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Matches 1 - 50 out of 8,126

Document Document Title
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
WO/2019/038631A1
The invention relates to a method for operating a ring spinning machine (1), having a plurality of spindles (8) which each comprise an electrical drive (9), each electrical drive (9) having a decentralised control module (10) which has m...  
WO/2019/033478A1
A multi-inverter motor controller, comprising a primary inverter (102) and a secondary inverter (103). The primary inverter (102) and the secondary inverter (103) are connected in parallel to the same motor (104). The primary inverter (1...  
WO/2019/024227A1
A food processor, and a constant speed control method and device therefor. The method comprises the following steps: detecting a zero-crossing signal of alternating current input to a motor (50) (S1); obtaining a zero-crossing point of t...  
WO/2019/020185A1
A method and apparatus for the adaptation of a motor drive system is described. The method includes applying a small signal frequency sweep to a motor drive system wherein the motor drive system includes an inverter, an output filter (e....  
WO/2019/021217A1
A power factor correction device for use in a powered system where in normal operation an output voltage exceeds an input voltage. The device comprises: at least one variable voltage stage (Fig 20) which receives an input signal from at ...  
WO/2019/022327A1
A motor has a two rotors which are independently operated using a single inverter and without being supplied with a complex current. Further the motor is capable of shifting a rotation direction of each of two rotors by performing a magn...  
WO/2019/021128A1
The invention relates to a load dump for example for connection to a dynamic brake resistor and is especially useful when several motor drives and motors are operating together, are interconnected in one system. A load dump for connectio...  
WO/2019/021663A1
Provided is a motor drive control device capable of reducing generation of vibrations with a simple circuit configuration. A motor drive control device (1) includes a motor drive unit (2) for selectively energizing coils (Lu, Lv, Lw) of ...  
WO/2019/020980A1
A method of controlling an induction motor, an apparatus and a computer program product are disclosed. The method comprises: in response to an indication that a rotational frequency of the rotor is to be reduced from an initial operating...  
WO/2019/015858A1
The invention relates to an electric machine. The machine has at least two sub-machines, each of which has the same number of phases and each of which is designed to generate a magnetic rotary field independently of one another in order ...  
WO/2019/015894A1
The invention relates to an electric machine, in particular an electric motor and/or generator. The electric machine has a stator and a rotor which is designed to be permanently magnetic or to be energized in particular. The machine has ...  
WO/2019/015820A1
The invention relates to a method for operating an electronically commutated motor (22) of a steering system (2) of a motor vehicle. The method comprises: operating an output stage with a first commutation model; determining that a rotat...  
WO/2019/016348A1
Method and device for estimating the torque ripple TTR of an electric motor (1) which is connected to a load (3), wherein the ideal rotational speed ωideal of the electric motor (1) is determined from an actuating torque Tset_UUT for th...  
WO/2019/014435A1
Apparatus featuring a signal processor or signal processing module configured to: receive signaling containing information about a sampled leakage magnetic flux sensed from a motor, a motor load profile containing a learned leakage magne...  
WO/2019/012915A1
This rotating electric machine drive system is provided with: a rotating electric machine (10) equipped with a rotor (12) in which each magnetic pole is constituted by a plurality of permanent magnets (22) and in which a salient pole por...  
WO/2019/010518A1
This invention provides a better 3 phase sensor-less permanent magnet motor control which further reduces power loss and electrical noise, and to provide a higher effective supply voltage to each winding. In order to do this the common n...  
WO/2019/012799A1
Provided is a novel electric motor control device with which control responsiveness is enhanced and the occurrence of an overshoot can be suppressed. The electric motor control device is provided with: a state feedback control block (51)...  
WO/2019/010518A8
This invention provides a better 3 phase sensor-less permanent magnet motor control which further reduces power loss and electrical noise, and to provide a higher effective supply voltage to each winding. In order to do this the common n...  
WO/2018/234440A1
Controller (1) for actuating an electric motor (2), wherein the controller (1) has: - a temperature sensor interface (3) for connecting an external temperature sensor (4), wherein the temperature sensor (4) is provided for monitoring the...  
WO/2018/235625A1
This motor control device controls a two-phase motor (M), using as output torque the combined torque of A-phase and B-phase motor units (MA, MB) that are combined so as to have a structural phase difference. The motor control device resp...  
