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Matches 351 - 400 out of 13,714

Document Document Title
WO/2011/094910A1
A braking method and a braking device used for a vertical shaft wind-driven generator are provided. The rotational speed of the vertical shaft wind-driven generator is monitored after the starting of the vertical shaft wind-driven genera...  
WO/2011/076827A2
The invention relates to an electrodynamic braking device for a universal motor, wherein a field winding is fed from a grid during a braking operation, and an armature is directly short-circuited, and a braking process is performed by me...  
WO/2011/072983A1
The present invention relates to a device and a method for storing recovered energy in a machine tool. Kinetic energy is first converted to electrical energy, the recovered energy is stored in an intermediate circuit or a combination of ...  
WO/2011/070651A1
The disclosed power conversion device is provided with: a power converter (2) that drives an induction machine (1); a control unit (40) that controls the power converter (2); and a braking power command computation unit (6) that computes...  
WO/2011/063851A1
The present invention relates to a softstarter (2) for starting and stopping an asynchronous motor (1) having three phases (L1, L2, L3), comprising two pairs (3A, 3C) of semiconductor devices of the type turning off at zero-crossing of t...  
WO/2011/057660A1
An apparatus for generating electromagnetic torque in an N-phase electric machine, N being a positive integer, comprises N lines, each of the N lines including an input terminal (A, B, C), an output terminal (a, b, c), and a pair of thyr...  
WO/2011/055585A1
Disclosed is an electric cylinder control method and an electric cylinder control system that can prevent a pressurizing load from exceeding a target load and that is controlled by a servo motor that can shorten pressurization time. A se...  
WO/2011/040636A1
Disclosed is a control device for a hoist, by which the life of the brake of a hoisting device can be easily determined. A time setting unit sets the time between the start of a double winding induction motor and the braking release of t...  
WO/2010/105903A3
The invention relates to an electrodynamic braking device and to a method for braking a universal motor having a field winding and an armature. The universal motor can be switched from a motor mode to a braking mode. In the motor mode, t...  
WO/2010/139844A1
The invention relates to a power supply system of a transport system, which comprises: a direct-current intermediate circuit (1); a motor bridge (2) connected to the direct-current intermediate circuit, for supplying power between the di...  
WO/2009/106223A3
The invention relates to a permanent-magnet-excited electric machine (1) operated without a sensor, in particular for a fuel cell unit of a motor vehicle, in particular an automobile, having a stator (2) comprising a stator winding (3) a...  
WO/2010/115865A1
The invention relates to a device (56) for coupling energy stores (66,68) to an intermediate voltage circuit (18) of a traction current converter, which comprises a feed circuit, an intermediate voltage circuit capacitor (26), and a load...  
WO/2009/127660A3
A drive circuit for a DC drive motor (1) of an actuator in a vehicle, in particular an actuator of a steering lock in which a gear component driven by the motor can move toward a mechanical end stop, comprising four circuit components (6...  
WO/2010/114520A1
An exemplary elevator machine includes a motor that operates in a first mode to move an elevator car and in a second mode to generate power. A line reactor is associated with the motor for delivering power generated by the motor operatin...  
WO/2010/108515A1
The invention relates to a method for operating a wind power plant on a load formed by an electrical supply grid (VN), wherein the electrical output power of the electrical generator (G) thereof driven by the wind-powered rotor thereof i...  
WO/2010/103693A1
Provided are a vibration motor with long life wherein vibration of the vibration motor can be converged instantaneously, and an electronics. Upon receiving an input signal from the operating section (5) of a touch panel, an electronics (...  
WO/2010/102720A1
The invention relates to a method for operating an underwater power station comprising a water turbine for absorbing kinetic energy from a water current; an electrical generator comprising converter feeding, wherein the generator rotor t...  
WO/2010/091799A1
Unit, comprising a first part and a second part arranged in a moveable manner relative to the first part, wherein the first part comprises a blade part extending in the movement direction, in particular an elongated blade part, wherein t...  
WO/2010/023127A3
The aim of the invention is to provide a device (15) for converting electrical energy into heat in the field of drive voltage technology and/or high voltage technology, said device comprising a brake resistance and at least one controlla...  
WO/2010/083999A1
The invention relates to a drive assembly for the motorized adjustment of an adjusting element (1) of a motor vehicle, wherein at least one drive (2) having an electrical drive motor (3), in particular a direct current motor, and a drive...  
WO/2010/081782A1
A voltage rectifier (1) for supplying power to direct-current electromagnetic brakes, particularly for application in electric motors, comprising a diode bridge (4) connected to the power supply (2), and means (7) for low-voltage power s...  
WO/2010/047944A3
A method ( 100) is provided for controlling torque of an electric motor (12) including the step (106) of supplying drive current to drive the electric motor. The speed of the electric motor is monitored (108) and from the monitored speed...  
WO/2010/050710A3
Disclosed are a method for controlling the motor of an electric screwdriver for medical use, and an apparatus using the same. The method of the present invention for controlling the motor of an electric screwdriver for medical use, where...  
WO/2010/075820A1
A control method for a power tool (2) and a power tool (2) implementing the control method. The power tool (2) includes an output shaft (9) for driving a working head (8) to rotate, a motor (6) for driving the output shaft (9) to rotate,...  
WO/2010/060361A1
A gear control system and gear control method thereof. The gear control system comprises a motor position detecting device (15) for detecting the position of the motor and sending the information of the motor position to a central proces...  
