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Patent Searching and Data


Matches 1 - 50 out of 11,363

Document Document Title
WO/2018/227121A1
A load control device may control power delivered from a power source, such as an alternating-current (AC) power source, to at least two electrical loads, such as a lighting load and a motor load. The load control device may include mult...  
WO/2018/209892A1
The invention discloses a dedicated controller and method for a household kitchen garbage disposal, wherein a circuit structure of the controller comprises a double-pole double-throw relay (K1) for controlling the switching of a motor se...  
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/2018/198406A1
The purpose of the present invention is to provide a motor control apparatus provided with a rotation position detector capable of detecting the rotation position of the motor every 90° by electric angle, wherein the phase at the start ...  
WO/2018/195559A2
A rotating field machine (200) including a stator (140) and a rotor (150) are provided. In particular, a dual-winding rotating field machine (200) in which the stator (140) includes two separate windings can be provided. In one example i...  
WO/2018/185511A1
This method for controlling an asynchronous electrical motor (32) of a compressor system (10), comprises: - connecting (100) a capacitor bank (50) of the compressor system (10) in parallel with a first electrical motor (32) of the compre...  
WO/2018/185514A1
This method for controlling asynchronous electrical motors of a compressor system, comprises: - receiving an order to start a first asynchronous electrical motor and a second asynchronous electrical motor of a compressor system; - unload...  
WO/2018/187346A1
A drive circuit for an electric pump motor is provided. The drive circuit includes an inverter and a contactor. The inverter is configured to supply variable frequency current to the electric motor. The contactor is configured to supply ...  
WO/2018/183783A1
A multispeed alternating current (AC) machine circuit is for an AC power source having a first side and a second side. The AC machine circuit includes two or more pairs of power switches, one or more windings, and a control circuit to cl...  
WO/2018/166553A1
The invention relates to a method for maintaining a detected absolute position of an electric motor operating as an actuator during a critical operation. The electric motor (2) is controlled by a controller (1) which is supplied with ene...  
WO/2018/167342A1
The invention consists in combining the use of a switched system in a permanent-magnet three-phase electric motor, by means of which the winding of the motor can be connected selectively in star or delta connection in order to increase t...  
WO/2018/168161A1
Provided is an electric hoisting machine with which, even in cases where a starting capacitor or and drive capacitor are mounted, an increase in size can be prevented and/or an increase in man-hours for mounting can be prevented. This el...  
WO/2018/162192A1
The invention relates to a method for operating an inverter (130) for a drive system (100). The inverter (130) is designed to electrically couple a direct-current source (110) to a drive device (120) of the drive system (100). The method...  
WO/2018/158220A1
The invention relates to a drive system for a working machine, comprising an electric main drive; a switching device for connecting the main drive to an electric main grid; an electric auxiliary drive; a frequency converter for controlli...  
WO/2018/160122A1
An electrical synchronous machine (1) comprises a rotor (20) with rotor field windings (22) and a stator (10) with stator windings as well as a rotor power supply (50) and a stator power supply (60). The rotor power supply (50) is arrang...  
WO/2018/160950A1
A motor control assembly (700, 900) may include a transformer (930) having a primary winding (932) through which AC power to a run winding of the motor passes, an AC current sensing circuit (770, 1000) connected to a secondary winding (9...  
WO/2018/150240A1
The invention of resistive soft start electromotor is a new method to resolve the problems and drawbacks of present soft starters including primary shock of current inrush and both conserves energy and is cost-effective. The inventive me...  
WO/2018/134840A1
The present invention relates to secured externally controllable standalone domestic board breaker system with available protection system which replaces electro-thermo-mechanical era of domestic supply board system, said system comprisi...  
WO/2018/132042A1
The invention relates to the field of operating and maintaining electric motors and is intended for restoring winding insulation to its original parameters. A method for controlling an electric motor is proposed, in which the resistance ...  
WO/2018/123524A1
A power generation device comprising: an electric motor (18) that has a first object, a second object, permanent magnets, and windings (15, 16, 17), and that generates an electromotive force in the windings by relative motion between the...  
WO/2018/112567A1
The present invention relates to a centrifugal switch (100) for activating a single-phase rotating electrical machine, comprising a support (200), an activating disc (300), counterweights (400), and elastic elements (500), wherein each c...  
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/2018/104754A3
A method of controlling a switched reluctance motor is disclosed herein. The motor comprises a stator carrying a plurality of phase windings and a rotor. The method comprises activating the phase windings in a sequence selected to apply ...  
WO/2018/104754A2
A method of controlling a switched reluctance motor is disclosed herein. The motor comprises a stator carrying a plurality of phase windings and a rotor. The method comprises activating the phase windings in a sequence selected to apply ...  
WO/2018/096218A1
A dual actuated power pack (300) comprises a battery (104) and first (101) and second (102) electric motors, as well as a power generator (103). The first electric motor (101) is powered by the battery (104) and the second electric motor...  
