and disposed in a throttle bypass are described. In some examples, a throttle bypass valve is controlled to adjust airflow through the throttle bypass responsive to airflow to cylinders of the engine. In other examples, an operating parameter such as throttle position is controlled based on transient operating conditions of the engine. In still other examples, charging of a battery is coordinated between the auxiliary generator and a primary generator.

Abstract: An electronic digital governor assembly includes a case, a printed circuit board housed within said case, the printed circuit board having control circuitry configured for controlling at least one parameter of an energy production device, and a user interface including a digital display for displaying a value of the at least one parameter and at least one button for selectively adjusting the value.

Abstract: A microprocessor controlled automated, multi-fuel apparatus to blend hydrogen, bio-fuel and/or natural or propane gases. This novel multi-stage apparatus first converts cooking oils into bio-fuel. The system automatically blends the bio-fuel with at least one of or both hydrogen gas, generated by a self-contained on-board hydrogen electrolyzer, and/or natural or propane gases. This blended “Hyenrich” gaseous fuel drives various processes including, but not limited to, cogeneration systems and electrical generators to produce “green” electricity by utilizing an adaptive and predictive learning algorithms to significantly reduce cost per kilowatt and lessen dependency on the over taxed utility grid, while simultaneously reducing emissions of CO, CO2 and NOx, making the method and apparatus an environmentally-friendly energy device.

Abstract: A power generator according to an embodiment includes a propeller, a position detector, and a pitch controller. The propeller includes a plurality of blades whose pitch angle is changeable, and is rotated by a fluid. The position detector detects the rotational position of the propeller. The pitch controller performs pitch control processing for changing the pitch angle depending on the position of each of the blades specified by the rotational position of the propeller.

Abstract: A control system is provided for a power generating system having a gas turbine, a flue gas exhaust stage and a blow-off valve assembly. The gas turbine includes a compression stage, a combustion stage and a driveshaft. The blow-off valve assembly is configured to selectively provide fluid communication between the combustion stage and the flue gas exhaust stage. The control system includes a controller configured to output a signal causing the blow-off valve assembly to provide the fluid communication in response to a sudden de-loading of the gas turbine.

Abstract: Systems and methods for providing AC power from multiple turbine engine spools are disclosed. An aircraft system in a particular embodiment includes an engine having a first shaft connected and a second shaft. The aircraft system can further include a bus system and a first energy converter including a starter/generator, coupled between the first shaft and the bus system to convert a first variable frequency energy transmitted by the first shaft to a first generally constant frequency energy. A second energy converter can be coupled between the second shaft and the bus system, with the second energy converter including a generator to convert a second variable frequency energy transmitted by the second shaft to a second generally constant frequency energy.

Abstract: A method for operating a four-stroke internal combustion engine including a crankshaft coupled to a piston, which includes moving the piston in accordance with a sequence of four different strokes; mechanically driving an electric power generator with the crankshaft during the operating of the engine; generating a first sensor signal indicative of each revolution of the crankshaft with the crankshaft rotating twice during the sequence of four different strokes; providing a second sensor signal corresponding to a working fluid characteristic of the engine, the working fluid characteristic changing during the sequence of four different strokes of the piston; and timing ignition of the engine as a function of the first sensor signal and the second sensor signal.

Abstract: Systems and methods for providing AC power from multiple turbine engine spools are disclosed. A system in a particular embodiment includes a turbofan engine having a compressor, a first turbine and a first shaft connected between the compressor and the first turbine, and a fan, a second turbine and a second shaft connected between the fan and the second turbine. The system can further include a state power bus and a first energy converter coupled between the first shaft and the power bus, with the first energy converter including a starter/generator, and being positioned to convert a first variable frequency energy transmitted by the first shaft to a first generally constant frequency energy.

Abstract: A fire truck or rescue vehicle idle reduction system, including: a fire truck or rescue vehicle; an engine in the fire truck or rescue vehicle; a battery in the fire truck or rescue vehicle; an alternator connected to the engine for changing the battery; a generator in the fire truck or rescue vehicle; an alternator connected to the generator for charging the battery; a ventilation system in the fire truck or rescue vehicle, the ventilation system being powered by the battery; a lighting system in the fire truck or rescue vehicle, the lighting system being powered by the battery; a parking brake system in the rescue vehicle; a system for determining whether the parking brake is engaged; and a system for shutting off the engine and starting the generator when the parking brake is engaged.

