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WO/2020/031942A1 |
The position estimation method according to the present disclosure includes: obtaining learning data from a storage medium storing the learning data including a sequence of a plurality of measurement values specifying the waveform featur...
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WO/2020/031937A1 |
This position estimation method includes: the acquisition of learning data from a storage medium for storing learning data, which includes a list of a plurality of measured values which define the waveform characteristics of a first elec...
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WO/2020/031938A1 |
The position estimation method according to the present disclosure includes: obtaining first learning data including a sequence of a plurality of measurement values specifying the waveform feature of a first electric signal output from a...
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WO/2020/023598A1 |
A three-phase motor drive system for operation from a three-phase alternating current (AC) power source. The three-phase motor drive system includes a three-phase hybrid active harmonic filter (AHF) having an input operably connected to ...
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WO/2020/020451A1 |
A method for controlling an electric motor (16), the method comprising determining a planned reference speed (32) of the electric motor (16); determining a pulse-width modulation (PWM) switching frequency based on the planned reference s...
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WO/2020/021005A1 |
Laundry treating machine (100) comprising: a casing (103), a laundry drum (104) mounted inside the casing (103) to rotate about a rotation axis, an electric motor (2) designed to rotate the laundry drum (104), an inverter-based apparatus...
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WO/2020/015996A1 |
The invention relates to a method for monitoring at least the motor temperature as a motor parameter during operation of at least one electric motor (1) at power electronics (2), having the following steps: acquiring electrical motor var...
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WO/2020/003807A1 |
In a multiphase motor, no matter which phase there is phase interruption for, the phase of the current is adjusted appropriately. A controller 203 controls the driving of a motor 100. The motor 100 has a plurality of armature windings 12...
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WO/2019/238296A1 |
The invention relates to a method for operating an electric machine (5), in particular a turbocharger (1). The electric machine (5) has a multi-phase drive winding which is energized in order to generate a torque in at least one first ro...
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WO/2019/241109A1 |
A system may include an output stage for driving a load at an output of the output stage, a pulse-width modulation mode path configured to pre-drive the output stage in a first mode of operation, a linear mode path configured to pre-driv...
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WO/2019/235604A1 |
This control device acquires a measured value of a physical quantity relating to electricity input into an electric motor of a crusher, said acquisition being performed with a frequency at least equal to the frequency of a power source c...
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WO/2019/235353A1 |
This control device (30) calculates a fundamental wave command value for allowing fundamental wave current to flow through stator windings (12U-12W) and a harmonic wave command value that is a command value superimposed on the fundamenta...
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WO/2019/229107A1 |
A drive machine (1) for a submarine, having a three-phase motor (2), in particular a permanently excited synchronous motor. The drive machine further comprises a converter having an intermediate circuit capacitance. An energy source (3, ...
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WO/2019/230599A1 |
Provided are a phase shift detection system, a phase shift correction system, a drive system, a synchronous motor system, and a phase shift detection method capable of detecting a phase shift without using an induced voltage. A phase shi...
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WO/2019/208007A1 |
This motor drive device performs stable current control even when an external disturbance occurs, while suppressing steadily occurring current ripples. The motor drive device 100 is provided with a power conversion circuit 103 for drivin...
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WO/2019/201426A1 |
A drive unit (10) for at least one electric motor (14) of a robot (12), the drive unit (10) comprising at least one inverter (16); a power source (18); a DC bus (22); a DC bus energy storage (24) arranged on the DC bus (22); a DC bank en...
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WO/2019/187721A1 |
In order to suppress vibration in a motor (5), the load torque of which periodically fluctuates, control of periodically changing output torque of the motor (5) is performed. In the control, at least one of first control and second contr...
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WO/2019/174627A1 |
An equivalent air gap model for a motor. An induction motor and a synchronous motor are structurally divided into three parts, i.e., an initial excitation magnetomotive force unit, a modulator, and a filter that are cascaded. An initial ...
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WO/2019/163589A1 |
This motor control system is provided with: an inverter that drives a motor; and a control calculation unit that subjects the inverter to feedback control. The control calculation unit is provided with: a voltage control calculation unit...
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WO/2019/163587A1 |
This motor control system is for driving a motor having a phase number n of 3 or higher. The system comprises an inverter and a control calculation unit for performing feedback control of the inverter. The control calculation unit compri...
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WO/2019/163553A1 |
One mode of a motor control system comprises an inverter that drives a motor, and a control calculation unit that calculates a current command value showing the current supplied to the motor from the inverter. The control calculation uni...
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WO/2019/163588A1 |
Provided is a motor control system including an inverter for driving a motor and a control operation unit for feedback controlling the inverter, wherein the control operation unit includes a voltage control operation unit that computes a...
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WO/2019/163554A1 |
Provided is a noise compensation adjustment method. One embodiment of the method comprises: a measuring step of measuring noise by driving a motor with respect to a coupling system including the motor and a driving body coupled to the mo...
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WO/2019/163552A1 |
This motor control system comprises an inverter and a control calculation unit that performs feedback control of the inverter. The control calculation unit comprises: a voltage control calculation unit that, on the basis of the current d...
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WO/2019/155529A1 |
A power conversion apparatus (1) is provided with a control device (11) and a power converter (10) for supplying power to a rotary electric machine (3). The control device (11) is provided with: a first switching pattern generation unit ...
