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WO/2023/146814A1 |
A method of operating a motor drive includes injecting a high frequency signal to determine position error information in order to automatically adjust the magnitude of stator current in I/F control. The method includes: determining a lo...
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WO/2023/142175A1 |
Provided in the present invention are a torque elevation method, apparatus and device for an electric motor, and a readable storage medium. The method comprises: acquiring a rotation speed feedback value of an electric motor, and accordi...
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WO/2023/146890A1 |
An electric power system for a vehicle includes one or more power conversion systems electrically connected in parallel for each phase of an electric motor of an electric drive system. Each power conversion system is electrically coupled...
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WO/2023/145598A1 |
Disclosed is a drive device for a field winding-type rotating electrical machine that drives a field winding-type rotating electrical machine in which a rotor winding is wound around a rotor core. The drive device comprises an electrical...
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WO/2023/145732A1 |
In the present invention, an electric machine system comprises an electric machine and a controller. The electric machine has a stator including a first winding set and a second winding set, and a rotor which includes a magnet and is cap...
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WO/2023/135309A1 |
An inverter for an electric motor comprises first, second, third, and fourth current sensors configured to generate signals indicative of first, second, fourth, and sixth phase currents flowing through first, second, fourth, and sixth ph...
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WO/2023/136237A1 |
This control device controls an N-phase inverter when N is an integer of 3 or more. The control device comprises: a lowpass filter; a current detection unit; and an average processing unit. The lowpass filter has a frequency characterist...
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WO/2023/134914A1 |
The invention relates to a method for controlling a drive system of a rail vehicle. The drive system comprises at least one DC voltage intermediate circuit with at least one intermediate circuit capacitor to which an intermediate circuit...
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WO/2023/136340A1 |
[Problem] To provide a power conversion device which is capable of linear switching between pulse width modulation which has a high noise suppression effect but in which the modulation factor is limited, and pulse width modulation which ...
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WO/2023/123783A1 |
Provided are multi-phase motor control method and apparatuses, and a readable storage medium. The method comprises: when a multi-phase motor has a phase loss fault, acquiring a current position of a rotor of the multi-phase motor; accord...
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WO/2023/123676A1 |
A single-resistor detection method, an electric motor control method, an electric motor controller, and an electric motor control system. The method comprises: acquiring a direct-current bus current that flows through a single sampling r...
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WO/2023/123675A1 |
A switch tube junction temperature measurement method, an electric motor controller, an electric motor control system, and a medium. The electric motor control system comprises a three-phase inverter bridge (10) for driving an electric m...
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WO/2023/119668A1 |
Provided is an electric control device that controls drive current for driving an electrically powered device in accordance with an input signal and comprises: a computer for calculating a target value on the basis of the input signal an...
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WO/2023/122360A1 |
Examples may include an apparatus including a circuit coupled between a supply line, a return line, and a terminal. The circuit may provide an oscillating signal to the terminal. The circuit may include a first switch to couple the suppl...
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WO/2023/118483A1 |
The invention relates to a kit (100) for frequency converters (1), wherein the kit (100) comprises: motor-control modules (2) which are designed to control the operation of an electric motor (50) connected to the frequency converters (1)...
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WO/2023/118495A1 |
The invention relates to a configurable frequency converter (100), comprising: a processor (1) with n processor cores (1a, 1b), where n > 1, wherein in a first configuration, the frequency converter (100) has m power electronics (2a, 2b)...
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WO/2023/117941A1 |
The invention relates to a technique for controlling semiconductor switches (112; 114) of a circuit arrangement, in particular in the form of buck converters (100), boost/buck converters or flyback converters at a DC source or at an AC s...
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WO/2023/118479A1 |
The invention relates to an assembly (100) for different types of a series of frequency converters, wherein the assembly has: - safety controllers (4a) of a first type designed to provide functional safety functions of a first type, - sa...
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WO/2023/119863A1 |
Provided is a motor driving control apparatus and a motor driving control method of which driving efficiency of a motor is high, and that can suppress vibrations from being generated. A motor driving control device (1) includes a contr...
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WO/2023/110200A1 |
The invention relates to a method (400) for operating an inverter (110), comprising the steps of: - controlling (450) the inverter (110) for transferring the inverter (110), the intermediate circuit capacitor (140) and the electric machi...
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WO/2023/112983A1 |
This motor drive device 1 comprises: a rectification circuit 10 for rectifying a power supply voltage from a single-phase or three-phase alternating-current power supply 100 to a direct-current voltage; an inverter circuit 20 for inverti...
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WO/2023/112139A1 |
Provided is a driving circuit which is for a voltage driven-type power semiconductor switching element and which is capable of performing switching control efficiently in accordance with a driving condition, while having a relatively sim...
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WO/2023/109421A1 |
A dead zone compensation method and apparatus, a computer device, a computer readable storage medium, and a computer program product. The method comprises: (S102) acquiring a dead zone compensation time setting value and an action time s...
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WO/2023/113726A1 |
The invention relates to a half-closed-loop scalar control method for torque/speed control of squirrel cage induction machines. In the scalar control method, a nonlinear equation solver developed on top of a linear PI controller is used ...
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WO/2023/107976A1 |
A power tool includes a motor, a switching module, a plurality of rotor position sensors, and a controller. The switching module includes a plurality of high-side switches and a plurality of low-side switches. The rotor position sensors ...
