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WO/2011/040169A1 |
A control device is provided with: a carrier frequency setting unit (52) that sets a frequency selected from among a plurality of carrier frequencies, individually, to each of a plurality of inverters; and a switching timing table (100) ...
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WO/2011/040159A1 |
Disclosed is a control device in which the computation cycle for internal processing done by a voltage-control unit is optimized and the computational load involved in controlling an AC motor is reduced. Said control device uses vector c...
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WO/2011/028895A2 |
A system (30) for managing energy consumption in a heave-compensating drawworks includes a power supply (40), a winch drum (28) connected to the power supply (40) so as to receive power from the power supply, a flywheel (52) connected to...
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WO/2011/024935A1 |
In the provided anomaly detection device for a permanent magnet synchronous electric motor, a magnet temperature anomaly detection unit (30) provided in a microcomputer (5) calculates the rate of change d(|Φml − Φmr|)/dt in the diffe...
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WO/2010/136369A1 |
The invention relates to a nacelle for receiving an aircraft engine (2), comprising a fixed tubular cowl and at least one mobile portion connected to the fixed cowl by a means for moving the mobile portion between a near position and a s...
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WO/2010/131361A1 |
A host device (1) is provided with a command pattern change section (8). A detector (3) is provided with a communication parameter change section (34). A motor drive controller (2) is provided with a communication parameter change sect...
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WO/2010/118646A1 |
A motor, control method thereof and clustered control system for multiple motors. The motor includes a stator, a rotor and a motor controller (2). The motor controller (2) is connected to a network interface circuit module NIC (3), which...
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WO/2010/116840A1 |
An induction motor group control system connects a magnetic energy regenerative switch (3) in series to an induction motor (2) directly driven by a commercial power supply, and controls the generation of reactive power in such a manner t...
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WO/2010/102998A1 |
The invention relates to a device for generating a torque on an output member (3) in response to a torque setpoint, comprising: a first driving member comprising at least one motor (1) with a first power, or small motor, with a shaft (2)...
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WO/2010/089225A1 |
The invention relates to an activation circuit for an electromagnetic gear brake, having a control unit (3), having a first shifting unit (4) that can be activated by the control unit (3), having a second, pulse width modulated shifting ...
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WO/2010/088009A1 |
A method for mapping a motion of a first object within a first motion path defined by a path planner based on a second motion path of a second object. The method includes creating the first motion path for the first object using the path...
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WO/2010/073866A1 |
In a hybrid drive device provided with an engine, drive wheels, first and second motors, and a transmission mechanism, the reliability of sensorless vector control of one of the motors is improved, the time required for determining the i...
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WO/2010/063512A2 |
The invention relates to a controller structure for more than two drive units (10) which are mechanically coupled to a movable element (1). The controller structure has a position measurement device (4) for determining an actual position...
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WO/2010/060777A2 |
The present invention deals with a system (10) and method for power distribution. The proposed system (10) comprises a plurality of generator systems (12, 14, 16, 18), each generator system (12, 14, 16, 18) comprising an alternating curr...
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WO/2010/050267A1 |
A vacuum cleaner is provided with a cleaner body (11) which contains electric blowers (15A, 15B), and a control means (16) which independently controls driving of the electric blowers (15A, 15B). The control means (16) is provided with ...
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WO/2010/046008A1 |
The invention relates to a drive assembly for motorized adjusting of an adjusting element (1) in a motor vehicle, wherein the drive assembly comprises two electric drives (2, 3) and a control device (4), wherein the drives (2, 3) act in ...
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WO/2010/020392A1 |
The present invention relates to an ac generator (DOG1) comprising a plurality of galvanically-isolated multi-phase stator windings (sometimes called poly-phase stator windings). Each stator winding has a plurality of coils and is connec...
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WO/2010/015112A1 |
A system for driving asynchronously multiple motors by one inverter (6) and for realizing frequency variation and speed adjusting of rotors includes a motor set (1), a rectifier set (2), a chopper set (3), an isolator set (4), a current ...
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WO/2010/008740A2 |
Apparatus, methods, and computer storage media provide for the establishment of a parallel motor controller architecture and the dynamic reconfiguration of the architecture to redirect power to various motors according to the changing po...
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WO/2009/158359A2 |
Some disclosed embodiments include apparatus and methods for transferring existing data from a source motor to a target motor. The existing data can be transferred from the source motor to the target motor by retrieving the existing data...
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WO/2009/135342A1 |
A system for realizing simultaneously frequency variation and speed adjusting of rotors and making one inverter (6) drive asynchronously four motors is composed of a motor unit (1), a rectifier unit (2), a current limiter unit (3), a cho...
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WO/2009/128216A1 |
Provided is a motor device comprising a motor and a drive control circuit for controlling driving of the motor. The drive control circuit is provided with a control unit for generating a control signal for controlling the rotation of the...
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WO/2009/119246A1 |
Provided is a control system of a dynamo electric machine wherein a torque generated from a dynamo electric machine serving as a motor is limited when a failure of a voltage conversion section is detected for the purpose of protecting a ...
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WO/2009/101729A1 |
If any short-circuit failure occurs in an inverter (14), then a motor generator (MG2) is used to execute a safety driving. If the rotational speed of a motor generator (MG1) calculated from a detection value of a position sensor (22) exc...
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WO/2009/095094A1 |
The invention relates to a rectifier arrangement (2) having at least three independent drive units. According to the invention, said three drive units comprise two four-phase rectifiers (41, 42) and three electric motors (6, 8), wherein ...
