Patents by Inventor Andre Veltman
Andre Veltman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11890945Abstract: An electric multi-mode drive system (400), a method for operating the same, a vehicle (110) and a track (401). The system is arranged for operating at one part (402) of the track (401), at a station (410; 411), an electric Linear Doubly Fed Motor, LDFM, (310) for launching the vehicle (110), and for operating at another part (403) of the track (401), between stations (410; 411), a further electric motor (320; 330; 340; 350), not an LDFM, arranged for at least one of accelerating, coasting and restarting movement of the vehicle (110) after launching. Electric power for operating the further electric motor (320; 330; 340; 350), is provided by an on-board rechargeable electrical energy storage device. With the LDFM (310), sufficient power is generated for accelerating the vehicle (110), and recharging the on-board electrical energy storage device during standstill, braking and/or launching.Type: GrantFiled: November 27, 2019Date of Patent: February 6, 2024Assignee: ENGIE ELECTROPROJECT B.V.Inventor: André Veltman
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Patent number: 11365620Abstract: A method of and a device, borehole drilling equipment and a computer program product for estimating at least one of down hole speed and down hole torque of borehole drilling equipment while drilling a borehole in an earth formation. The borehole equipment comprising a rotational drive system, a drill string, a bottom hole assembly comprising a drill bit, a top end coupled to the rotational drive system, and a speed controller arranged for controlling rotational top end drive speed by commanding a top end drive torque. The method being performed in a computer based on a two-port spectral domain transfer matrix computational model of the borehole drilling equipment. While drilling, rotational top end drive speed and top end drive torque are obtained and down hole speed and down hole torque of the borehole drilling equipment are calculated by reducing spectral bandwidth of and applying a time delay term to the calculations enabling a causal time domain solution.Type: GrantFiled: May 30, 2017Date of Patent: June 21, 2022Assignee: ENGIE ELECTROPROJECT B.V.Inventor: Andre Veltman
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Publication number: 20220032781Abstract: An electric multi-mode drive system (400), a method for operating the same, a vehicle (110) and a track (401). The system is arranged for operating at one part (402) of the track (401), at a station (410; 411), an electric Linear Doubly Fed Motor, LDFM, (310) for launching the vehicle (110), and for operating at another part (403) of the track (401), between stations (410; 411), a further electric motor (320; 330; 340; 350), not an LDFM, arranged for at least one of accelerating, coasting and restarting movement of the vehicle (110) after launching. Electric power for operating the further electric motor (320; 330; 340; 350), is provided by an on-board rechargeable electrical energy storage device. With the LDFM (310), sufficient power is generated for accelerating the vehicle (110), and recharging the on-board electrical energy storage device during standstill, braking and/or launching.Type: ApplicationFiled: November 27, 2019Publication date: February 3, 2022Inventor: André VELTMAN
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Publication number: 20200325763Abstract: A method of and a device, borehole drilling equipment and a computer program product for estimating at least one of down hole speed and down hole torque of borehole drilling equipment while drilling a borehole in an earth formation. The borehole equipment comprising a rotational drive system, a drill string, a bottom hole assembly comprising a drill bit, a top end coupled to the rotational drive system, and a speed controller arranged for controlling rotational top end drive speed by commanding a top end drive torque. The method being performed in a computer based on a two-port spectral domain transfer matrix computational model of the borehole drilling equipment. While drilling, rotational top end drive speed and top end drive torque are obtained and down hole speed and down hole torque of the borehole drilling equipment are calculated by reducing spectral bandwidth of and applying a time delay term to the calculations enabling a causal time domain solution.Type: ApplicationFiled: May 30, 2017Publication date: October 15, 2020Inventor: Andre VELTMAN
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Patent number: 10389285Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: November 6, 2017Date of Patent: August 20, 2019Assignee: Texas Instruments IncorporatedInventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 10138721Abstract: A method for mitigating stick-slip oscillations in borehole equipment while drilling a borehole in an earth formation is described. The borehole equipment is modelled by a computational model for computer simulation. The model has elements representing a particular mechanical and physical behavior of the borehole equipment. In a simulated stick mode of the borehole equipment, physical quantities are loaded to the elements, which quantities represent an initial state of the borehole equipment prior to a transition from stick mode to slip mode. From a simulation of such transition, a time response of rotational speeds of a drive system and bottom hole assembly of the borehole equipment is recorded and a lower limit of the rotational speed of the drive system is determined for which the rotational driven speed of the bottom hole assembly is zero.Type: GrantFiled: October 24, 2012Date of Patent: November 27, 2018Assignee: ENGIE ELECTROPROJECT B.V.Inventor: Andre Veltman
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Publication number: 20180076749Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: November 6, 2017Publication date: March 15, 2018Inventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 9813005Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: July 1, 2016Date of Patent: November 7, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 9708900Abstract: A method of and a device for computer controlled determination of operational parameters of a computational model of borehole equipment for drilling a borehole in an earth formation are described. The borehole equipment has a rotational drive system, a drill string having a bottom hole assembly and a top end coupled to the rotational drive system, and a speed controller for controlling rotational drive speed of the drive system. The drive system is controlled such that a torque provided by the drive system while driving the drill string is varied over a time period. From the varying torque and rotational top end drive speed of the drill string an estimated torque-speed transfer function is obtained and matched with a torque-speed transfer function computed from the computational model of the borehole equipment. The operational parameters are determined from the matched estimated torque-speed transfer function and the computed torque-speed transfer function.Type: GrantFiled: December 20, 2013Date of Patent: July 18, 2017Assignee: Cofely Experts B.V.Inventor: Andre Veltman