WO/2018/086688A1
In order to achieve the energy efficiency class IE4 defined in IEC standard 60034, it is necessary to operate permanent-magnet synchronous machines directly from the supply system. Since this is not readily possible, soft-starting device...  
WO/2018/089581A1
To avoid control failure resulting from startup of a PMSM that is windmilling (15), initial speed and position are determined before startup (5). A controller uses a FOC routine having a speed PI control loop, field-weaken control, a cur...  
WO/2018/082579A1
The invention discloses a method, a device and a system for heating a motor. The method comprises: acquiring a first temperature measured value of the motor (S10); determining whether the first temperature measured value falls within a p...  
WO/2018/078838A1
This drive device (100a) is used together with a rotary compressor (8) provided with an electric motor (1) having a coil (3), and drives the electric motor (1). The drive device (100a) comprises: an inverter (103); a connection switching...  
WO/2018/067833A1
Embodiments of the present disclosure relate to a refrigeration system that includes a compressor configured to circulate refrigerant along a refrigerant loop, a motor (106-1, 106-2, 106-3) configured to drive the compressor, and a varia...  
WO/2018/048248A1
A method for restarting a motor according to the present invention is executed by a motor control center system comprising: an integrated module (100) installed in accordance with a motor control center; a plurality of protective control...  
WO/2018/042920A1
In order to stably operate a car in the absence of magnetic pole position signals from a magnetic pole position sensor, this elevator system comprises: a synchronous motor which drives the car; a brake; and a drive control device for the...  
WO/2018/035781A1
An application method and system for controlling forward rotation in a horizontal winding machine, the method comprising the following steps: detecting a state of a horizontal winding machine (S101); receiving a motor forward rotation op...  
WO/2018/035780A1
A vertical winding machine forward rotation implementation method and system, the method comprising the following steps: detecting a state of a vertical winding machine (S101); receiving a motor forward rotation operation command (S102);...  
WO/2018/024832A1
The invention relates to a soft starter (10) for connecting at least one main circuit (12, 14, 16), each of which includes a bypass circuit (20) having a semiconductor switch (22). Said soft starter (10) comprises a control unit (40) for...  
WO/2018/015398A1
The invention relates to a control apparatus for a refrigerator compressor having at least one two-phase AC asynchronous motor (K1, K2), having mains connection means (10) for connection to a preferably public voltage supply network whic...  
WO/2018/007424A1
A method and apparatus is described in which a series of short-circuiting pulses is applied to a motor. A current in the motor is determined after one or more of the series of short circuit pulses has completed. The duration of the short...  
WO/2018/002077A1
A method for starting an induction machine (12) without residual flux comprises: scanning a state of the induction machine (12) with different stator frequencies (ωs, 28) by controlling a supply voltage (Vs) applied to the induction mac...  
WO/2017/221595A1
Provided is a capacitor-start single-phase induction motor with which a large startup torque can be obtained. This single-phase induction motor is equipped with: a main coil; an auxiliary coil connected in parallel to the main coil; a ca...  
WO/2017/218204A3
An electrical machine includes a stator core and a plurality of windings subdivided into a plurality of multiphase motor cells, each multiphase motor cell having M windings associated therewith, and having a phase shift relative to other...  
WO/2017/211434A1
A controller for a drive motor (60) of a product conveyor belt at a checkout has a phase-gating and/or phase-chopping controller (50) which controls the drive motor (60) in such a manner that the product conveyor belt is accelerated with...  
WO/2017/208229A1
An electronic locking apparatus for locking a cabinet doors, single or multistage drawer and a controlling method thereof are provided to lock or unlock easily by using an electronic manner instead of a key. The lock actuator is mounted ...  
WO/2017/202327A1
A star-delta switching starter for a three-phase alternating-current motor comprises three three-pole air circuit breakers, including a main switch circuit breaker (1), a star circuit breaker (2), and a delta circuit breaker (3). The mai...  
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/2017/186906A1
The invention relates to an apparatus (4) for operating an electrical load (2), in particular an electric motor (3), having a supply connection (Ubat) which is connected/can be connected to an electrical energy source, having a load conn...  
WO/2017/187128A2
A method for controlling an electric motor having a rotor, the method being carried out after a shut down of the motor has been initiated, the method comprising: starting a timer in a motor controller; performing regenerative braking to ...  
WO/2017/187128A3
A method for controlling an electric motor having a rotor, the method being carried out after a shut down of the motor has been initiated, the method comprising: starting a timer in a motor controller; performing regenerative braking to ...  
WO/2017/180132A1
Systems, apparatuses, and methods are disclosed herein for controlling winding configurations of an electric machine. The apparatus includes an operation condition circuit structured to receive data indicative of an operating condition o...  
WO/2017/178067A1
A compressor unit (2) for use in a refrigeration circuit, comprises at least two compressors (8, 10); and a common variable frequency drive (6), configured to be connected to a three phase grid voltage supply (4); each compressor (8, 10)...  

Matches 1 - 50 out of 11,363