Abstract: A method for operating a four-stroke internal combustion engine including a crankshaft coupled to a piston, which includes moving the piston in accordance with a sequence of four different strokes; mechanically driving an electric power generator with the crankshaft during the operating of the engine; generating a first sensor signal indicative of each revolution of the crankshaft with the crankshaft rotating twice during the sequence of four different strokes; providing a second sensor signal corresponding to a working fluid characteristic of the engine, the working fluid characteristic changing during the sequence of four different strokes of the piston; and timing ignition of the engine as a function of the first sensor signal and the second sensor signal.

Abstract: A fuel gas generator includes: a combustion chamber generating thermal energy through combustion of air and fuel gas therein, and supplying the thermal energy to a thermal engine such that the thermal engine is driven to generate kinetic energy that is converted into electrical energy by an electric generator; a temperature sensor for generating a sensing signal indicative of a temperature in the combustion chamber; and a controller for controlling a flow valve coupled to the combustion chamber based on the sensing signal such that the flow valve is switched to an OFF state upon detecting that the temperature is higher than a first temperature, thereby supplying the air and the fuel gas to the combustion chamber therethrough, and to an OFF-state upon detecting that the temperature is lower than a second temperature lower than the first temperature, thereby ceasing supply of the air and the fuel gas to the combustion chamber.

Abstract: Provided is a power supply device including: a magneto generator (1), which includes: a rotor including a magnet forming a magnetic field; and a stator which generates an alternating current in stator windings by rotation of the rotor; a rectifying unit (3) which rectifies the alternating current generated by the magneto generator to a direct current; a variable transformation-ratio direct current voltage transformer (40) which transforms an output voltage of the direct current of the rectifying unit to a voltage between input terminals of an electrical load (2) to which electric power is supplied; and a voltage control unit (5) which controls a transformation ratio of the variable transformation-ratio direct current voltage transformer in accordance with at least one of an operating state signal regarding the rotation of the rotor of the magneto generator and an electrical load state signal of the electrical load.

Abstract: A control system for an engine having a first cylinder and a second cylinder is disclosed having a first engine valve movable to regulate a fluid flow of the first cylinder and a first actuator associated with the first engine valve. The control system also has a second engine valve movable to regulate a fluid flow of the second cylinder and a sensor configured to generate a signal indicative of a pressure within the first cylinder. The control system also has a controller that is in communication with the first actuator and the sensor. The controller is configured to compare the pressure within the first cylinder with a desired pressure and selectively regulate the first actuator to adjust a timing of the first engine valve independently of the timing of the second engine valve based on the comparison.

Abstract: This invention presents improved combustion methods, systems, engines and apparatus utilizing H2, O2 and H2O as fuel, thereby providing environmentally friendly combustion products, as well as improved fuel and energy management methods, systems, engines and apparatus. The Water Combustion Technology; WCT, is based upon water (H2O) chemistry, more specifically H2O combustion chemistry and thermodynamics. WCT does not use any hydrocarbon fuel source, rather the WCT uses H2 preferably with O2 and secondarily with air. The WCT significantly improves the thermodynamics of combustion, thereby significantly improving the efficacy of combustion, utilizing the first and second laws of thermodynamics. The WCT preferably controls combustion temperature with H2O and secondarily with air in the combustion chamber. The WCT preferably recycles exhaust gases as fuel converted from water.

Abstract: A self-propelled working machine, which performs work by using power of an internal combustion engine 10 and travels by using power of an electric motor 30, includes a mechanical governor 75 for maintaining the engine at a designated engine rotational speed Nf. A load control mechanism for the working machine has a maximum working output calculator that calculates a maximum working output Qf from the designated engine rotational speed, an actual working load calculator that calculates an actual working load Qr from the designated engine rotational speed Nf and a detected actual engine rotational speed Nr, and a limit speed calculator that calculates a limit speed Vc from the maximum working output Qf and the actual working load Qr. A travel controller operates and controls the electric motor 30 by setting a travel speed V to the limit speed Vc when the actual engine rotational speed Nr is decreased to be lower than the designated engine rotational speed Nf.

