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Matches 1 - 50 out of 9,587

Document Document Title
WO/2018/010679A1
A motor temperature detection method and device, and an aerial vehicle. The method comprises the following steps: in the control process of a motor, superposing a detection current on a given d-axis current of the motor, and enabling the...  
WO/2018/012447A1
In the present invention a rotor position determination unit 10 uses induced voltages Vu, Vv, and Vw generated in each phase U, V, and W of an armature winding 5 to identify the rotor position. While a field current flowing in a field wi...  
WO/2018/008936A1
The present invention relates to a system for applying a maximum driving efficiency point of a load, comprising: a motor for driving a load; an inverter for controlling the speed and voltage of the motor; a sensor unit for measuring magn...  
WO/2017/220117A1
A turbomachinery system includes a turbomachine, a shaft, a rotor power converter, and an electrical machine. The electrical machine is coupled to the turbomachine by the shaft extending therebetween. The electrical machine includes a st...  
WO/2017/220924A1
A method for estimating the position and speed of the rotor of an alternating current machine for a motor vehicle. The method comprises the following steps: determining the stator currents of the machine in the three-phase reference fram...  
WO/2017/220234A1
The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stato...  
WO/2017/214972A1
Disclosed are a device and a method for stably stopping a motor. In this method, a first d-axis current reference value (id_ref1), a first q-axis current reference value (iq_ref1), and a first synchronous angle (Theta_fed) before a motor...  
WO/2017/216959A1
A motor system (101) relating to the present invention is equipped with: a motor wherein a first wire-wound section (6) and a second wire-wound section (7) are provided, and the number of the wire winding turns of the second wire-wound s...  
WO/2017/215822A1
The invention relates to a method for adjusting an amplitude of a voltage injection of a rotating, multi-phase electric machine, which electric machine is fed by means of a PWM-controlled inverter, comprising at least the following steps...  
WO/2017/208652A1
Provided is a motor control device in which high-frequency noise accompanying the detection of a direct-current bus current can be reduced without changing the switching frequency. This motor control device 3 comprises: a power converter...  
WO/2017/203987A1
A parameter identification device (12) is provided with: a data acquisition unit (120) for acquiring a torque τ relating to a motor, actual-measurement data of the angle θ(M) and angular velocity ω(M) of the motor, and actual-measurem...  
WO/2017/202530A1
The invention relates to a method for improving a starting process of an internal combustion engine (300) by means of a belt-driven starter generator (100), which has a stator winding (11) and a rotor winding (12), wherein the starter ge...  
WO/2017/199334A1
The control device 100 for a synchronous rotary machine 1 comprises: a current detection unit 2 which detects the current passing through the synchronous rotary machine 1; a control unit 3 which generates a voltage instruction for contro...  
WO/2017/199641A1
The purpose of the present invention is to reduce the number of times of switching to be performed when reducing a zero-phase current. This electric motor control device controls an electric motor, the phases of which are connected indep...  
WO/2017/197473A1
The present invention describes a closed-loop electronic control method for regulating the power of a direct current bus and at the same time controlling the switching of energy conversion power semiconductors in a model-based predictive...  
WO/2017/199661A1
[Problem] To generate braking torque without regenerative current flowing to a power supply. [Solution] This motor driving control device has: (A) an inverter unit that drives a motor; (B) a separation switch for electrically separating ...  
WO/2017/191146A1
A method for estimating one or more of the following quantities from an electromechanical machine and/or component, the method comprising the creation of a photorealistic numerical model of the electromechanical machine or parts of it, a...  
WO/2017/192631A1
Systems and methods are described for controlling an electric motor. An exemplary system may include a torque detector configured to detect an output torque of the electric motor. The system may also include a controller configured to co...  
WO/2017/187533A1
A motor drive device 100 according to the present invention drives a single-phase PM motor 3 and is provided with: a single-phase inverter 2 for applying an AC voltage to the single-phase PM motor 3; a rotor position detection unit 7 for...  
WO/2017/187536A1
An electric motor drive device according to the present invention is an electric motor drive device that is used for driving an electric motor, said electric motor being used in a compressor that compresses a coolant, wherein the electri...  
WO/2017/186505A1
One aspect of the invention relates to a method for shifting a transmission, which can be shifted into different gears, for a motor vehicle, wherein the motor vehicle comprises an electric machine which is connected to the input of a tra...  
WO/2017/186420A1
The invention relates to a method for controlling an electric machine (2) subjected to some extent to a reluctance moment in the event of a fault, said method involving the steps of detecting (S1) a degree of demagnetization (10) of the ...  
WO/2017/179236A1
A motor control device of an embodiment comprises: multiple magnetic pole position estimation parts for estimating magnetic pole positions of multiple motors; vector control sections for performing vector control for the multiple motors ...  
WO/2017/167493A1
The invention relates to a method for the current control of a pulse-width-modulated converter for an electric machine, particularly a pulse-width-modulated inverter connected to the electric machine. The machine and the inverter have a ...  
WO/2017/172367A1
A maximum acceleration identification system determines a suitable maximum acceleration for transitioning a given motion/motor system to a target position or velocity, taking the friction of the motion system into consideration. The maxi...  
