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WO/2010/137133A1 |
Provided is a device for estimating a magnetic pole position in a synchronous motor capable of estimating an initial magnetic pole position of a rotor with high precision even when the power supply voltage is unstable. The device for est...
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WO/2010/126923A2 |
Provided is a method of indirect position estimation in three-phase switched reluctance machines. The method may comprise providing a three-phase switched reluctance machine. A three-phase switched reluctance machine may comprise a rotor...
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WO/2010/126422A1 |
A vacuum cleaner and a method for controlling the motor power of a vacuum cleaner are disclosed. The vacuum cleaner comprises an electric motor and an electric power supply for providing electric power to the electric motor. Furthermore,...
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WO/2010/119483A1 |
Provided is an AC motor in a three-phase unbalanced state such as a claw-teeth type AC motor (108), which is reduced in magnetic flux pulsations and torque pulsations. Among the current command values of individual phases to be intrinsic...
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WO/2010/118905A2 |
The present invention relates to an apparatus for injecting current comprising: (a) At least one motor (1 ) capable of generating mechanical work, Em, said motor being coupled to; (b) at least one torque driven servo permanent magnet gen...
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WO/2010/116769A1 |
A rotating electric machine control device comprises a power converter (2) for driving a rotating electric machine (1), a DC voltage detection means (5) for detecting a DC voltage applied to the power converter (2), and a control unit (3...
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WO2010109522A1 |
A control means (5), which outputs a drive control voltage command to a rotary electric machine (1), is equipped with a drive voltage command operational part (6) that computes a drive control voltage command for driving the rotary elect...
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WO2010109528A1 |
The objective is to obtain an alternating-current rotary machine controller that is capable of achieving smooth driving from a low-speed area, including zero speed, to a high-speed area while attaining a desired characteristic, even in t...
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WO/2010/110483A2 |
An electric motor system including: a rotor (9); a stator (8); the rotor and the stator being mounted for movement relative to one another; the rotor having multiple magnetic poles (11); the stator having multiple salient poles (12) faci...
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WO/2010/107982A1 |
The present disclosure generally relates to systems and devices for spraying fluid materials such as paints, stains, and the like, and more specifically, but not by limitation, to a dual voltage electromagnet motor for an airless fluid s...
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WO/2010/103565A1 |
Provided is an AC motor drive device which can drive an AC motor (5) by using a simple current detection circuit with a high accuracy, a high response, a high efficiency, and a low noise. The drive device includes a current detection mea...
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WO/2010/102364A1 |
The present invention relates to a control system for a single-phase induction motor comprising at least one electronic control circuit (6), at least one main switch (3), at least one auxiliary switch (4), at least one voltage conditione...
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WO/2010/103627A1 |
Provided is a controller of an AC rotating machine, which has a current limit function for protecting an AC rotating machine and a drive such as an inverter from overcurrent, wherein the current limit function is exhibited reliably even ...
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WO/2010/104059A1 |
A 3-phase motor control device (4) for controlling a driver for driving a 3-phase motor comprises: a target rotation angle generation unit (5) for generating a target rotation angle; an angle detector (2) for detecting a detection rotati...
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WO/2010/095585A1 |
Provided is a rotation control device for work machinery that is intended to provide control to match the operator's sense of operation. When the speed of an electric motor is almost zero in a speed control mode wherein an electric motor...
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WO/2010/087224A1 |
Provided is a valve control device for a valve mechanism having return torque applied thereto, wherein the valve control device accelerates the response of a valve driven by a brushless DC motor equipped with a positional detection senso...
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WO/2010/082368A1 |
An AC motor (M1), an inverter (14), and a control apparatus (30) are installed in an electric vehicle. The control apparatus (30) includes a voltage difference computing section (320), a modulation factor computing section (340), and a m...
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WO/2010/074112A1 |
Disclosed is a linear motor formed by being provided with: an outside permanent magnet row (11) formed by placing arc-shaped permanent magnets side-by-side such that the magnetic poles thereof are rotated a maximum of 90 degrees at a tim...
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WO/2010/073073A1 |
A control system for an AC motor determines a slope KtI of a tangent TL at an operating point Pa corresponding to the current motor operating state and voltage phase (ΘO) on a torque characteristic curve (500) that is plotted according ...
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WO/2010/070723A1 |
A second control unit (100) includes a current command generating section (10) for generating the current command of a motor (6) on the basis of a torque command (T*), a voltage swing parameter calculating section (150) for calculating a...
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WO/2010/071779A1 |
Motor system in a hybrid electric vehicle, wherein the motor comprises a plurality of stators driving one rotor shaft. A binary controller activates the corresponding stator windings depending on the motor load, in order to achieve maxim...
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WO/2010/068709A2 |
In one aspect the invention relates to an electrical circuit for use with a generator having an output port, the circuit to modify one of an electric current or voltage from the generator. The circuit includes a rectifier to convert the ...
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WO/2010/067021A2 |
The invention relates to a device having a polyphase electrical machine, wherein a plurality of inverters (36, 37, 38), which are controlled by an interlaced control modulated by pulse width to an identical cutoff frequency, provide, on ...
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WO/2010/066270A1 |
The invention relates to an electrical power tool, particularly an electric hand power tool, for operating with alternating current, having an electric motor (2), and electronic control device (6), and an electrical power switch (4) for ...
