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Patent Searching and Data


Matches 201 - 250 out of 13,536

Document Document Title
WO/2014/037143A1
The invention relates to an operating state circuit for driving an inverter with half-bridges having respective switching devices, which inverter supplies an n-phase supply voltage to an n-phase electrical machine via phase connections a...  
WO/2014/032718A1
The invention relates to a switchgear (1) which comprises a control unit (2), a supply connection (7) and a first current path (15), the first current path (15) comprising a first electromechanical switch (11) and, connected in series to...  
WO/2013/113051A3
A method for monitoring the short-circuiting switching device of a three-phase motor (3) for the drive for vehicles, which switching device is fed from a DC voltage source (1) via a controlled converter (2), wherein the short-circuiting ...  
WO/2013/156571A3
The invention relates to a controller of a brushless direct-current motor having an upstream current converter, which has a half bridge having a pair of switching means (S1, S4, S2, S5, S3, S6) for each phase winding of the motor (M), th...  
WO/2013/149780A3
The invention relates to a method for electrodynamic braking of a universal motor, comprising the following steps during a braking operation: permanent determination of a speed of the universal motor; temporary, periodic short-circuiting...  
WO/2013/152900A3
The invention relates to an improved electrodynamic method for the braking of a universal motor. By means of assigning ignition angles of an electronic semi-conductor switch that short-circuits the armature of the universal motor during ...  
WO/2013/083139A3
The present invention relates to a method for controlled shutdown of wind turbines. The method involves using a generator side converter, and optionally a DC chopper, as a generator load during controlled shutdown. In this way gearbox ba...  
WO/2013/192142A1
A power system with regeneration may include an electric power storage element, an electric motor in electrical communication with the electric power storage element, a rotatable shaft operably coupled to the electric motor for rotation ...  
WO/2013/186065A1
The invention relates to a method for estimating the value of a braking resistor (Rf) used in a power converter connected to an electric motor (M). The power converter comprises a braking cell (CelF) connected to the first power supply l...  
WO/2012/146250A3
A variable speed wind turbine is provided. The variable speed wind turbine comprises a generator, a power converter for converting at least a portion of electrical power generated by the generator, the power converter comprising a genera...  
WO/2013/049302A3
Braking current generated by an electrical motor on mining equipment during a retard interval is switched through one or more grid resistors that are liquid cooled. Under low ambient temperatures, a heating current can be switched throug...  
WO/2013/122266A3
An electric working machine including: a motor; a driving unit configured to be driven by the motor; a trigger switch configured to allow rotation of the motor; a power supply unit configured to supply electric power to the motor; and a ...  
WO/2012/035385A3
An inverter apparatus basically includes an inverter (3), a rotational speed detecting component (12, 26, 27) and a control component (9). The inverter (3) includes a plurality of pairs of switching elements (Ql to Q6). The control compo...  
WO/2013/013678A3
A power dissipating arrangement for dissipating power from a generator in a wind turbine is provided. The generator comprises a plurality of output terminals corresponding to a multi-phase output. The power dissipating arrangement compri...  
WO/2013/076161A3
An actuator comprising at least one multiphase motor (100) having phases (101) facing a rotor (102) secured to an outlet shaft associated with a braking member (2) and provided with means for connecting it to a movable element that is to...  
WO/2013/149780A2
The invention relates to a method for electrodynamic braking of a universal motor, comprising the following steps during a braking operation: permanent determination of a speed of the universal motor; temporary, periodic short-circuiting...  
WO/2013/149710A1
The invention relates to an electric damper (10) for damping the relative motion between a first and a second mass, comprising a generator (26) that can be driven by the mass motion. The invention is characterized in that, in addition to...  
WO/2013/147011A1
This invention addresses the problem of providing a conveyor device and a zone controller in which regenerative current can be effectively utilized and a stable actuation can be ensured. The interior of the zone controller (10) is divide...  
WO/2013/145486A1
When current flowing through all electrical terminals of an alternating-current electric motor (21) is near zero, an operation is performed to set the electrical terminals of the alternating-current electric motor (21) in an open state, ...  
WO/2013/144439A1
The invention relates to a method and apparatus for a pressing process, such as for use of a waste compactor or the like, wherein a pressing force needed in the pressing process is being produced by action of an electric press motor (1 )...  
WO/2013/137480A2
An electric tool for driving a tip tool, the electric tool includes: a removable battery; the brushless motor configured to generate a driving force for driving the tip tool; an inverter circuit configured to supply drive power from the ...  
WO/2012/156251A3
The invention relates to a device for managing electric braking power (1), which device comprises a continuous bus (10), said continuous bus including: a connection pole (12) connecting to an electric traction machine (21) of a vehicle, ...  
WO/2013/124538A1
The invention relates to the monitoring of a brake (400, 500). The brake (400, 500) comprises first and second braking surfaces (204, 206) and magnetizing means (210) arranged to move the braking surfaces (204, 206) to an open state, in ...  
WO/2013/120727A1
The invention concerns a module for the regeneration of electrical energy, intended to be fitted to a speed variator, said module comprising: - two input terminals (d, e) each intended to be connected to a power supply line of the supply...  
WO/2013/122266A2
An electric working machine including: a motor; a driving unit configured to be driven by the motor; a trigger switch configured to allow rotation of the motor; a power supply unit configured to supply electric power to the motor; and a ...  