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WO/2009/091940A1 |
A power distribution system is provided for supplying power to a variable speed motor for rotating a shaft. The system comprises a variable speed prime mover adapted to generate an A/C output having a variable frequency corresponding to ...
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WO/2009/087915A1 |
It is possible to easily detect a failure of each of AC motors electrically connected in parallel and driven by a single motor drive device. More specifically, by detecting a power cable disconnection or grounding, it is possible to prot...
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WO/2009/083031A1 |
The present invention relates to servo controller for controlling a plurality of motors including a master motor (M1 ) and a slave motor (M2) cooperatively driving a movable member. The servo controller is configured to control the maste...
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WO/2009/084358A1 |
Provided is a rotating electric machine control system which, in a hybrid system including a pair of rotating electric machines for receiving power supply from a common battery, one rotating electric machine serving as a generator and th...
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WO/2009/084359A1 |
Provided is a rotating electric machine control system which, in a hybrid system including a pair of rotating electric machines for receiving power supply from a common battery, one rotating electric machine serving as a generator and th...
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WO/2009/081840A1 |
A motor unit which, when any of motors has wire breakage, does not continue to drive a driven member in that abnormal condition. The motor unit has the motors. The output shaft of the motors is engaged with the single driven member. The ...
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WO/2009/074640A1 |
The invention relates to a circuit for controlling a number of DC motors (M1, M2) capable of being controlled independently of one another, comprising, for each motor (M1, M2), an H-bridge (1A, 1B) made up of a first branch (3) and of a ...
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WO/2009/056949A2 |
An electric drive comprises a plurality of synchronous motors (2, 3, 4), a line (5) for powering the motors (2, 3, 4), a control unit (6) that powers the line (5) inside it to modulate supply voltage of the motors (2, 3, 4); the control ...
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WO/2009/058048A1 |
The invention relates to methods for controlling the rotational speed of the shafts of actuating mechanisms. The inventive device comprises a stator which is secured on an input shaft and electrically connected to a current-transmitting ...
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WO/2009/057545A1 |
To provide a control method wherein only a single general external interface is used to successfully communicate with the driven spindle-specific control parts of multi-spindle movement drivers. In the multi-spindle movement driver contr...
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WO/2009/054727A2 |
The present invention relates to a system for controlling rotational speed on a rotating process machine (P), which for example is a turbine or a propeller, where the rotating process machine (P) is connected to at least one motor (M1) a...
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WO/2009/049603A2 |
The invention relates to a control system for solar installations having at least one solar module which can pivot about at least one pivoting axis and has an associated drive device for readjusting the solar module as a function of the ...
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WO/2009/047729A2 |
A motor assembly of multiple motors for use in driving a shared downhole load within a well. In particular, the assembly may employ substantially constant adjustable speed motors. These may include permanent magnet synchronous machine mo...
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WO/2009/028009A1 |
A control technique for keeping a revolution with the same or specific relationship by giving a feedback of the revolution to each fan in order to reduce “beating sound” arising due to rotational errors of each fan in using a plurali...
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WO/2009/010147A1 |
Disclosed is a system comprising at least two regulated drive units, especially a converter-fed electric motor. Each drive unit encompasses a controller to which an input variable is fed. A setpoint can be predefined for respective setpo...
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WO/2009/010246A2 |
The invention relates to a method for controlling a production machine, especially a printing press, which guides a substrate and has at least two units that are each provided with an independent drive, in case of a fault in a power supp...
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WO/2009/001452A1 |
A controller for an electric vehicle capable of sensing an idle running/slipping phenomenon during high-speed running in particular, to appropriately control the idle running/slipping. An idle running control unit (1) is equipped with a ...
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WO/2008/149447A1 |
An electric motor controller equipped with a controller section for controlling a plurality of inverters provided corresponding to each of a plurality of alternating-current electric motors, wherein processing segments of each arithmetic...
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WO/2008/145647A1 |
The invention relates to a circuit arrangement for the selective operation of at least two electric machines (1, 2) that are each supplied via a plurality of phase lines, comprising: - one voltage protection module (5) for limiting an in...
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WO/2008/136146A1 |
In a driving device for motors of rolling mill rolls, a control system corrects an asymmetry property of upper and lower rolling mill roll drive systems of a twin-drive method rolling machine where upper and lower rolling mill rolls are ...
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WO/2008/133240A1 |
Provided is a fan control system which suppresses increase of start-up load, which is due to a fan previously started rotation and applied on fans other than the fan previously started rotation, at the time of starting a plurality of fan...
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WO/2008/130560A1 |
A mover (344) moving a stage (238) along a first axis and about a second axis includes a magnetic component (454), and a conductor component (456). The magnetic component (454) includes one or more magnets (454D) that are surrounded by a...
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WO/2008/127826A1 |
A control apparatus for multiplexing a single distributed control amplifier to control multiple axes of motion in a multi-axis machine. In one example, the control apparatus comprises a distributed control motor amplifier, a first motor ...
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WO/2008/126629A1 |
An electric vehicle includes a control unit (76) having overcurrent generation judgment means (84), inverter selection means (86), and inverter drive control means (88). The overcurrent generation judgment means (84) judges whether an ov...
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WO/2008/121051A1 |
The invention relates to a method in a milking system for creating a required vacuum level, the milking system comprising at least two variable speed vacuum pumps P1, P2. The method comprises the steps of: utilizing a first variable spee...
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