WO/2018/230253A1
An electric motor control device (300) in which the control bandwidth of a feedback control system for feedback-controlling the state quantity of an electric motor or a load can be changed is provided with: a notch filter (302) arranged ...  
WO/2018/222398A1
According to one aspect of the invention, a motor control system for driving a motor for a powered air purifying respirator (PAPR) is provided. The motor control system includes a control printed circuit board assembly (PCBA) including a...  
WO/2018/214797A1
A control method and a control system (2), by which a motor (31) can be controlled. The control system (2) comprises a central processing module (22) and a drive control module (23). In a period in which a voltage is not applied to any p...  
WO/2018/214236A1
A method for adjusting a high efficiency region of a permanent magnet synchronous motor, specifically comprising: revealing an internal relation between a high efficiency point and points around same, ascertaining an optimal proportion o...  
WO/2018/202277A1
The invention relates to a method (100) for operating an electric motor (10), in particular a permanently excited synchronous motor, comprising the steps of: a) establishing an orientation (25) of the rotor (14) in relation to the stator...  
WO/2018/190114A1
A dynamo-electric machine (10), provided with a rotor (22) and a stator (23) obtained by winding stator windings (11, 12) in a plurality of slots (34) provided in the circumferential direction. The stator windings are configured from n g...  
WO/2018/178543A1
Method for determining a parameter of an asynchronous electrical machine during operation, the machine comprising at least one stator (7) and a rotor rotating relative to the stator about an axis, and radiating, during operation, around ...  
WO/2018/162195A1
The invention relates to the regulation of an electric machine, wherein an interference variable is compensated for and simultaneously a target value is set. In the process, two mutually independent control loops are provided. A first co...  
WO/2018/154736A1
A power conversion device (1) for an electric vehicle comprises an inverter (2) that drives a motor (55) mounted in the electric vehicle, and a control device (3) that controls the inverter (2) on the basis of driving commands. The contr...  
WO/2018/141460A1
The invention relates to a voltage generating device (100) having the following: - a mechanically drivable generator device (10) which is separately excited; wherein - an electric starting voltage of the generator device (10) can be rect...  
WO/2018/139295A1
The problem of the present invention is to effectively reduce vibration and noise generated from a motor. An inverter 300 uses a plurality of IGBTs 311 that are switching elements to generate an AC current from a DC current supplied from...  
WO/2018/135007A1
When driving a synchronous electric motor by a load commutated inverter, it has been often difficult for a conventional control device to restart the synchronous electric motor when the synchronous electric motor is idling at high speed....  
WO/2018/135746A1
The present specification relates to a control device and a control method for a linear compressor, the device and the method applying a test signal to the linear compressor, and detecting a motor current and a voltage of the linear comp...  
WO/2018/131273A1
The purpose of the present invention is to provide a motor drive device and a refrigeration apparatus capable of achieving suppression of motor current distortion caused by direct-current voltage ripples while adopting a small-capacity s...  
WO/2018/108651A1
The invention describes a method for the computer-assisted operation of an electric motor (M) which is exposed to a thermal load as a result of the rotational motion of its rotor (T) during operation. In this method, measured data is rec...  
WO/2018/104417A1
Method for controlling the speed of rotation of an electric motor (M), notably an asynchronous electric motor, by means of a variable speed drive (10) supplied with power by a mains electrical power supply (L1, L2, L3), in which method i...  
WO/2018/101158A1
[Problem] To enable large torque output, and to facilitate obtaining fixed output characteristics through field weakening. [Solution] The present invention comprises a circumferentially disposed stator winding SW, and a rotor winding RW ...  
WO/2018/100392A1
The present techniques generally relate to electric motor which may include one or more sensors usable to determine rotor alignment and/or speed. A method and apparatus for rotor alignment and/or speed error detection and/or correction a...  
WO/2018/100630A1
This propulsion control device is provided with a power conversion device that supplies power to an electric motor for driving an electric vehicle. The propulsion control device is provided with a torque command computing unit (30) for c...  
WO/2018/092049A1
A method for controlling an electric drive comprising a step of measuring the angle φ between the voltage Vf applied at least to a phase of an electric motor forming part of the electric drive and the respective phase current If, a step...  

Matches 1 - 50 out of 8,126