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Patent Searching and Data


Matches 1 - 50 out of 11,338

Document Document Title
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)...  
WO/2017/178760A1
The invention mainly relates to a combustion engine starter for a motor vehicle, comprising: - an electric motor (DCM) comprising wound poles and/or permanent magnets and a separate assembly of windings (Wm), - a device for increasing th...  
WO/2017/180256A1
The method is for making an electric motor more efficient by iteratively changing when a processor sends activation signals to transistors (Q1, Q2) to minimize a current required to rotate a rotor (16) at a constant rotational speed. The...  
WO/2017/174957A3
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/174957A2
Methods and control apparatus for operating a three-phase electric motor are described, in which the motor windings are switched between Star and Delta connections depending on torque requirements, and in which the motor windings are swi...  
WO/2017/161614A1
A multiphase alternating current electric motor structure and a driving circuit thereof. The electric motor structure comprises a stator iron core and a stator coil unit wound thereon, wherein the stator coil unit is composed of two or m...  
WO/2017/153098A1
The invention relates to a motor starter (10) for an electric motor (20), wherein the motor starter (10) comprises a first and a second phase (12, 14). Said motor starter and electric motor each have an associated switching apparatus (29...  
WO/2017/118723A1
The invention relates to a vacuum pump drive (12) comprising at least one electric motor (18) which is connected to the rotor (14) of a vacuum pump (13) via a drive shaft (16), a frequency converter (20) which is electrically connected t...  
WO/2017/111480A1
The present invention provides a driving device of a starter motor. The driving device of the starter motor of the present invention comprises: a solenoid switch for switching a first contact point mediating between a battery and the sta...  
WO/2017/108301A1
The invention relates to a PM line-start motor and to a switch-on method therefor, preferably for motors having a power of at least 5 kW. The motors comprise a rotor and a stator having a stator winding, wherein the stator winding is des...  
WO/2017/103140A2
A system for controlling an AC motor is provided. The system comprises an electrical connection path for connecting an electrical input of the AC motor to a first phase of alternating current from an electric power supply. The system als...  
WO/2017/106216A3
A system may include a prime mover configured to provide mechanical energy to the system by spinning a shaft. The system further includes a synchronous AC generator mechanically coupled to the shaft, and an exciter mechanically coupled t...  
WO/2017/103140A3
A system for controlling an AC motor is provided. The system comprises an electrical connection path for connecting an electrical input of the AC motor to a first phase of alternating current from an electric power supply. The system als...  

Matches 1 - 50 out of 11,338