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WO/2013/008275A1 |
An object of the present invention is to provide a transverse flux machine apparatus having a simple power converter with a high efficiency for driving a switched reluctance motor (SRM). Another object of the invention is to provide a tr...
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WO/2013/004311A1 |
In an electronic commutation method in direct current electric motors which are controlled by pulse width modulation of the energization which takes place periodically with positive and negative current values and intermediate energizati...
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WO/2012/176553A1 |
The purpose of the present invention is to obtain a motor control device for controlling a motor having a plurality of phases and for, when an open-state failure occurs at a target phase, quickly and accurately detecting at which of the ...
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WO/2012/172237A1 |
Method of controlling an electric motor furnished with a rotor and a stator, sensors for measuring currents flowing in the rotor and in the stator, means for determining setpoints of current and means for processing the signals from the ...
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WO/2012/163433A2 |
The invention relates to an apparatus for an asynchronous motor (13) and to a method for controlling a star contactor (8) and a delta contactor (7) of an asynchronous motor (13). In order to operate the asynchronous motor (13) over a wid...
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WO/2012/150930A1 |
In a method of controlling current in a control circuit of an electric motor, pulse-width modulation (PWM) pulses are applied to a stator of the electric motor, via a plurality of transistors of the control circuit, using a first control...
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WO/2012/146157A1 |
A speed-adjustable synchronous generator unit, including a synchronous generator (1) and a control system (2). The synchronous generator (1) includes a rotor (11) and a stator (12), wherein a stator coil is connected to an external power...
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WO/2012/142082A1 |
A system receives power from a power grid, has a variable frequency AC drive has an output connected to an AC motor, and an input connected to the grid. The motor is connected with a load, and the drive includes an active converter havin...
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WO/2012/135965A2 |
An actuator (1') for driving a regulating element (30) for controlling a fluid flow in a flow channel (29) includes an electric motor (4) for driving the regulating element (30) and a control unit (2) for controlling a current provided t...
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WO/2012/130871A1 |
In a first aspect, the present invention provides a blade pitch system (100) for a wind turbine, comprising at least one multi winding (102, 103) motor (101) comprising a main independent set of control windings (102) and at least one au...
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WO/2012/129965A1 |
An electric excitation permanent magnet switch, an electric excitation permanent magnet switch reluctance motor and an excitation method. The two magnetic poles of a permanent magnet (12) of a permanent magnet switch and the two ends of ...
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WO/2012/127687A1 |
A linear motor drive device for driving a linear motor, comprising: a fixed section provided with a magnet row composed of a plurality of rectilinearly arranged permanent magnets and two rails arranged on both sides of the magnet row and...
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WO/2012/123847A2 |
A separately excited synchronous machine (1b1k) with an excitation circuit on the side of the rotor includes an excitation winding (3) and a power supply for the excitation winding (3) as well as a switching element (8a, 8e) for connecti...
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WO/2012/119670A1 |
The invention relates to an electric drive (70), in particular for an electric tool, having a rotor, a stator and a first coil assembly, which is designed to drive the rotor by means of a first rotating field, and having a first motor co...
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WO/2012/119795A2 |
The invention relates to a control unit (10) for controlling an electric machine, having a first and a second voltage connection (16, 18) for connecting the control unit (10) to a voltage source (20), a first control arrangement (12) whi...
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WO/2012/121902A1 |
A device for improving efficiency of an induction motor that soft-starts the motor by applying a voltage to the motor that is substantially less than the rated voltage then gradually increasing the voltage while monitoring changes in cur...
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WO/2012/114770A1 |
A movement control device is provided with: an actuator (1) that causes the reciprocal movement of a driven body (9) connected to a drive coil (12); a signal generation unit (8) that generates a speed command signal indicating a target s...
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WO/2012/110879A2 |
A stator (12) has multi-phase stator coils (28u, 28v and 28w) that are wound around a stator core (26) by concentrated winding. A rotor (14) has rotor coils (42n and 42s) that are wound at multiple portions of a rotor core (16) in the ci...
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WO/2012/107665A2 |
In a method of controlling a reluctance polyphase electric machine (36), in particular an automobile motor, the currents injected into each coil of the stator of the machine (36) are deduced by a transformation of a pair (Id, Iq) of exci...
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WO/2012/099183A1 |
An amplitude control unit (40) detects the amplitude of a movable element (12) that reciprocates relative to a stator (11), detects fluctuations in a load over time according to detected fluctuations over time in the amplitude, and detec...
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WO/2012/090781A1 |
A motor control apparatus (1) comprising: a command generator (11) for generating an acceleration pattern that chronologically shows acceleration command values used when making a target object (34) move to an intended position using a m...
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WO/2012/086852A1 |
An electric power tool comprising: a motor including, a rotor, a stator including a plurality of teeth, and a coil wound on the teeth; a front-end tool configured to be driven by an output of the motor; a driving circuit configured to su...
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WO/2012/081493A1 |
The objective of the present invention is to generate a two-phase modulation pulse so as to excite a stable three-phase alternating current even when the switching of an inverter (2) is controlled by means of two-phase modulation. A two-...
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WO/2012/080813A1 |
The present invention relates to an optimized braking method of a single-phase electric motor, as well as to a single-phase electric motor implementing such method. The method for braking a single-phase electric motor (10) comprising a r...
