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WO/2010/150786A1 |
Provided is a control device for an electric motor drive unit that is capable of altering system voltage while suppressing the vibrations of an AC motor even during the square wave control, and that is capable of expanding the region use...
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WO/2010/144308A2 |
A system and method for controlling an AC motor drive includes a control system programmed with an energy algorithm configured to optimize operation of the motor drive. Specifically, the control system input an initial voltage-frequency ...
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WO/2010/137096A1 |
Provided is a washing machine characterized by being configured to be provided with a permanent magnet which has coercive force at a level capable of easily changing the magnetization quantity, on the rotor side, and being provided with ...
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WO/2010/137708A1 |
Provided is an inverter control device that can detect momentary abnormality in a power-supply voltage for sure, and return quickly to regular state when the abnormality in the power-supply voltage has been settled. The inverter control ...
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WO/2010/137416A1 |
Provided is a control device for a motor-driving device that can decide upon a system-voltage command-value, quickly and appropriately, according to the actual voltage supplied to the motor; increase the efficiency of the motor-driving d...
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WO/2010/130989A1 |
The present invention relates to an apparatus and method for determining the speed of a motor, generator or alternator, more particularly for determining the speed of an alternating current (AC) induction motor. The invention overcomes p...
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WO/2010/125637A1 |
Disclosed is a power conversion device comprised of a power converter (2) which converts DC voltage to AC voltage and applies the voltage to an AC rotator (1), and a controller (60) which controls the power converter (2) based on operati...
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WO/2010/126215A1 |
The present invention provides a method for controlling a cable winder through the control of speed and torque by detecting the speed and the torque of an AC induction motor using an encoder and a current detecting sensor and comparing t...
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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/2010/116787A1 |
Disclosed is an electric motor control device with a simple structure which can satisfactorily suppress torque ripples in response to the rotational state of an electric motor. The device is provided with a sign determination unit (1), w...
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WO/2010/116815A1 |
In order to provide in particular an AC motor control device that will enable an easy setting-up of the quantity of state of an AC motor, which changes nonlinearly according to the driven state of the motor, and which will enable the use...
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WO/2010/112258A2 |
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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/2010/103565A1 |
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/2010/103627A1 |
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/2010/104008A1 |
Disclosed is a current source inverter device which controls the power factor in an arbitrarily configurable manner without a magnetic pole position detector. The device is provided with a current source inverter; a motor supplied with a...
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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/2010/099989A1 |
The present invention relates to a device and to a method for determining position information of the rotor shaft of an electric machine on the basis of at least one input signal received by the electric machine, wherein the received inp...
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WO/2010/100989A1 |
A controller of an electric motor consisting of a rotor having permanent magnets, and a stator which rotates the rotor by generating a rotating magnetic field with applied voltage is provided with a rectangular wave inverter which drives...
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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/2010/092238A1 |
The invention concerns a pump monitoring arrangement comprising means for receiving measurement data comprising at least a frequency component from a sensor into the memory of a computer device. The invention is characterized in that the...
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WO/2010/092759A1 |
Provided are a motor control device and an electric power steering device, which can prevent the occurrence of voltage saturation by simple configurations. A current limit value calculator calculates the current limit basic value having ...
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WO/2010/047473A9 |
The object of the present invention is to provide an apparatus for controlling a vibration motor to operate continuously in the maximum resonance point by estimating a resonance point despite changes in the various environmental conditio...
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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/2010/082553A1 |
Disclosed are an output filter (104), which is configured with a neutral point sensor (103), the size of which has been reduced and which equalizes the winding inductances of all the phases so that a common mode inductance is not generat...
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WO/2010/072782A1 |
The present invention relates to a system for controlling a direct current motor (M) with straight recesses including a position sensor (CP) for measuring the angular position (θ) of the motor (M), and a current sensor (CC) for measurin...
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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/2010/060671A2 |
The invention relates to a method for controlling an electric motor (M), especially in a fan, by means of a control variable (PWM). Said method comprises the following steps: a manipulated variable (TV) having a time curve ((ΔTV/Δt)Sol...