Abstract: A power supply control system for a vehicle includes a supply line system, a first electric generating means, a second electric generating means, and a control means. The first electric generating means generates electricity through use of a mechanical drive force of a drive source of the vehicle, which drives the vehicle to run. The second electric generating means generates electricity through use of a heat energy. The first and second electric generating means are connected to the supply line system. The control means controls the first electric generating means and the second electric generating means.

Abstract: An electrical power generator includes a controller for making a full power capacity of the generator available for consumption by at least one intelligent load coupled to an output of the generator. The controller obtains data from which both a present output power of the generator and a power capacity of the generator can be determined. The controller then provides the intelligent load with data indicative of both the present output power and the power capacity of the generator for use by the load in controlling its power consumption.

Abstract: A power generation system for propelling, and generating electrical power in, an aircraft, using a gas turbine engine coupled to a turbine starter/generator unit having therein an electrical machine capable of being selected to be alternatively a motor and an electrical power generator and having a coupling shaft extending therefrom to be engaged with the air compressor in the gas turbine engine and further having an interconnection conductor for electrical energization. An internal combustion engine provided as an intermittent combustion engine in the aircraft has an air intake coupled through an air transfer duct connected to the air compressor to allow the transfer of compressed air thereto, and has in connection therewith a supply starter/generator unit with a coupling shaft extending therefrom to be engaged with the intermittent combustion engine power shaft.

Abstract: A method for controlling a power source (1, 10) of a forestry machine, wherein the power source utilizes directly or indirectly one or more work devices and/or handling devices (3, 4, 7, 8) positioned in the forestry machine and is controlled by a control unit (2). When the control unit in the forestry machine gives one or more work or handling devices a control command starting a change operation, it is transmitted substantially simultaneously to the power source. When arriving at the power source, one or more control commands requiring a power change of the power source affect control parameters of the power source, predicting the future load of the power source.

Abstract: An electric power generation system 10 with a combustion turbine 12 as a prime mover for a main generator 16 is provided. The power generation system includes a dynamoelectric machine 30 that may be used both as the starting motor and as a generator to provide a source of excitation power that is essentially independent of a local power system and thereby not susceptible to voltage fluctuations and/or power interruptions.

Abstract: A service pack for a work vehicle provides service systems, which may include an electrical generator, a hydraulic pump and an air compressor. The service pack is driven by an engine separate from that of the vehicle. Integration of the support systems for the vehicle engine and service engine may be provided. The service pack allows the vehicle engine to be shut down when at a service location, with the service pack engine alone providing the necessary electrical, hydraulic and compressed air services for maintenance and other service work.

Abstract: The present invention provides a system, method and apparatus for a redundant prime mover system to drive a machine having an engine coupled to the machine, and a motor/generator coupled to the machine and an electrical network connection. The controller operates the engine and the motor/generator in three or four operating modes. The first operating mode drives the machine with the engine. The second operating mode drives the machine with the motor/generator. The third operating mode drives the machine and the motor/generator with the engine such that the motor/generator generates electricity for delivery to the electrical network connection. Alternatively, the third operating mode drives the machine with both the engine and the motor/generator. This alternate operating mode can also be included as a fourth operating mode.

Abstract: The invention is directed toward methods for operating a parallel hybrid vehicle in a manner that responds to the operator's demand for power output, while maximizing engine efficiency and minimizing disruptions in vehicle drivability. According to principles of the present invention, when the driver of a hybrid vehicle makes a demand for power output immediately after a braking event, the power provided to meet the initial demand is from either an ICE or a secondary power source. Which power source is used, and when it is engaged and disengaged, depends on various vehicle operating conditions. Also, the ICE is selectively turned off and on in response to various operating conditions.

Abstract: The present invention provides a control system for a redundant prime mover system to drive a machine having an engine coupled to the machine, and a motor/generator coupled to the machine and an electrical network connection. The controller operates the engine and the motor/generator in three or four operating modes. The first operating mode drives the machine with the engine. The second operating mode drives the machine with the motor/generator. The third operating mode drives the machine and the motor/generator with the engine such that the motor/generator generates electricity for delivery to the electrical network connection. Alternatively, the third operating mode drives the machine with both the engine and the motor/generator. This alternate operating mode can also be included as a fourth operating mode.

