Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 31,988

Document Document Title
WO/2014/149355A3
A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include an alternating current to direct current (...  
WO/2014/147659A1
This field control device (400) for a synchronous rotary machine (500) has the following: a target-operating-condition input unit (110); a first subtraction unit (121) that subtracts a final-control-quantity feedback value from an inputt...  
WO/2014/149355A2
A load commutated inverter (LCI) drive system for a synchronous electrical machine is provided. The system may include a first supply bridge and a second supply bridge, each of which may include an alternating current to direct current (...  
WO/2014/141527A1
The voltage amplification factor during rapid deceleration control for a motor is set to a value obtained by adding a voltage amplification factor calculated using a prescribed function and a low pass filter with reference to the voltage...  
WO/2014/140414A1
The invention relates to an arrangement for filtering common- mode interference. The arrangement comprises a power bridge (5, 6) connected between an AC voltage circuit (1, 4) and a DC voltage circuit (2), which power bridge comprises co...  
WO/2014/146048A2
Methods and compositions for the efficient and accurate determination of susceptibility of a hepatitis C virus (HCV) or HCV population to interferon (IFN), ribavirin (RBV), nucleoside inhibitor (NI), 2'C-methyl adenosine (2'CMeA), sofosb...  
WO/2014/145497A2
According to one or more disclosed embodiments, a plurality of data inputs are received from a plurality of information sources regarding one or more investment portfolios. Also, a proposed change to at least one of the investment portfo...  
WO/2014/135903A3
A drive circuit for a brushless motor that comprises power lines for carrying an AC voltage, an inverter comprising one or more legs connected in parallel across the power lines, and a controller. Each leg of the inverter is connected to...  
WO/2014/136761A1
In the context of control using a circular locus method, the present invention maintains a switching pattern for detecting a line current for at least a minimum constraint duration while maintaining a magnetic flux over an entire control...  
WO/2014/136485A1
The present invention reliably detects a shunt current and stably controls a multi-phase AC motor. A PWM waveform generator (46) generates, on the basis of a current value detected by a current detector (42), a plurality of PWM waveforms...  
WO/2014/136142A1
The present invention provides a system for driving an AC motor, the system for driving an AC motor being capable of trading power between a current busbar and a storage device using the voltage value of the current busbar without provid...  
WO/2014/132766A1
A motor control device is provided with: a current command value calculation means which, on the basis of a torque command value inputted from outside and the rotation speed of a motor, calculates a basic current command value; a first c...  
WO/2014/133026A1
A speed-sensorless motor starting device (100) for starting a motor, provided with: a modular multilevel cascade inverter (1) of the double star chopper cell type; a current-command-value generation means (31) for generating a current co...  
WO/2014/132731A1
An inverter device for controlling a permanent magnet motor is provided with: a voltage vector calculation unit that outputs a voltage command; a stabilizing compensation calculation unit that calculates a correction amount for reducing ...  
WO/2014/132385A1
Provided are a rotating machine and a rotating machine drive system for use in a six-phase drive, wherein the utilization rate of a semiconductor switching element within an inverter is improved. This rotating machine is characterized in...  
WO/2014/128947A1
The purpose of the present invention is to provide a method for detecting current differential values with high accuracy, to accomplish position-sensorless control of an alternating current motor. The control device for an alternating cu...  
WO/2014/128887A1
To smoothly switch control without changing speed or torque, in a speed range in which control switching is performed or a speed range adjacent to said range in which sensorless vector control is performed, sudden changes in excitation c...  
WO/2014/128001A3
The invention relates to a domestic appliance (1), comprising: a drive motor (4) designed as a brushless direct-current motor for driving a component (2); an inverter (5) for controlling the drive motor (4), wherein the inverter (5) comp...  
WO/2014/125571A1
A method for controlling a motor control device comprises: detecting the amount of noise current that is generated in an inverter and that flows into a noise filter; sampling the detected values at an interval of a carrier frequency; det...  
WO/2014/126893A1
At least one example embodiment discloses a drive system (100) including a motor (155) including a rotor, the motor (155) configured to receive a measured current, a controller (102) configured to generate a voltage for the motor (155) a...  
WO/2014/127090A2
A system and method for capturing current information for a power converter is disclosed. The current monitoring system includes a control system operably connected to a circuit having a plurality of semiconductor switches that are contr...  
WO/2014/123804A3
The present invention is directed to a load bearing direct-drive system and a variable process control system for efficiently managing the operation of fans in a cooling system such as a wet-cooling tower, air-cooled heat exchanger (ACHE...  
WO/2014/123713A3
A system or method controlling a variable speed drive based on PWM techniques, wherein a first PWM method is used when the input current is less than a predetermined threshold value, for higher efficiency and lower total harmonic distort...  
WO/2014/118958A1
A demagnetization diagnosis device for a permanent magnet synchronous motor diagnoses the presence or absence of demagnetization by comparing the magnetic flux of a permanent magnet synchronous motor estimated by a suitable magnetic flux...  
WO/2014/119492A1
Provided is a highly practical synchronous motor control device for an electric automobile that is capable of suppressing a torque ripple through simple arithmetic operations. A synchronous motor control device (1) for controlling a sync...  
