Abstract: A power generation control device enables to conduct appropriate charge control and load limitations even if a technique (charge control technique) for restricting power generation by a generator in an accelerating state of a movable body is adopted in a movable body such as a vehicle in which a technique (load limiting technique) for imposing limitations on a power supply when a quantity of suppliable electricity decreased has been adopted. The power generation control device for controlling a generator for a movable body which stores electric power in a battery comprises a unit for restricting power generation by the generator based on a battery suppliable current which can be taken out of the battery, a quantity of electricity generated by the generator, an essential supply current consumed by an electric load to which electric power must be supplied and a load working current consumed by an electric load which does not necessarily require a power supply.

Abstract: A system and method for generating and harvesting energy in response to the flow of water through rotating device, such as a nutating or oscillating disk. Mechanical energy from flow of water is converted into electrical energy via an energy conversion unit. For example, the power generation system may be used to power electronic and mechanical devices used in automated meter reading (AMR) systems. The power generator system may recharge a storage circuit that enables long term AMR operations without the need for battery replacement. The power generation system, in various embodiments, can provide additional power for two-way communication and other sensors such as pressure, temperature, water quality and services such as remote shut-off, event-based messaging, and water quality monitoring.

Abstract: A method for the operation of a wind energy plant, with a synchronous generator and a superimposition gearbox, which is connected between rotor and generator, and the gear ratio of which is adjusted by a control unit, characterised in that a mode of operation is provided in which the generator is connected to the electric grid, and the generator shaft is uncoupled from the rotor shaft via the superimposition gearbox.

Abstract: The invention relates to a method and a system for regulation of the rotational speed (52) of a rotor on a wind energy unit with a generator and a rotor blade. The first set parameter is a pitch angle (Pitch) of the rotor blade and the second set parameter is the torque of the generator. The system comprises a pitch angle control or regulation device (32), a torque control or regulation device (33), a first device for determination of a first rotational speed set value (28) (first rotational speed set value determination device (29)) and a second device (26) for determination of a second rotational speed set value (29) (second rotational speed set value determination device (26)). The first rotational speed set value (28) may be supplied to the pitch angle control or regulation device (32) and the second rotational speed set value (29) may be supplied to the torque control or regulation device (33), wherein the first and second rotational speed set value (28, 2)) may be different from each other.

Abstract: Vehicles are connected to respective receptacles of houses and are capable of generating commercial AC power to supply the generated electric power to a power transmission line. The vehicles communicate with a management server via the houses and the power transmission line. The vehicles output to the management server such information items concerning the vehicles as vehicle ID, amount of generated electric power and remaining amount of fuel. When electric power shortage occurs, the management server generates a start command and a power generation command for the vehicles based on the information concerning the vehicles to output the generated commands to the vehicles.

Abstract: A system for converting electricity into pressurized air, and converting pressurized air into electricity. The system includes a pressurized air reservoir, two high pressure tanks, a pump and an electrical motor convertible into a hydro turbine and an electricity generator, a volume of water equal to a tank's volume, a set of controllable valves for connecting and disconnecting independently each tank, to the atmosphere, to the pump inlet and outlet, and to the air reservoir. In use, a volume of water in the first tank is pumped into the second tank, the air in the second tank is compressed and flows into the air reservoir. By changing position of the valves, the operation repeats with opposite roles of the tanks. In an electricity generating mode, the system operates by transferring pressurized air from the air reservoir into the first tank which is full of water, the pressurized water flowing through the hydro turbine generator thereby generating electricity.

Abstract: An apparatus and method for extending the power-capture region of a wind turbine during certain operating conditions is disclosed. The actual set point of an operational parameter is selected so as to be maintained at a predetermined number of standard deviations away from an operating limit during certain operating conditions. For example, the operational parameter may be a rotor/generator speed and the operating condition may be a mean wind speed that exceeds a predetermined wind speed.

Abstract: A wind turbine including a stator assembly having a plurality of stator blades for tangentially redirecting wind into a rotor assembly having a plurality of vertical rotor blades disposed circumferentially on a plurality of disks stacked one on top of each other. Each disk defines at least one opening thereon for redirecting the wind axially through each of the disks.

Abstract: An actuating drive for a rotor blade in a wind power installation is provided with an electric motor and a frequency converter which has a rectifier that is to be fed from a power supply system, a link connected to the rectifier, and a d.c.-to-a.c. inverter for feeding the motor, the link carrying a specified nominal operating voltage in a network-fed normal operation of the frequency converter. Furthermore, an auxiliary energy supply device is provided that is connected to the link. The auxiliary energy supply device includes and energy store which makes available a support voltage that amounts to less than 80% of the nominal operating voltage of the link. A diode is connected between the energy store and the link, and is arranged, with regard to its forward direction, in such a way that it feeds a support voltage from the energy store into the link if the link voltage falls below the support voltage.