WO/2010/061050A1
The invention relates to an apparatus and a method for supervising the condition of a brake. According to the invention, in the method a brake control procedure is performed, and the movement of the armature part (4) of the brake that oc...  
WO/2010/060585A2
Disclosed is a converter for feeding a motor, comprising: - a control electronics module for generating control signals for controllable semiconductor switches, in particular power semiconductor switches; - phase modules which are each c...  
WO/2010/057605A1
The invention relates to a method for operating a drive and a drive, wherein the drive comprises at least one motor having a rotor shaft that can be loaded by a brake torque created by at least one brake comprising a powered brake coil, ...  
WO/2010/055074A1
The invention relates to an electric brake system for an electromechanical machine (M) connected to the output terminals of an inverter (3), the input terminals of which are supplied by a DC voltage source (1), the system comprising an e...  
WO/2010/050710A2
Disclosed are a method for controlling the motor of an electric screwdriver for medical use, and an apparatus using the same. The method of the present invention for controlling the motor of an electric screwdriver for medical use, where...  
WO/2010/047944A2
A method ( 100) is provided for controlling torque of an electric motor (12) including the step (106) of supplying drive current to drive the electric motor. The speed of the electric motor is monitored (108) and from the monitored speed...  
WO/2010/046062A2
The invention relates to an assembly having a brake resistor, wherein the brake resistor is connected in series to a fuse, and a trigger element comprises a switch with which the BR or a part of the BR can be short circuited.  
WO/2010/033101A1
An improved motor driver (40) is adapted to controllably supply a variable voltage to each of the terminals (12A, 12B, 12C) of the three-phase electric motor (13) for selectively causing the motor to move a load (18). The improved driver...  
WO/2010/026283A1
The object of the invention is a power supply arrangement of a conveying system and a method for controlling the power supply in a conveying system. The power supply arrangement of a conveying system comprises a controller (1) of the mov...  
WO/2010/023127A2
The aim of the invention is to provide a device (15) for converting electrical energy into heat in the field of drive voltage technology and/or high voltage technology, said device comprising a brake resistance and at least one controlla...  
WO/2010/016176A1
Provided are a compact and low-cost motor driver circuit capable of keeping the heat generated by a regenerative resistor within a specification temperature range and obtaining the proper brake time without adopting a large-capacity rege...  
WO/2008/155445A8
The power control of a transport system comprises an electric motor (2) for moving the transport appliance as well as a power supply appliance (3) of the motor, which comprises an intermediate circuit (4,5). The power supply appliance of...  
WO/2009/087501A3
This invention relates to an electrical regenerative brake (100) with a rotating brake coil (10) which is mounted on a' wheel (14) of a vehicle, whereby a magnetic field (18) is fed in the coil (10). In order to allow effective regenerat...  
WO/2009/150714A1
Provided is a regenerative switched reluctance motor driving system which allows a motor to have a small size, light weight, and high efficiency and which has the improved efficiency of energy collection at the time of regenerative braki...  
WO/2009/144782A1
A swing drive controller for driving and controlling a swing mechanism of a construction machine driven to swing by an electric motor. The swing drive controller includes a drive instruction generation part for generating a drive instruc...  
WO/2009/138291A1
The invention relates to a diesel-electric drive system, comprising a generator (4) having two multi-phase winding systems (22, 24), a diesel engine (2), and an intermediate voltage circuit converter (6), the two self-commuted pulse powe...  
WO/2009/127772A1
The invention relates to an arrangement and a method for braking an elevator car (1) in an elevator system without counterweight. The arrangement comprises a controllable brake (2, 2') and also a control (3, 19, 24) fitted in connection ...  
WO/2009/128308A1
Provided are a device for controlling a pulse jet type dust collector, in which a blower motor can cool itself even if dust-collecting target facilities repeat runs and stops, and a method for controlling the pulse jet type dust collecto...  
WO/2009/127660A2
A drive circuit for a DC drive motor (1) of an actuator in a vehicle, in particular an actuator of a steering lock in which a gear component driven by the motor can move toward a mechanical end stop, comprising four circuit components (6...  
WO/2009/118433A1
The invention relates to wind turbines provided with doubly fed induction generators and with at least one power converter which is novel in that, under certain circumstances, it enables the turbine to operate as a full converter (FC) sy...  
WO/2009/061220A9
Provided is a method of operating a motor at a low speed. The method includes sensing an event corresponding to an angular position of the motor. If the event occurs between a first time threshold and a second time threshold, the method ...  
WO/2009/110321A1
Provided is a motor control circuit for controlling the energization of a coil on the basis of the detection result of the position of a rotor. The motor control circuit performs controls to make a stop for a short time by suppressing co...  
WO/2009/105276A1
A system for braking a motor. The system includes at least one resistor and a contactor connected to the at least one resistor and a motor. The system further includes a variable frequency drive electrically connected to the motor, where...  
WO/2009/105586A1
According to some embodiments disclosed herein, an energy recovery system can be characterized as including a conduit having a first end and a second end, wherein the first end of the conduit is configured to receive a gas flow transmitt...  
WO/2009/030584A3
Method for slowing-down control of an asynchronous machine (101), wherein the value of a start energy (Estart) is determined and stored while the asynchronous machine (101) is being run up from being stationary to the operating rotation ...  

Matches 351 - 400 out of 13,714