WO/2014/119125A1
Provided is a highly reliable step-out detection method which can be unaffected by noise without use of a position detector in a power conversion device for controlling the drive of a synchronous motor. A power conversion device comprise...  
WO/2014/119054A1
Provided is an inverter control device capable of high-speed application of the results of computation for a PLC portion to the operation control of an inverter without use of a high-end CPU. A drive control means (1) operates an inverte...  
WO/2014/116627A1
Variable frequency drive active harmonic mitigation controls and diagnostics are disclosed. Exemplary controls and diagnostics include operating a variable frequency drive including converting an AC input line voltage to a DC voltage, ge...  
WO/2014/115498A1
A highly efficient and reliable power conversion method for converting an input single-phase AC voltage into an output two-phase AC voltage, the power conversion method comprising: receiving the input voltage (in); converting the input v...  
WO/2014/115446A1
Provided is a motor control system that can suppress production costs and suppress the occurrence of unexpected excessive torque, and continues system operation as much as possible even when the diagnosis results of a monitoring device a...  
WO/2014/116764A1
Temperature value determination of at least one variable frequency drive component is provided. In one form, a method includes providing a variable frequency drive that includes a first component in thermal communication with a second co...  
WO/2014/116760A1
Operation of a variable frequency in a manner configured to avoid overheating is provided. In one form, a method includes providing a variable frequency drive that includes a switching device in thermal communication with a heat sink inc...  
WO/2014/115626A1
This induction motor control device, which sets a motor torque command value on the basis of vehicle information and controls an induction motor connected to the drive wheels, calculates a first torque current command value and a first e...  
WO/2014/116761A1
Diagnostic and/or control methods, systems and apparatuses for variable frequency drives are disclosed. The variable frequency drive may be controlled by a controller that may conduct one or more tests or evaluations. The tests or evalua...  
WO/2014/112109A1
A control device (100) for a vehicle motor controls a motor (MG1, MG2) capable of achieving a plurality of characteristics where the upper limits for the output of torque are mutually different. The control device for a vehicle motor com...  
WO/2014/108498A1
The invention relates to an electromotive drive having a frequency converter, which is connected to a power supply (31) on the mains side, and having an electric motor (37), which is connected to the frequency converter. According to the...  
WO/2014/107802A1
A method and system for controlling the power factor of induction machines connected to power distribution grids are provided. In some embodiments, the method can comprise inserting an adjustable voltage source in series with one or more...  
WO/2014/106894A1
The electric power conversion device according to the present invention is provided with a rectifier for rectifying an alternating-current voltage supplied from an alternating-current power source, a first smoothing capacitor and second ...  
WO/2014/104164A1
A motor control device calculates a current command value on the basis of a target motor torque for an AC induction motor, and controls an inverter on the basis of a current command value obtained by correcting the calculated current com...  
WO/2014/105771A3
A load control device to control current flow to an AC load (10) includes a circuit (20) having line-side switche (22, 24, 26)s and floating-neutral side switches (28, 30, 32), along with a controller (46) connected to the circuit that i...  
WO/2014/103586A1
This motor control device calculates, on the basis of the target motor torque of an AC induction motor, a command value of the AC voltage outputted from the inverter, and controls the inverter on the basis of the command value of the AC ...  
WO/2014/097918A1
A control device (50) for controlling the drive of a brushless motor (3) configured with four poles and 24 slots, the control device (50) having: a fundamental-current calculation unit (52) for calculating a fundamental-wave current indi...  
WO/2014/097804A1
An inverter device comprises: a three-phase inverter wherein each phase includes a switching element near a high potential and a switching element near a low potential; a control unit capable of two-phase modulation control for turning t...  
WO/2014/095236A3
The invention relates to a method for electrically connecting a converter (14) to an electrical machine (6) supplied with current by the converter (14), in which method a separate electrical connection (22) between the converter (14) and...  
WO/2014/091703A1
The present invention is provided with: a drum (51) having a rotational shaft having an angle with respect to the vertical direction; a drum motor (60) that holds a rotor (59) having a permanent magnet and that drives the drum (51); and ...  
WO/2014/092484A1
The present invention relates to a power-saving driver circuit for a motor, having power factor improvement which can charge a capacitor for power factor improvement by using a flyback voltage accumulated in coils of the motor, and can s...  
WO/2014/091581A1
This circuit irregularity detection apparatus is provided with: an interrupt signal generation unit for outputting the interrupt signal to a drive circuit for stopping the drive of the drive object on the basis of the interrupt signal; a...  
WO/2014/086299A1
An electronic switch, an electrical motor and a method for improving the efficiency of the electrical motor. The electronic switch comprises a power source, a voltage control unit and an information feedback unit, wherein the power sourc...  
WO/2014/087706A1
A motor drive device provided with a booster circuit in a converter, wherein a converter control unit (15) is provided with a command setting unit (20) and a switching control unit (30). The command setting unit (20) has a first command ...  
WO/2014/086005A1
A rectification traction apparatus and diesel multiple units with the rectification traction apparatus equipped. The rectification traction apparatus comprises a box body (1), a rectifier module (2) and an inverter module (3). The box bo...  

Matches 701 - 750 out of 31,988