Abstract: A method for operating a wind power plant which is provided with a device for regulating the speed of a rotor of the wind power plant. The method includes the steps of: determining the critical frequency of the respective turbine and/or turbine components, determining the speed range of the rotor in which the entire turbine and/or individual turbine components are excited in the vicinity of their critical frequencies and operation of the wind turbine plant only below and above the critical range; the latter being traversed rapidly.

Abstract: An electronic engine-governor control is carried out using no arithmetic tables and thus relieving a load to the CPU. A throttle opening is controlled with a control quantity to suppress a difference between the actual revolutions and the target. Calculator 107A is provided for calculating the difference D between the current revolutions and the target Ne(tgt). The difference D is corrected with an adjustment A based on a difference between the current revolutions Ne(0) and the previous revolutions Ne(−1)and an adjustment B based on a difference between the previous revolutions Ne(−1) and the revolutions before previous revolutions Ne(−2). Calculator 107B is provided for calculating an adjustment E in relation to a load from the throttle opening &thgr;TH(0) and the target Ne(tgt). Calculator 107C is provided for calculating D/E, the throttle controlling signal P&thgr;TH.

Abstract: A system and method to provide an improved power electronics starting system (100) in which starting torque is delivered by a salient pole synchronous machine (102), while associated power electronics (110) and (118) utilization is maximized by adjusting the Park vector of the armature (102A) phase current to remain in-phase with the Park vector of the armature (102A) terminal voltage, regardless of the level of saturation of the pole synchronous machine (102).

Abstract: In an engine starter of the present invention, a driving shaft to output a rotating force and a crankshaft of an engine are linked continuously. The engine starter comprises a one-way clutch to prevent an overrun of an armature after the engine starts. In the one-way clutch, a connecting rotation number in which an inner ring and an outer ring change from a disconnected state to a connected state in a decreasing process of engine revolutions is set above a lower limit of the engine revolutions above which the engine under suspension of the fuel supply is able to get restarted by itself by resuming of fuel supply. Therefore, the engine is always able to get restarted quickly even in a low-rotation range.

Abstract: Frequency switching systems for changing the frequency of electrical power provided by portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a shipping container housing a gaseous fuel motor drivably connected to an electrical generator. The frequency switching system includes a turbocharger operatively connected to the motor and having interchangeable components that allow selecting a first or second turbocharger configuration. The selected turbocharger configuration determines the RPM of the motor, which in turn determines the frequency of the electrical power produced by the generator. In one embodiment, the first turbocharger configuration results in a motor speed of 1500 RPM and a frequency of 50 Hz, and the second turbocharger configuration results in a motor speed of 1800 RPM and a frequency of 60 Hz.

Abstract: Method and system for controlling a permanent magnet machine are provided. The method provides a sensor assembly for sensing rotor sector position relative to a plurality of angular sectors. The method further provides a sensor for sensing angular increments in rotor position. The method allows starting the machine in a brushless direct current mode of operation using a calculated initial rotor position based on an initial angular sector position information from the sensor assembly. Upon determining a transition from the initial angular sector to the next angular sector, the method allows switching to a sinusoidal mode of operation using rotor position based on rotor position information from the incremental sensor.

Abstract: A power electrical system is disclosed for a microturbine power generator. The invention permits the microturbine to be started using an external DC power source. The DC voltage is converted to a variable DC voltage by means of a bi-directional buck-boost circuit, DC bus and a DC-to-AC converter. The DC-to-AC converter produces at its output a fixed voltage pattern whose frequency is gradually increased in concert with the DC voltage, to accelerate the microturbine from standstill to startup speed. Once the microturbine is started, the excitation is discontinued, and the DC bus and DC-to-AC are used to produce output AC power at a voltage level and frequency to match an electrical load.

Abstract: Ethanol fuel is fed into hot burn chamber of twin turbine, initially to burn in the presence of compressed air. After turbine in hot burn chamber is started, water is electrolyzed by means of DC current produced by DC generator on turbine shaft, and resulting hydrogen and oxygen gases are pumped into hot burn chamber and are ignited by the burning ethanol fuel to produce products of combustion which continue to drive the turbine.