Abstract: An electrical power generation system and method for generating electrical power are provided. The electrical power generation system utilizes a master controller for controlling operation of devices coupled to an AC electrical grid and DC electrical grid based on parameter values associated with a renewable power generator.

Abstract: An educational electrical generation kit includes a bicycle wheel support which may accommodate the driven wheel of a bicycle, and wherein a generator engages the driven bicycle wheel to generate electricity. The kit also includes a display board with various electrical output meters and/or electrical loads for monitoring and/or dissipating the electrical output from the bicycle. The kit is designed to be readily portable and easily set up and torn down, and to allow a spectator/participant to incorporate a bicycle of virtually any size into the bicycle wheel support to interactively generate electricity for use in the display board.

Abstract: A method for operating a wind energy system is provided comprising the steps of setting the value of an operational parameter of the wind energy system, measuring a yield parameter of the wind energy system and measuring a condition parameter. Further, the method comprises the step of calculating an optimized value of the operational parameter based on historical data and the outcome of the measurements. The method further comprises the step of resetting the operational parameter to the optimized value of the operational parameter wherein the resetting is such that the yield parameter is optimized. Further, a wind energy system is provided having a sensor unit for measuring a yield parameter of the wind energy system, a sensor for measuring a condition parameter, an actuator for adjustment of at least one adjustable part of the wind energy system, and a self-learning controller. The self-learning controller is connected to the sensor unit and the actuator and receives measurement data from the sensor unit.

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 permanent magnet generator voltage regulation system controls the output voltage of a permanent magnet generator. The output voltage of the permanent magnet generator is controlled by configuring the electrical connection of the stator coils. A monitoring device monitors the output voltage generated by the PMG, and a controller selectively configures the stator coil configuration based on the monitored output voltage. A switch array having a number of switches is connected to the stator coils, the switches being controlled by the controller to configure the electrical connection of the stator coils. For instance, to maximize output voltage generated by the PMG, the controller causes the switch array to connect the stator coils in series with one another. To reduce the output voltage, the controller causes the switch array to connect at least some of the stator coils in parallel with one another. In this way, the output voltage of the permanent magnet generator can be coarsely controlled.

Abstract: Torque auxiliary units 30 are disposed at opposed positions outside rotary traces of the rotating permanent magnets 18 provided for the flywheel 11, in which permanent magnets 31 are arranged so as to be the same polarities as those of rotating permanent magnets 18 by being moved by cams 28 attached to a flywheel 11.

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: A method for the operation of a wind turbine generator system adapted to be switched into the mains, including a variable-speed rotor, a torque governor, and a governor for the angle of blade attack, characterized in that the speed of the rotor is regulated by varying the angle of attack before the wind turbine generator system is switched into the mains.

Abstract: An improved ocean energy converter having a semi-submerged device designed to harvest energy from the ocean. Each device is connected to others to form long lines forming an interconnected array of ocean energy devices that are anchored at right angles to the prevailing ocean waves. The front and back sections of each energy module have internal ballast. Each device has a submerged inverse curved wing sections attached to floating stabilizer tubes. The trailing edge of the wings has several struts attached which support propellers that drive internal air compressors. The air compressors are connected together and connected to the other air compressors in the array of devices and those in turn are connected to a high pressure line leading underwater to an onshore air turbine electric generator connected to the local power grid.

Abstract: An integrated circuit for controlling an alternator circuit in an alternator regulator charging system. The integrated circuit includes a first circuit for performing core regulation functions; a second circuit having a mask selectable operation circuit that allows the integrated circuit to select an operational mode thereof, the mode being selectable from one of a stand-alone mode, a remote controlled mode wherein the first circuit is controlled by an external circuit, and a combination of the stand-alone mode and the remote controlled mode; and a third circuit having an output driver circuit for controlling a field winding of the alternator circuit.

Abstract: In a device for detecting errors in a charging line, the device detects an error in the charging line connecting the vehicle generator and an on-board battery. The device includes a bias circuit, a charging line error detecting means, and a warning means. The bias circuit biases a voltage of an external terminal receiving the power generation instruction signal in the vehicle power generation controller with a voltage of an output terminal of the vehicle generator. The charging line error detecting means detects the error in the charging line based on a voltage of an output terminal of the power generation instructing means that is provided within the external controller and generates the power generation instruction signal and a terminal voltage of the on-board battery. When the charging line error detecting means detects the error in the charging line, the warning means performs a warning operation to give notification of the error.