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WO/2012/042788A1 |
This motor control device has a dynamic brake function of absorbing the energy of a motor to apply a brake to the motor. The motor control device comprises: a dynamic brake resistor; a thermal switch which is arranged adjacent to the dyn...
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WO/2012/028642A1 |
An assembly comprising a movable element being movable in relation to a base, a first electric motor for moving the element in relation to the base, the motor having one or more first windings each having at least two inputs, a first bra...
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WO/2012/024251A2 |
A drive system (100, 100a-c) for an electric drive machine (102, 102a-c) having an engine (104, 104a-c), a generator (106, 106a-c), a motor (108, 108a-c), final drive wheels (110, 110a-c) and auxiliary devices (116, 116a-c) is provided. ...
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WO/2012/023267A1 |
The present invention makes effective use of regenerative electric power that is generated when a tabletop movement motor decelerates. A tabletop movement unit (10) comprises: a tabletop movement motor for moving a tabletop on which a su...
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WO/2011/162328A1 |
Disclosed is a motor braking apparatus provided with: a voltage detection unit (15) for detecting inter-terminal voltages between terminals (2a) of a motor (2); a frequency/voltage conversion unit (16) for converting the frequencies of t...
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WO/2011/144634A2 |
The invention relates to a method for moving an element, which is driven by an electric motor inside a predetermined movement section between two block positions each formed as a limit stop, into a block position, characterized in that, ...
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WO/2011/129705A1 |
Lifting device, such as a winch, crane or similar, especially in connection with maritime applications, which lifting device includes one or more electrical motors (11) for powering a drum (12) with lifting wire, which motor(s) are exter...
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WO/2011/076827A9 |
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...
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WO/2011/105676A1 |
The present invention relates to an apparatus and method for controlling the speed of a wound-rotor induction motor. Specifically, a wound-rotor induction motor according to one embodiment of the present invention comprises: a rectifying...
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WO/2011/101915A1 |
Disclosed is a command generation device capable of switching the averaging time of a moving average filter to any value without producing errors in the movement distance. The command generation device comprises: a speed command generati...
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WO/2011/095005A1 |
An automatic safe brake apparatus for a wind driven generator. The generator comprises a stator (2), a stator shaft (3) and a rotor (1). An electromagnetic clutch (9) is mounted on one end of the stator shaft. The electromagnetic clutch ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 (...
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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...
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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...
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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...
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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...
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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,...
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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...
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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...
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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...
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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, ...
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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 ...
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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...
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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...
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