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WO/2010/067837A1 |
A thrust generation mechanism comprising magnetic pole teeth which are arranged so as to sandwich and hold permanent magnets disposed on movers, cores which serially connect the magnetic pole teeth which sandwich and hold the magnets, ar...
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WO/2010/061618A1 |
Disclosed is an energy converter that is comprised of a new, thermodynamic property rotor and that converts electricity to power and heat, improving energy transmission performance. This energy converter is equipped with: a magnetism gen...
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WO/2010/055322A2 |
The invention is concerned with a device and a method for controlling an inverter associated with a power source, which typically will be a distributed power source. The role of an inverter is to modulate the electrical power output, e.g...
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WO/2010/054940A2 |
Synchronous motors are controlled using a three-phase AC power controller. According to the invention, a fundamental wave having the desired frequency is defined for the first phase, and corresponding fundamental waves which have the sam...
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WO/2010/047221A1 |
When instructed to switch control modes between overmodulation PWM control and sine wave PWM control, a control device (30), based on the state of the power conversion activity by means of an inverter (14), corrects the amplitude of a vo...
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WO/2010/042561A2 |
The disclosed vacuum assembly can be mounted in a vehicle. The motor/fan assembly is positioned above a chassis wall. Lateral flanges on opposed sides of the tank support the tank in generally horizontal sliding motion from a forward pos...
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WO/2010/042188A1 |
Disclosed is a system and method for controlling current in a switched reluctance motor by changing a dwell state including starting the motor in a normal mode, measuring current in the motor, comparing the measured current to a first th...
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WO/2010/034821A2 |
A method for providing dynamic load sharing between a first and a second three phase system is disclosed, wherein the first and second three phase system are connected to a first and second three phase interleaved winding in a generator....
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WO/2010/024234A1 |
Provided are linear motors suitable for the dispersed arrangement of stators. The linear motors (1A) are ones wherein stators (10A) and needles (20A) move relative to each other. The stators (10A) and the needles (20A) each comprise mult...
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WO/2010/024190A1 |
The objective is to move a movable element smoothly with sensorless vector control in a constant-speed region without the use of a position sensor while enabling stopping control and control in a low-velocity region. When the moving velo...
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WO/2010/020389A2 |
The invention relates to a device (1) for generating electric energy from mechanical excitation oscillation, comprising a mechanical resonator (2) that has at least one resonance element and a support (5) to which the excitation oscillat...
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WO/2010/021168A1 |
Provided is a linear motor which is compact even if the stroke is long, can reduce heat generation and can eliminate braking force resulting from a circulation current. A plurality of armatures (A1-An) are arranged in one row in the movi...
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WO/2010/013226A2 |
The invention consists in a polyphase motor and operating system thereof that allows obtaining an arbitrary relation of the number of magnetic poles without mechanical commutations within the stator. The number of slots of the latter is ...
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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/2009/150794A1 |
Disclosed is a motor drive circuit in which an SPM driver drives a spindle motor (110). A VCM driver drives a VCM (120). A DC/DC converter (switching regulator) (16) receives power source voltage from outside and generates a stabilised v...
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WO/2009/128287A1 |
Provided is an electric motor which achieves reductions in size and manufacturing cost and an increase in design flexibility. An electric motor (1) is provided with a first structure (4) provided with a magnetic pole row which is compose...
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WO/2009/122954A1 |
Even if an actuator is used with thrust control, an excellent thrust characteristic can be obtained for the stroke of the actuator. In order to achieve this aim, a linear motor type of electrically-powered actuator (AC) having a linear m...
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WO/2009/118135A1 |
The method is used to start up a multiphase electric motor operating in star-connected mode. The method provides for conductive bridging of at least one coil portion of one phase of the motor and electrical separation of the bridged coi...
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WO/2009/119648A1 |
A linear motor unit is provided with a plurality of linear motors each of which has a stator, a movable element which linearly reciprocates along the stator, and a magnetic sensor which can detect the position of the movable element. The...
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WO/2009/119810A1 |
Provided is a technique to suppress hunting in a range of a minimum resolution of a pulse encoder when a servo motor has reached a target position and stopped, thereby maintaining a stable stop state. A servo motor position control devic...
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WO/2009/118299A2 |
The invention relates to a circuit arrangement (10) for operating a universal motor (11) which is designed to drive a drum of a domestic device for treating items of laundry, said universal motor (11) comprising a stator with at least on...
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WO/2009/115330A1 |
A method of controlling a brushless AC motor (3), wherein two power lines (7) supply a direct voltage and direct current (Vdc) (Idc) to a power circuit (8) which supplies the motor (3) with three stator currents (Ia, Ib, Ic), the method ...
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WO/2009/116453A1 |
Provided is a camera system capable of reducing the resonant oscillation of an actuator such as a voice coil motor by a simple configuration and in a short time to thereby speed up AF control using the actuator and reduce the size of the...
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WO/2009/113509A1 |
Provided is an inverter device which can realize accurate sensorless vector control without increasing the shunt resistance in the 2-shunt method. The inverter device comprises a main inverter circuit which wires the three arms formed by...
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WO/2006/006810A9 |
The present invention discloses a power variable-type motor driving circuit (10) and driving method which can stably drive a motor (13) by removing a rectifier capacitor causing an inrush current and correcting a PWM signal by a voltage ...
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WO/2009/091319A1 |
The present invention relates to a device for controlling the speed of an electric motor, wherein the said motor is arranged to be connected to a voltage source, wherein the said motor comprises a stator winding and a rotor winding, wher...
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