WO/2013/123201A1
In a motor control system (200), command to correspond to a target speed of a motor (110) is received. A rotational speed (SPD) of the motor is measured, and a brake-to-off ratio for a braking interval is calculated by a control logic (2...  
WO/2013/095721A3
This disclosure is directed to a traction motor drive system (200). The traction motor drive system (200) may include a field winding subsystem (202) comprising a field winding (105) associated with a traction motor (103). The traction m...  
WO/2013/119367A1
A reconfigurable battery has at least one bank of statically joined series connected battery cells, each cell including a positive and a negative pole. The poles connect through switches to respective output connections. Activating a set...  
WO/2012/156252A3
The invention relates to a device for managing electric braking power (1), which device comprises a continuous bus (10), said continuous bus including: a connection pole (12) connecting to an electric traction machine (21) of a vehicle, ...  
WO/2013/113051A2
A method for monitoring the short-circuiting switching device of a three-phase motor (3) for the drive for vehicles, which switching device is fed from a DC voltage source (1) via a controlled converter (2), wherein the short-circuiting ...  
WO/2013/025753A3
A system for operating a compressor. The system includes a motor, an inverter bridge, a voltage detection circuit, and a controller. The motor has a stator and a rotor. The inverter bridge is configured to provide a voltage to the stator...  
WO/2013/095721A2
This disclosure is directed to a traction motor drive system (200). The traction motor drive system (200) may include a field winding subsystem (202) comprising a field winding (105) associated with a traction motor (103). The traction m...  
WO/2012/131506A3
An electric motor arrangement comprising an electric motor and a controller, wherein the electric motor includes a stator having a plurality of coil windings, and a rotor having a plurality of permanent magnets, and the controller is arr...  
WO/2012/078369A3
A Complex Adaptive Phase Discriminator (PD), as presented in some concepts of the present disclosure, is an adaptive filter that accurately estimates the instantaneous frequency of a dynamic complex signal. The PD can demonstrate accurat...  
WO/2012/112430A3
A centrifuge includes a regenerative braking safety system including an electrical system reversibly coupled to a power source. A motor is coupled to the electrical system. The motor is capable of driving a rotor using power delivered th...  
WO/2012/149996A3
The invention relates to a drive system and a method for operating a drive system which has at least one electric motor which is fed by a converter, wherein the converter and the motor are connected via a cable system, in particular a hy...  
WO/2013/076161A2
An actuator comprising at least one multiphase motor (100) having phases (101) facing a rotor (102) secured to an outlet shaft associated with a braking member (2) and provided with means for connecting it to a movable element that is to...  
WO/2012/130498A3
The invention relates to a control unit (40) for driving an electric load, in particular an electric machine, having a first and a second voltage terminal (46, 48) in order to supply the control unit (40) with electrical energy, a capaci...  
WO/2012/136212A3
A method for controlling an electric motor (2) is suggested, wherein at least one design limit of the electric motor (2) is complied with by controlling an increase and/or a decrease of the rotational speed of the electric motor (2).  
WO/2013/074358A1
A power converter includes an active front end (AFE) that is coupled by a dc link stage to a plurality of H-bridge inverters. One or more multi-phase electromagnetic energy conversion devices, such as transformers or electric machines, w...  
WO/2013/067479A1
Embodiments may disclose a safety system for controlling an operation of a machine operated by an operator wearing an article of luminescent clothing, the system including a luminescent sensor configured to emit ultraviolet light toward ...  
WO/2013/064928A1
A system and method for stopping a wind turbine in a battery charging circuit includes a step to terminate battery charging by opening a first switch between an electrical generator coupled to the wind turbine and the battery. A second s...  
WO/2013/060652A1
The invention relates to a device for controlling the connection/disconnection of the power supply of a windscreen wiper motor (WM) of a motor vehicle. This device comprises at least one quick disconnect switching circuit (1) inserted be...  
WO/2013/059915A1
A method of operating an electric motor having a motor assembly that includes a rotor and a stator. The method includes providing the electric motor in a neutral state, and from the neutral state, determining whether to operate the elect...  
WO/2013/049302A2
Braking current generated by an electrical motor on mining equipment during a retard interval is switched through one or more grid resistors that are liquid cooled. Under low ambient temperatures, a heating current can be switched throug...  
WO/2013/034253A1
The invention relates to a drive assembly for the motorized adjustment of an adjusting element (1) of a motor vehicle, wherein at least one drive (2) having an electrical drive motor (3), in particular a direct current motor, and a drive...  
WO/2013/025753A2
A system for operating a compressor. The system includes a motor, an inverter bridge, a voltage detection circuit, and a controller. The motor has a stator and a rotor. The inverter bridge is configured to provide a voltage to the stator...  
WO/2013/020544A1
The invention relates to a method for operating an electric motor in a generator mode, said electric motor being connected to at least three phases of a power supply network. An energy that is to be fed back into the power supply network...  
WO/2013/015791A1
An electric motor system having a power supply, an electric motor connected to the power supply, an object driven by the motor having a range of motion and a substantially neutral position within the range of motion, a power sensor confi...  
WO/2012/020348A3
An electric motor comprising a stator having a plurality of coils, a rotor having a plurality of permanent magnets and a controller that is arranged to provide a voltage to the plurality of coils to generate a current through the coils t...  

Matches 201 - 250 out of 13,536