Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 16,343

Document Document Title
WO/2020/097770A1
Disclosed are a method for recognizing a mechanical parameter of a servo system, a servo control system, and a storage device. The method comprises: causing an angular acceleration speed of a servo motor to change a number of times; coll...  
WO/2020/097769A1
A method for acquiring friction characteristics of a servo system, a control method and system of a servo system, and a storage device. The method for acquiring friction characteristics of a servo system comprises: setting a servo system...  
WO/2020/098538A1
A torque control method for a doubly salient electro-magnetic electric motor, wherein the method relates to the technical field of control over variable-reluctance type electric motors and can suppress torque pulsation and improve the to...  
WO/2019/117329A8
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 ...  
WO/2020/088983A1
The invention relates to a method (100) for operating a voltage transformer (1), which converts an input voltage UZK provided on the DC voltage gate (2) of the voltage transformer into a three-phase or multiphase alternating voltage U on...  
WO/2020/087753A1
A drive control method, apparatus and system for an electric motor. The drive control method comprises: acquiring an output voltage set value of an inverter; calculating a voltage difference value according to a voltage instruction outpu...  
WO/2020/079999A1
This motor drive device (200) comprises: a power conversion circuit (204) which drives an AC motor; and a controller (203) which controls the power conversion circuit. The controller has: a command current calculation unit (206) which ge...  
WO/2020/073422A1
A high-power switched reluctance motor, comprising a stator (10), a rotor (4), a housing, and a cooling unit. Stator winding (11) is wound on stator teeth (102); the rotor (12) is supported and rotated by a rotating shaft (13); the shell...  
WO/2020/067576A1
A control device (10) for a power conversion device (3) according to an embodiment includes a drive control unit (16) controlling a current that is caused to flow through a stator winding of a motor (2), a drive quantity adjustment unit ...  
WO/2020/044791A1
This electric power converting system is provided with a power source device 1 for supplying electric power to a motor electric power converting device 2 which supplies electric power to a motor 3, wherein: the motor electric power conve...  
WO/2020/046280A1
Obstacle detection for a moving element activated by a motor is disclosed. The obstacle detection may comprise a controller to: move the element at a substantially constant speed; determine an actual torque value to move the element at t...  
WO/2020/041016A1
A device may receive a current measurement of a motor identifying a plurality of component currents associated with a plurality of phases. The device may determine a position estimate for the motor based on the plurality of component cur...  
WO/2020/039720A1
The purpose of the present invention is to provide a motor control device which can estimate a delay with high accuracy and suppress an influence of the delay, even when there is a disturbance torque or a fluctuation in delay time. To th...  
WO/2020/031129A1
The invention relates to a device and method for measuring directly and in real time, with respect to the mechanical torque, mechanical power and efficiency of electric motors operating in industrial conditions, which is formed by an ele...  
WO/2020/031943A1
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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, ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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 (...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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 ...  
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...  
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...  

Matches 1 - 50 out of 16,343