Abstract: A power electrical system is disclosed to connect a microturbine and an electrical machine to electrical power sources and a load. The invention permits the microturbine to be started using an external DC power source and/or an external AC power source. DC power is converted to AC power by means of a buck-boost chopper, DC bus and a DC-to-AC converter. AC power, from the AC power source, is converted to frequencies and voltages suitable to start a microturbine by a pair of DC-to-AC converters and the DC bus. The frequency and voltage levels of the AC power are gradually increased to accelerate the microturbine to startup speed. Once the microturbine is started, the external power sources are disconnected, and the DC bus and the DC-to-AC converters produce output AC power at a voltage level and frequency to match an electrical load.

Abstract: A control system for improving the fuel economy of a hybrid vehicle by evaluating a fuel to be consumed for a charging operation thereby to select a running mode. Specifically, a drive control system for a hybrid vehicle including an internal combustion engine, an electric motor and a battery device.

Abstract: The present invention is adapted to provide a method for dynamically determining optimal governor dynamics, i.e., gains, for a fuel control system supplying fuel to an engine. The method determines a mode of the engine, then determines the governor gain in response to the engine mode. The mode or condition of the engine includes a transmission mode, a throttle mode, and a cruise control mode. The governor gains are determined by determining the current engine mode, selecting the appropriate gain look-up table in response to the engine mode, and responsively selecting a gain value from the look-up table in response to at least one of the desired and actual speed. The gain maps are determined using empirical data and classical control system design methods, and storing the results in gain maps, or tables. The governor gain values are used in a forward and a feedback path PID control algorithm.

Abstract: The throttle of an engine in an engine driven generator system operating under an intermittently heavy load, as in supplying current to a welder, is controlled such that successive control signals sent to a throttle actuator for adjusting the engine throttle position are inhibited until at least a predetermined time has elapsed since the last preceding adjustment to the throttle. This procedure ensures that, as to each incremental adjustment to the throttle, the engine has sufficient time to respond, thereby preventing over-speeding or stalling the engine. The throttle actuator may be a stepper motor which is stepped by throttle position change signals from a processor which monitors engine speed and generator load to determine whether the throttle should be adjusted and, if so, in which direct. Alternatively, the throttle actuator may be a solenoid pulling against a spring in accordance with the average current through the solenoid coil.

Abstract: A vehicle powertrain comprises an internal combustion engine 10 and an electric motor 14 capable of producing driving or braking torque for the vehicle. The exhaust system for the engine 10 includes a catalytic converter 22. A control unit 18 monitors the temperature of the catalytic converter 22 using a sensor 32 and controls the driving or braking torque produced by the electric motor 14 so that the load on the engine produces exhaust gases of a suitable temperature to keep the catalytic converter within its optimum operating temperature range while maintaining the desired total output of torque from the powertrain.

Abstract: In an electrical power generation unit with a prime mover having an output shaft rotating at a speed .omega. which determines an output power function having at each value of .omega. an output-power/.omega. slope M.sub.d, and a generator developing electrical power responsive to shaft rotation, a generator electrical impedance is selected to provide a generator output-power/.omega. slope M.sub.g to approximate the M.sub.d slope, so that .omega. can be controlled to maximize efficiency.

Abstract: The throttle of an engine in an engine driven generator system operating subject to a wide and rapidly variable load, as in supplying current to a welder, is operated such that control signals are sent to a throttle actuator for adjusting the engine throttle position in response to load changes. The throttle actuator may be a solenoid pulling against a spring in accordance with the average current through the solenoid coil. In this embodiment, the processor causes pulse width modulated signals to be applied across the solenoid coil with throttle position changes being reflected in changes to the width of the pulses, such changes in the pulse width being delayed for at least the predetermined time since the last preceding adjustment to the throttle.

Abstract: A power output apparatus 110 includes a planetary gear 120 having a planetary carrier, a sun gear, and a ring gear, an engine 150 having a crankshaft 156 linked with the planetary carrier, a first motor MG1 attached to the sun gear, and a second motor MG2 attached to the ring gear. Part of the torque generated by the engine 150 is output to a power feed gear 128 via the ring gear, while the first motor MG1 receives the residual torque. The second motor MG2 outputs a torque having a greater magnitude than and an opposite direction to this torque, so as to rotate the ring gear reversely. The electric power consumed by the second motor MG2 is supplied by the electric power regenerated by the first motor MG1. This structure enables the power output from the engine 150 to be converted to a power of reverse direction and output to the ring gear.