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WO/2023/105792A1 |
This power conversion device (1) comprises: a rectifying unit (130) that rectifies first alternating-current power supplied from an alternating-current power supply; a smoothing unit (200) connected to an output end of the rectifying uni...
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WO/2023/108019A1 |
Systems and methods are for a machine having an alternating current (AC) power source with a first side and a second side, at least one winding, a voltage polarity sensor, a Hall effect sensor, four bi-directional power switches each com...
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WO/2023/105676A1 |
A power conversion device (1) comprises: a rectifier unit (130) that rectifies a power supply voltage which has been supplied from a commercial power source (110); a capacitor (210) that is to connected to the output terminal of a rectif...
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WO/2023/105710A1 |
An electric motor driving device (110) comprises: a converter (110); a capacitor (114); a voltage detection unit (115); an inverter (120); an electric current detection unit (116); and a control unit (130). The control unit (130): calcul...
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WO/2023/108121A1 |
A power tool including a motor, a power source interface configured to connect to a power source, and a printed circuit board ("PCB") electrically connected to the motor and the power source interface. The PCB includes a three-level or g...
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WO/2023/100580A1 |
In the present invention, while satisfying constraints on power supply capacity, desired air flow-static pressure characteristics are satisfied without excessively limiting the drive current. The present invention comprises: a control ...
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WO/2023/100360A1 |
A power conversion device (1) comprises: a converter (150) that rectifies a first AC voltage which is supplied from an AC power supply (110); a capacitor (210) that is connected to an output terminal of the converter (150) and that smoot...
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WO/2023/100267A1 |
A power conversion device (10) comprises: a first converter circuit (2) for converting AC voltage to DC voltage; an inverter circuit (5) for converting the DC voltage to AC voltage; a first smoothing unit (11) which is connected between ...
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WO/2023/095705A1 |
In the present invention, a motor device comprises: a motor driven by AC drive power; an inverter that supplies drive power to the motor; and a controller that generates pulse signals for controlling the drive power, using a carrier and ...
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WO/2023/092808A1 |
A method for controlling counter-electromotive force in a train, comprising: a train control and management system (TCMS) delivering to a traction control unit (TCU) an instruction of opening a main circuit breaker (S101); and after the ...
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WO/2023/092224A1 |
As more power electronics apparatuses use fast switches, such as silicon carbide (SiC) or gallium nitride (GaN) switches, to improve the efficiency and reduce switching losses, significantly higher electromagnetic interferences (EMI) are...
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WO/2023/095696A1 |
A pedal device (1) comprising a pedal lever (20), an actuator (40), and a control unit (60). The pedal lever (20) operates in response to a depressing operation. The actuator (40) can apply a reaction force in a direction of returning th...
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WO/2023/089509A1 |
A method of driving a synchronous motor is described, comprising: generating a drive signal comprising a non-continuous series of full cycle pulses of a specified time period, the timing of such full cycle pulses corresponding to a desir...
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WO/2023/087331A1 |
Provided in the embodiments of the present application are a charging and discharging circuit and system, and a control method therefor. The charging and discharging circuit comprises: a power supply module, which comprises at least a fi...
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WO/2023/089805A1 |
This electric motor control device controls an electric motor that operates by power supplied from a power source and converted using a power conversion device having an inverter. The electric motor control device is provided with: a det...
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WO/2023/087516A1 |
A fracturing apparatus and an activation method therefor, and a fracturing apparatus set. The fracturing apparatus (100) comprises a fracturing pump (110), an electric motor (120), and an activation device (130), wherein the fracturing p...
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WO/2023/083615A1 |
The invention relates to a network-operable electric tool with a network connection, a rectifier which is arranged downstream of the network connection, and an electric motor with a motor stage arranged upstream, wherein the rectifier an...
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WO/2023/082445A1 |
A four-quadrant converter control apparatus capable of realizing frequency multiplication switching, and a control method thereof. The four-quadrant converter control apparatus comprises a control strategy unit (20) and a carrier switchi...
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WO/2023/084727A1 |
An electronic control device (1) comprises: a first power source circuit (11, 12) that is connected to a first ground (G1) and that generates, from an output voltage from a first external power source (PS1), a first voltage for which the...
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WO/2023/084693A1 |
Provided are a control device for an alternating current rotary machine, a vehicular drive device, and an electric power steering device that make it possible to reduce the effects of leakage current generated by fluctuations in the volt...
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WO/2023/084766A1 |
A converter control unit (8) of this thyristor starting device includes: a current control unit (14) for generating a voltage command value of the output voltage of a converter (1) by performing a control calculation using the integral e...
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WO/2023/084600A1 |
A power conversion device (1) comprises: a capacitor (210) connected to the output ends of a rectifying unit (130) that rectifies a first AC power supplied from a commercial power supply (110); an inverter (310) connected to both ends of...
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WO/2023/082441A1 |
A stage-controlled four-quadrant converter. For a locomotive electric transmission system, a voltage stage control method for an intermediate bus of the four-quadrant converter is used, such that the intermediate bus of the four-quadrant...
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WO/2023/079672A1 |
This motor drive device (1) has an inverter (50) and a control unit (70), and the inverter (50) has first switching elements (51, 52, 53) of an upper arm (50a), first recirculation diodes (51a, 52a, 53a), second switching elements (54, 5...
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WO/2023/081146A1 |
In other features, a refrigeration system is provided and includes a compressor motor, an inverter, a converter and a control module. The inverter is configured to convert a direct current (DC) bus voltage to an alternating current (AC) ...
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