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WO/2010/055168A2 |
The present invention relates to control of electrical machines and in particular, though not exclusively, to control of synchronous machines such as hybrid stepping motors, flux switching machines and brushless permanent magnet motors a...
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WO/2010/050020A1 |
A control device for a permanent magnet synchronization electric motor can be obtained, capable of performing a high-accuracy torque control without increasing load on a CPU product, regardless of whether the permanent magnet synchroniza...
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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/2010/047221A1 |
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/2010/029879A1 |
Provided is an electric power steering device capable of performing, using a synchronous reluctance motor having nonlinear current-torque characteristics, a torque control by simple arithmetic processing. The electric power steering devi...
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WO/2010/026699A1 |
A control means (7) uses rotation information relating to a synchronizer (5) detected by a rotation information detection means (6) so as to perform control as follows. When shifting to the inertia operation, boosting is performed by a ...
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WO/2010/024195A1 |
Provided is a device and method that can suppress disturbances of complex electric motor systems and are capable of stable control wherein periodic torque pulsations, etc. are suppressed. A controller (5) that converts a torque command v...
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WO/2010/024194A1 |
Provided is a device for stable control that prevents overcompensation, vibrational instability and interference due to torque pulsation compensation signals, etc. while making the learning of pulsation compensation signals reliable and ...
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WO/2010/022245A2 |
A system and method for monitoring the power damping compliance of a power generation unit comprises a measurement unit that is configured to be coupled to a power generation unit to identify the voltage, current, and frequency values as...
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WO/2010/021353A1 |
A current instruction value calculation unit (22) includes a q-axis current instruction value correction calculation unit (31) and a predicted voltage use ratio calculation unit (32). The predicted voltage use ratio calculation unit (32...
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WO/2010/015112A1 |
A system for driving asynchronously multiple motors by one inverter (6) and for realizing frequency variation and speed adjusting of rotors includes a motor set (1), a rectifier set (2), a chopper set (3), an isolator set (4), a current ...
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WO/2010/016352A1 |
When PWM control is carried out in an over-modulation mode, an ECU variably sets a switching determination value used to determine control mode switching from the over-modulation mode to a sine wave modulation mode according to the curre...
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WO/2010/013344A1 |
A harmonic current is suppressed inexpensively to improve a power factor and to miniaturize a reactor. An AC-DC converter has a rectifier (2) connected with an AC power supply through the reactor (5), a plurality of capacitors (6, 7) con...
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WO/2010/009984A1 |
The invention relates to a method for determining the rotor temperature of a permanently excited synchronous machine (10), wherein a first estimated value (TR1) for the rotor temperature is determined as a function of a residual magnetis...
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WO/2010/004971A1 |
Provided is a motor drive device (10) for driving and controlling a motor (M). The motor (M) has one electrode to which a DC voltage is applied from a DC power source and the other electrode grounded via a switching transistor (22). Th...
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WO/2009/151033A1 |
A large harmonic current flows through an armature winding (16CR) during a high‑load heating operation to inductively heat a rare earth magnet (14MRb) and reduce the residual magnetic flux density. The rotational speed of a radial gap ...
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WO/2009/138285A2 |
The invention relates to a method for examining the state of an electric motor, comprising the step (101) of capturing a measured first physical variable of the electric motor by way of measurement, the first physical variable being indi...
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WO/2009/128815A1 |
A loader vehicle including a frame system, a plurality of wheels, a plurality of drive units and a controller. The plurality of wheels are subject to rapidly changing loads and are associated with the frame system. The plurality of drive...
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WO/2009/126288A2 |
A system for transitioned field oriented motor control is described. The system may include a module using a current-based algorithm to estimate flux and a module using a voltage-based algorithm to estimate flux. A weighting module opera...
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WO/2009/123118A1 |
An angle calculation unit (24) finds the angle θ of the rotor and an angular velocity calculation unit (25) finds the angular velocity ωe of the rotor. A command current calculation unit (21) calculates the dq axis command currents id*...
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