Abstract: A secondary power system for an aircraft utilizes a variable frequency electrical distribution system that provides power to one or more loads that can tolerate distortion components. In addition, a DC distribution system is coupled to the variable frequency distribution system and is isolated from a fixed frequency electrical distribution. Distortion caused by rectification for the DC system is isolated from the fixed frequency system, thereby improving the power quality in the fixed frequency system.

Abstract: A method and apparatus for making a pretrip diagnosis and identification of generator set problems which could cause shutdown or undesired operation of the generator set.

Abstract: A power output apparatus 110 includes a planetary gear 120 having a planetary carrier, a sun gear, and a ring gear, an engine 150 having a crankshaft 156 linked with the planetary carrier, a first motor MG1 attached to the sun gear, and a second motor MG2 attached to the ring gear. When the driver steps on an accelerator pedal 164 to change the driving point of the engine 150, the power output apparatus 110 calculates an angular acceleration of the sun gear, calculates a torque used for changing the driving point of the engine 150 by multiplying the angular acceleration by a moment of inertia seen from the first motor MG1 of an inertial system consisting of the first motor MG1 and the engine 150, and drives the second motor MG2 by taking into account the torque. This structure enables a desired torque to be output even in a transient time.

Abstract: An electronic governor (34) to control a main steam valve (22) of a steam turbine (10) for controlling the rotational speed of a main drive shaft (16). The electronic governor (34) has a housing (36) in which an electric generator (104) is mounted to supply electrical energy to an electronic module (100) mounted on the housing (36). A hydraulic fluid pump (52) is mounted on the housing (36) and supplies fluid to a fluid operated piston (62) to effect a predetermined rotation of an output control shaft (32) and movement of main steam valve (22). Output signals from a microprocessor (116) to solenoid operated valves (96, 98) control the movement of fluid operated piston (62). Pump shaft (46) and generator shaft (48) are in axial alignment with and driven by the main drive shaft (16) to provide all of the power for operation of the electronic governor (34).

Abstract: A turbine, which is an essential portion of an air motor, is disposed midway along an air-intake passage communicating to combustion chambers of an engine. A generator is operably connected to an output shaft of the turbine. The generator has a function to control the rotational motion of the turbine in proportion to the magnitude of the generated electric energy, in addition to the original function of generating the electric energy. The generator is electrically connected to an air-intake control device. In other words, the air-intake control device includes a transistor, and potentiometer which includes a resistor and a sliding element. A positive electrode of generator is connected to an emitter of the transistor. Further, a base of the transistor is connected to an output terminal of the potentiometer, and a collector thereof to a battery. When the operation magnitude of an acceleration pedal is small, the current flowing through the base decreases.

Abstract: A method for controlling a generator associated with an internal combustion engine of a motor vehicle such that the generator is connected to provide electricity only under specific operating conditions. The method includes the following steps: (1) inputting engine consumption characteristic map values for various engine operating parameters to a logic module; (2) determining an operating point of the engine as defined by the operating map; (3) determining whether or not the operating point is less than or equal to a predetermined value; (4) connecting the generator to a load circuit associated with the motor vehicle if the operating point is at or falls below the predetermined value; and (5) disconnecting the generator from the load circuit if the operating point is greater than the predetermined value.

Abstract: A speed stabilization apparatus for use in a two shaft gas turbine is disclosed which includes a speed detector for detecting a rotational speed of a driving shaft of a turbine for driving a generator, a governer for controlling the amount of fuel supplied to a cumbustor, a plurality of delay circuits for providing load charging delay signals after predetermined time periods from when load charging commands are generated, and a forcible fuel supply control circuit. The governer usually controls the amount of fuel to the combustor in accordance with the detected speed signal from the detector so as to stabilize a rotational speed of the generator. When a load charging command is generated, the forcible fuel supply control circuit causes the governer controlling such that the full amount of fuel in supplied to the combustor. After the predetermined time duration from that, the corresponding charging load is connected to an output of the generator.

Abstract: An engine speed control apparatus controls the rotational speed of an engine when the engine is overloaded.