WO/2017/172359A2
A system and method for speed regulation of a VFD circuit via an anti-windup control scheme that provides consistent speed response with no overshoot is disclosed. A control system for operating the VFD circuit includes a feedback contro...  
WO/2017/163450A1
In a system according to an embodiment, a rotating electrical machine is a permanent magnet type configured by forming magnetic poles of a rotor using permanent magnets. An inverter generates an AC voltage by switching and outputs the vo...  
WO/2017/159236A1
An electric motor is controlled using a feedback signal that includes an error between the measured current and the estimated current determined using the measured current, the measured voltage, and a model of the motor. A feedback gain ...  
WO/2017/158386A1
A control system for an electric motor comprises a current controller which produces a set of voltage demands for the motor, a current sensing means arranged to produce a current sensing output indicative of electric current in the motor...  
WO/2017/159277A1
A control system according to the present invention is provided with a plurality of control devices (11, 21). Each of the plurality of control devices (11, 21) is provided with an initial checking unit that performs initial checking befo...  
WO/2017/152938A1
A method (400) of determining equivalent circuit parameters of a three phase induction motor is provided. The method (400) comprises applying (410) a current to a stator winding (362) of an induction motor (360), and varying (420) a volt...  
WO/2017/154239A1
The invention of the present application pertains to a motor drive device and a method for detecting phase current in a motor drive device, and more specifically pertains to a technique for detecting the phase current of three phases, us...  
WO/2017/154185A1
This step-out detection device includes an alternating current component calculation unit, a harmonic component calculation unit, a rotational speed calculation unit, and a determination unit. The alternating current component calculatio...  
WO/2017/148755A1
A motor drive system and method for controlling an electric motor. The motor drive system includes a plurality of phase lines switchably connected to the electric motor, a plurality of controllable switches, and a controller. The control...  
WO/2017/151973A1
Circuits and methods for driving a load are disclosed. An exemplary driving circuit may include a plurality of switching devices and a controller electrically connected to the plurality of switching devices. The controller may be configu...  
WO/2017/151459A1
As speed operation range identification system for motion systems driven by permanent magnet synchronous motors (PMSMs) or induction motors leverages both characteristics of the motor as well as dynamic characteristics of the motion syst...  
WO/2017/146089A1
In the present invention a current controller (30) calculates a drive signal for driving an inverter (40) by means of fundamental wave current control and harmonic current control. A command value filter (11) performs a filtering process...  
WO/2017/143434A1
An energy-efficient and accurate torque control system and method for multiphase nonsinusoidal PMSM with or without open-circuited phase(s) under time-varying torque and speed conditions is based on orthogonally decomposing a phase volta...  
WO/2017/145749A1
In this motor control device, a two-phase/three-phase converter converts a d-axis voltage command and a q-axis voltage command to a UVW phase voltage command. A PWM circuit generates a drive pulse signal whose pulse width is modulated in...  
WO/2017/146090A1
In the present invention, a current controller (30) uses fundamental-wave current control and high-order current control to compute a driving signal for driving an inverter (40). Fifth order and seventh order voltage command computing un...  
WO/2017/136510A1
A method of controlling a motor may include receiving command data indicating only a desired torque and/or force for the motor and including no torque and/or force or current feedback data from the motor. Based on the command data and at...  
WO/2017/133824A1
The present invention discloses a method for determining a rotor angle of a rotor of an electric machine, having the steps of producing a torque-dependent test signal which depends on the torque of the electric machine and has a higher f...  
WO/2017/128498A1
A permanent magnet torque-reluctance torque separated motor and an optimal efficiency control method, belonging to the technical field of motors and control thereof. The permanent magnet torque-reluctance torque separated motor comprises...  
WO/2017/130842A1
In order to suppress pulsing of the current wave peak value and reduce the maximum value of the phase current, in this motor control device 10, a voltage phase detection unit 126 configures the voltage phase θvt of the applied voltage a...  
WO/2017/125231A1
The invention provides a device (10) and a method for controlling an electric machine (1). The method comprises the steps of: providing (S01) a desired torque value (54) for a torque to be exerted by the electric machine (1); determining...  
WO/2017/122296A1
An electric vehicle control device, provided with a voltage control unit for controlling the output voltage of an inverter, and a speed estimator 20 for computing an estimation value for the speed of a motor. The speed estimator 20 is pr...  
WO/2017/123832A1
Systems and method for controlling an alternating current (AC) electrodynamic machine (390) with a variable frequency drive (VFD) (380) include a control system (300) with a phase-locked-loop (PLL) circuit (382) for providing a stator fl...  
WO/2017/120211A1
The method of controlling a rotating three-phase motor involves generating in synchronism with the rotation of the motor a variable duty cycle pulse-width modulated signal for each of the switching circuit components used to supply curre...  
WO/2017/111390A1
An aspect of the disclosed invention calculates a value of an inductance of a synchronous motor whose characteristic is unclear while suppressing a failure of the synchronous motor. A motor driving device according to an embodiment of th...  
WO/2017/107105A1
A method (100) and an apparatus (200) for online estimation of an initial position of a surface permanent magnet motor in a stationary state or at a first speed. The method (100) for online estimation of the initial position of the surfa...  

Matches 1 - 50 out of 9,587