| SCHNEIDER TOSHIBA INVERTER EUROPE SAS Patent applications |
| Patent application number | Title | Published |
|---|
| 20120134183 | POWER CONVERTER WITH A CONTROLLED CURRENT SOURCE AND CONNECTED IN SINGLE-PHASE MODE - The invention relates to a control method implemented in a power converter, such as, for example, a variable speed drive. This control method is designed to make the power converter operate when the latter is connected to the network in single-phase mode. The power converter notably includes a controlled current source connected in series to its DC power supply bus. This controlled current source includes an electronic converter ( | 05-31-2012 |
| 20120113691 | POWER CONVERTER WITH CONTROLLED CURRENT SOURCE - A power converter including a rectifier stage connected to plural phases of a network delivering an input current at a determined fundamental frequency, a DC power supply bus and a bus capacitor connected to the DC power supply bus. The converter includes a controlled current source situated on the DC power supply bus, the current source making it possible to control a rectifier current, flowing on the DC power supply bus, and a controller for the controlled current source to control a rectifier current, flowing on the DC power supply bus. The controller is configured to implement a regulation loop into which are injected a first harmonic and a second harmonic synchronized respectively at six times and twelve times the fundamental frequency of the input current delivered by the network, the amplitude and phase of these harmonics being determined to limit the THDi and the PWHD. | 05-10-2012 |
| 20120081932 | CONTROL METHOD AND SYSTEM FOR REDUCING THE COMMON-MODE CURRENT IN A POWER CONVERTER - The invention relates to a control method and system intended to reduce the common-mode current in a power converter which comprises a rectifier stage ( | 04-05-2012 |
| 20120019987 | CONTROL ASSEMBLY COMPRISING A VARIABLE SPEED DRIVE AND A CIRCUIT BREAKER - A control assembly including: a variable-speed drive for controlling an electric charge, the variable speed drive including a rear attachment mechanism for attaching same to a mounting and a power terminal board receiving a power via power lines; and an electrical interrupter connected to the power lines to control or protect the variable-speed drive. The electrical interrupter is electrically connected to the power terminal board of the variable-speed drive, and the control assembly includes attachment means for mechanically attaching the electrical interrupter to the variable-speed drive only. | 01-26-2012 |
| 20110249479 | METHOD OF CONTROLLING AN INVERTER OF NPC TYPE - The invention relates to a method of controlling a multilevel inverter of NPC (Neutral Point Clamped) type. The method consists in particular in regulating the electrical potential of the mid-point when the inverter operates at full voltage, that is to say in overmodulation. In this case, the method firstly consists in determining the position of the control voltage vector (U) in one of the six identical triangles covering the hexagonal vector space and thereafter in decomposing the control voltage vector (U) in the triangle by taking account of the control combinations, defined in this triangle, for the switching arms. | 10-13-2011 |
| 20110199801 | ENERGY RECOVERY DEVICE IN A VARIABLE-FREQUENCY DRIVE - A variable-frequency drive that includes a DC power supply bus with a positive line and a negative line, and an inverter module powered by the DC bus for supplying a variable voltage to an electric load. The inverter includes a first DC/DC converter including output terminals connected in series on the positive line of the DC bus, a second DC/DC converter including input terminals connected between the positive line and the negative line of the DC bus, a filtering capacitor connected in parallel to the input terminals of the first converter and to the first output terminals of the second converter, and an electric power storage module connected in parallel to the second output terminals of the second converter. | 08-18-2011 |
| 20110166697 | METHOD AND DEVICE FOR CONTROLLING A LIFTING LOAD - A control method implemented in a variable speed drive for controlling a lifting load, the load control being carried out according to a first control profile that includes the following: accelerating the load with a view to reaching a first speed, decelerating the load upon receiving a deceleration order, and stopping the load. When the load receives a deceleration order when it is at a current speed lower than the first speed, the method determines a second speed lower than the first speed and higher than the current speed, the second speed having an optimal value for minimizing the load running time until stopping. | 07-07-2011 |
| 20110134675 | CURRENT-SOURCE POWER CONVERTER USING NORMALLY-ON FIELD EFFECT TRANSISTORS - The invention relates to a current-source power converter comprising, in its rectifier module ( | 06-09-2011 |
| 20110101900 | METHOD FOR DETERMINING THE INDUCTANCES OF A PERMANENT MAGNET SYNCHRONOUS MACHINE - The invention relates to a control method implemented in a variable speed drive for determining the inductances (Ld, Lq) of a permanent magnet synchronous machine comprising three phases (a, b, c), each oriented along a direction, a stator, and a rotor. For each phase, one after the other, said method includes steps of: applying, along the direction of the phase (a, b, c), a voltage vector (V | 05-05-2011 |
| 20110057587 | ENERGY-RECOVERY DEVICE IN A VARIABLE SPEED DRIVE - The invention relates to a variable speed drive comprising a direct-current power bus having a positive line ( | 03-10-2011 |
| 20110006838 | DEVICE FOR CONTROLLING A POWER TRANSISTOR - The invention relates to a gate control device for a JFET-type transistor comprising a gate, a drain and a source, said device comprising:
| 01-13-2011 |
| 20100295523 | POWER CONVERTER USING A RECTIFIER WITH NORMALLY ON TRANSISTORS - The invention relates to a power converter comprising, in particular, a rectifier comprising at least one switching leg provided with two transistors (T | 11-25-2010 |
| 20100264861 | METHOD FOR DETERMINING THE POSITION OF THE FLUX VECTOR OF A MOTOR - The invention relates to a method for determining the position of a rotor flux vector of an electric motor (M), comprising a step of injecting a first current vector into a first reference frame (x | 10-21-2010 |
| 20090213513 | SPEED CONTROLLER INCLUDING A DEVICE FOR PROTECTION AGAINST OVERCURRENTS AND OVERVOLTAGES - The invention relates to a speed controller comprising:
| 08-27-2009 |
| 20090212726 | DEVICE FOR PROTECTING A SPEED CONTROLLER AGAINST OVERCURRENT - The invention relates to a speed controller comprising:
| 08-27-2009 |
| 20080294360 | METHOD FOR DETECTING THE LOSS OF ONE OR MORE PHASES IN A PERMANENT-MAGNET SYNCHRONOUS ELECTRIC MOTOR - The present invention relates to a method implemented in a speed controller ( | 11-27-2008 |
| 20080251589 | METHOD AND SYSTEM FOR MANAGING THE TEMPERATURE IN A SPEED CONTROLLER - The present invention relates to a method for managing the temperature implemented in a speed controller ( | 10-16-2008 |