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WO/2012/077752A1 |
A control device is implemented that appropriately takes into account the influence of switching noise on the detected angle of a resolver. Said control device has: a correction information storage unit (25) that stores, as correction in...
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WO/2012/066800A1 |
An electric current detection device for reducing the detection error included in a detected electric current in order to detect the output electric current of a PWM inverter, the device characterized in comprising electric current detec...
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WO/2012/066939A1 |
The purpose of the present invention is to provide a power control device that can supply a suitable amount of power to an electric motor. This power control device chronologically estimates the torque generated in an electric motor, and...
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WO/2012/063401A1 |
This brushless DC motor (1) is provided with a stator (3) having a main body (312, 322) disposed on both ends thereof in the rotational axis direction with a single exciting coil (2) disposed between the main bodies (312, 322), and with ...
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WO/2012/056844A1 |
Provided is a linear motor control apparatus, wherein a vector control type current controlling means (13) is equipped therein. Also equipped is an induced voltage compensating means (31) for adding a voltage compensation value, obtained...
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WO/2012/056843A1 |
Provided is a device for controlling a distributed linear motor (1) in which a plurality of individual motors (3) each capable of functioning as an armature on a primary side of an independent linear motor are arranged at intervals in th...
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WO/2012/056842A1 |
A distributed linear motor (1) comprises a plurality of individual motors (3) which are each capable of functioning as an armature on a primary side of an independent linear motor and are arranged at intervals along the movement path of ...
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WO/2012/053405A1 |
A control device (10) comprising: a position command correction unit (12) for calculating the amount of change in a position command value from a position command value inputted at regular intervals from an external unit, and calculating...
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WO/2012/053027A1 |
An object of the invention is to provide a boost DC-to-DC converter capable of changing a voltage ratio between an input voltage and an output voltage smoothly in a wide range. Two pairs of one reactor and one battery is connected by a p...
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WO/2012/050362A2 |
The present invention relates to a method for actuating a vibration motor, and more particularly, to a method for expressing various vibration patterns of a vibration motor by using only an initial vibration frequency, change in vibratio...
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WO/2012/050361A2 |
The present invention relates to a method for actuating a vibration motor, and more particularly, to a method for saving various formats of vibration pattern data of a vibration motor by using only an initial vibration frequency, change ...
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WO/2012/043448A1 |
A control apparatus (10) is provided with: a position detection unit (108) for detecting the position of a mover of a linear motor (20) on the basis of changes in the output signal from a magnetic sensor (27); a position control unit (10...
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WO/2012/042351A1 |
An electric motor has a stator and a rotor that are used in common between two systems. An ECU (control means) controls the motor torque by supplying drive electric power to the motor coils independently of each other. When the ECU deter...
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WO/2012/042293A1 |
This method is for controlling an electrical motor, comprising a magnetic rotor comprising at least a couple of magnetic poles, and a stator comprising at least three coils rolled around teeth, said coils being fed in electrical current....
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WO/2012/035758A1 |
This device is capable of supporting the weight of a jig or tool and an endplate by means of a simple configuration, suppresses heat release resulting from a drive current, and secures driving power when performing work. The device is pr...
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WO/2012/023121A2 |
An electrical appliance with a resonant motor (10) for driving a vibratory component is provided that has a control unit for driving the resonant motor (10) with a predetermined driving frequency and for measuring at a predetermined time...
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WO/2012/023120A2 |
The present disclosure proposes a resonant motor unit that has a resonant motor, a control unit for driving the resonant motor at a driving frequency, for short-circuiting the resonant motor during at least a first short-circuiting phase...
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WO/2012/006701A1 |
The present invention relates to a control method and system for a resonant linear compressor, which are especially applied for controlling the capacity of a cooling system. Such a method comprises essentially the following steps: a) rea...
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WO/2012/000507A1 |
Parameters of PM machines, especially for IPM machine, are known to vary by significant amounts. This affects the controllability of such machines, which may lead to reduced power loading capability and increased losses. The present inve...
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WO/2012/002544A2 |
In order to provide a new linear actuator device that corrects the offset shift caused by the weight of a needle, while conserving power and not increasing the size of the device, a linear actuator device (1) is equipped with: an electro...
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WO/2011/161811A1 |
A motor drive apparatus drives motor generators (MG1, MG2) using power from a DC power supply (20). The motor generators (MG1, MG2) make rotors with permanent magnets installed thereon rotate, using current magnetic-fields generated by m...
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WO/2011/158732A1 |
A control device for controlling a linear motor selects either constant speed control for moving a movable element at a constant speed, or acceleration control for accelerating the speed of the movable element, on the basis of a position...
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WO/2011/155013A1 |
The disclosed control device uses PWM to control an inverter that controls the output of a motor. Said control device computes a reference frequency (fs) on the basis of the torque and rotational velocity of the motor, uses two data tabl...
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WO/2011/148457A1 |
A rotating electrical-machine control system (10) is provided with: a rotating electrical machine (20) comprising a rotor (26) further comprising permanent magnets (30, 31) that are divided into a dividing-number (n) of sections; an inve...
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WO/2011/148852A1 |
A motor control device is provided with: a command speed calculation means (101) for outputting a command speed (ωr) from the external input basic speed (ωb) and the proportional gain (α); a norm speed formation means (108) for calcul...
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WO/2011/145366A1 |
A motor control device configured so that an object to be driven is stably controlled in order to cause the object to approach and make contact, with low impact, with an object to be pressed, so that the vibration occurring when the obje...
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