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WO/2019/149502A1 |
The invention relates to a method for operating a rotating field machine (2) of a motor vehicle, wherein at least two winding systems (2a, 2b) of the rotating field machine (2) are supplied with current (idc, idc1, idc2) from a DC link (...
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WO/2019/145067A1 |
The invention relates to an electrical inverter that comprises electronic components and converts direct voltage into alternating voltage in a clock mode, the inverter being operated in different operating ranges including a load operati...
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WO/2019/146746A1 |
An estimation computing processing unit comprises: a first data application unit which, on the basis of first data indicating the relationship between a permanent magnet temperature, a phase current, and the inductance of a rotating mach...
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WO/2019/138809A1 |
This control device for an electric motor includes a load speed calculation unit, a position control unit, a speed control unit, and a subtractor. The load speed calculation unit generates a load speed signal from a load acceleration sig...
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WO/2019/138808A1 |
This control device for an electric motor includes a position control unit, a command acceleration calculation unit, a first subtractor, and a second subtractor. The position control unit receives input of a position command signal that ...
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WO/2019/130685A1 |
In the present invention, in an electromagnetic device that uses a coil current, such as a motor, an initial value of a desired coil current waveform is inputted, a magnetic field analysis is performed for the electromagnetic device, a p...
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WO/2019/123573A1 |
This electric motor control device is configured by being provided with: a speed controller for calculating a manipulated variable for an electric motor and outputting the manipulated variable; a first filter for calculating, using the m...
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WO/2019/117329A1 |
In this work, it is shown for the first time that the power and the impedance in a transformer circuit depend on the phase of the flux, hence the phase of the current. There is a phase change when the flux travels the magnetic core, and ...
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WO/2019/114474A1 |
A method for correcting the position of a motor rotor comprises the following steps: (S11) acquiring an angle difference Δθk of the position of a motor rotor; (S12) according to the angle difference Δθk of the position of the motor r...
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WO/2019/115238A1 |
The invention relates to a method for determining a rotor displacement angle (θ) of an electric machine (30) comprising a rotor (32) and a stator (33), with at least one phase winding (U, V, W), a switching charge regulator (LR) being a...
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WO/2019/111728A1 |
The purpose of the invention is to compensate for the influence of parameter fluctuation which is problematic when using feedforward control for improving the operation noise, and to suppress the fluctuation of motor output. A controller...
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WO/2019/111372A1 |
The present invention comprises: a control amount computation unit (13) that computes two or more control amounts indicative of the driving state of a rotating electrical machine (3), such computation based on the output current and the ...
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WO/2019/111647A1 |
Provided is a rolling system control device (40) that is inexpensive and can achieve highly accurate power factor compensation. Accordingly, the rolling system control device (40) is applied to a rolling system having: a measurement unit...
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WO/2019/102032A1 |
The invention relates to a method for adjusting values of a plurality of parameters of at least one controller (2, 3, 4) of an electric drive system (1), comprising the following steps: providing an individual replacement parameter value...
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WO/2019/097965A1 |
This motor control device is provided with: a control unit which controls the number of rotations of a motor in accordance with a required number of rotations by implementing a first control which enables high-torque and precise control ...
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WO/2019/087454A1 |
The vacuum pump according to one embodiment of the present invention comprises a pump main body, a first temperature sensor, a motor, and a control unit. The pump main body has a rotary shaft and a metal casing part. The first temperatur...
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WO/2019/081046A1 |
In order to improve a method for selecting a frequency converter for a refrigerant compressor unit, comprising a refrigerant compressor and an electric drive motor, in such a way that the frequency converter is selected to meet applicati...
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WO/2019/073633A1 |
The purpose of the present invention is to provide a speed detection method for maintaining a fine time axis resolution and a power conversion device that uses the method. This power conversion device comprises an inverter for converting...
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WO/2019/075122A1 |
Techniques are disclosed for systems and methods to control operation of a cryocooler/refrigeration system to provide cryogenic and/or general cooling of a device or sensor system. A cryocooler controller includes a motor driver controll...
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WO/2019/065334A1 |
This motor driving device has: a driving unit which supplies a driving current to a motor; a detection unit which detects driving data; a storage unit which stores the driving data; an information retention unit which retains determinati...
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WO/2019/051621A1 |
The invention describes a predictive control method for rectifiers/inverters, which defines mathematical models that represent a load/network and a converter/inverter, to then define control objectives for the load/network and the conver...
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WO/2019/052639A1 |
The invention relates to a method for operating a permanently excited synchronous machine (1) which is connected to a three-phase power system (8) and has a stator (2) with a three-phase stator winding, a rotor (3) and a thyristor contro...
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WO/2019/049625A1 |
A current estimating device that estimates a capacitor current of a high-voltage circuit for driving a motor, wherein the current estimating device calculates a voltage utilization rate using the input voltage of an inverter included in ...
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WO/2019/049188A1 |
The present invention drastically reduces the amount of data by treating current flowing through an AC electric motor as a DC amount. The present invention also performs, in a monitoring device, edge processing for determining an abnorma...
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WO/2019/042692A1 |
The invention relates to a method for determining at least one characteristic variable (1) of an electric machine (2) in a motor vehicle (3). The motor vehicle (3) has at least the electric machine (2) for driving at least one component ...
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