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Publication number: 20160315572Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: July 1, 2016Publication date: October 27, 2016Inventors: David Patrick Magee, Andre Veltman, Jorge Zambada
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Patent number: 9413282Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: GrantFiled: September 15, 2014Date of Patent: August 9, 2016Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: David Patrick Magee, André Veltman, Jorge Zambada
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Publication number: 20150322766Abstract: A method of and a device for computer controlled determination of operational parameters of a computational model of borehole equipment for drilling a borehole in an earth formation are described. The borehole equipment has a rotational drive system, a drill string having a bottom hole assembly and a top end coupled to the rotational drive system, and a speed controller for controlling rotational drive speed of the drive system. The drive system is controlled such that a torque provided by the drive system while driving the drill string is varied over a time period. From the varying torque and rotational top end drive speed of the drill string an estimated torque-speed transfer function is obtained and matched with a torque-speed transfer function computed from the computational model of the borehole equipment. The operational parameters are determined from the matched estimated torque-speed transfer function and the computed torque-speed transfer function.Type: ApplicationFiled: December 20, 2013Publication date: November 12, 2015Inventor: Andre VELTMAN
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Publication number: 20150097500Abstract: A method of controlling an electric motor (motor) includes providing a processor having an associated memory storing a stator resistance (Rs) estimation (RSE) algorithm that is programmed to implement the RSE algorithm to execute steps including injecting a current waveform at an arbitrary frame of reference into the stator using a field-oriented-control (FOC) motor controller including an Id controller and an Iq controller, and measuring current and voltage values from the motor responsive to the injecting. The measured current and voltage values are then transformed into transformed current and voltage values in a d/q coordinate system. The transformed current and voltage values are low pass filtered to generate filtered d/q current and voltage values, and a value for Rs is estimated from the filtered d/q current and voltage values. The arbitrary frame of reference can be a time-varying frame of reference.Type: ApplicationFiled: September 15, 2014Publication date: April 9, 2015Inventors: DAVID PATRICK MAGEE, ANDRÉ VELTMAN, JORGE ZAMBADA
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Publication number: 20150037169Abstract: The fluid flow of a fluid displacement device (100) provided with an electric motor (120) may be set on the basis of a power and control unit (90). Thereto, a power circuit generally comprising an inverter (30), such as a frequency inverter, drives the electric motor (110), particularly with a driving voltage (D1). Voltage and current (A1, A2) in the electric motor (110) are sensed sensorless. Torque and rotation speed of the electric motor (110) are derived from said sensed voltage and current (A1, A2). A fluid flow of the fluid displacement device (110) is estimated in an estimator (15) based on said torque and rotation speed of the electric motor (120) and at least some fluid displacement device characteristics stored in a memory.Type: ApplicationFiled: March 15, 2013Publication date: February 5, 2015Inventors: André Veltman, Robert Beekmans
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Publication number: 20140284105Abstract: A method for mitigating stick-slip oscillations in borehole equipment while drilling a borehole in an earth formation is described. The borehole equipment is modelled by a computational model for computer simulation. The model has elements representing a particular mechanical and physical behavior of the borehole equipment. In a simulated stick mode of the borehole equipment, physical quantities are loaded to the elements, which quantities represent an initial state of the borehole equipment prior to a transition from stick mode to slip mode. From a simulation of such transition, a time response of rotational speeds of a drive system and bottom hole assembly of the borehole equipment is recorded and a lower limit of the rotational speed of the drive system is determined for which the rotational driven speed of the bottom hole assembly is zero.Type: ApplicationFiled: October 24, 2012Publication date: September 25, 2014Inventor: Andre Veltman
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Patent number: 8829812Abstract: A lighting system for operation with a dimmer circuit comprising a triac connected to a load. The load comprises a driver circuit for supplying current to a light source comprising one or more LEDs, the current being determined at least in part by an adjusted setpoint value. The system further comprises a setpoint filter circuit for obtaining a dimmer setpoint value determined at least in part by a setting of the dimmer circuit, and for generating an adjusted setpoint value. The sensitivity of the adjusted setpoint value to changes in the dimmer setpoint value is low at low values of the dimmer setpoint value.Type: GrantFiled: October 7, 2009Date of Patent: September 9, 2014Assignee: Koninklijke Philips N.V.Inventor: André Veltman
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Patent number: 8212494Abstract: The invention relates to a dimmer triggering circuit (12) for triggering a dimmer in an alternating current network. The dimmer has a voltage-level detector (15), and a bipolar current source circuit (18). The voltage-level detector (15) detects whether an absolute value of an input voltage of the dimmer triggering circuit is below a threshold value. The bipolar current source circuit (18) provides a current if the voltage detected by the voltage-level detector (15) is below the threshold value. If the voltage detected is not below the threshold value, the bipolar current source circuit is deactivated. The dimmer triggering circuit (12), in operation, dissipates an average power less than 100 mW.Type: GrantFiled: June 26, 2008Date of Patent: July 3, 2012Assignee: Lemnis Lighting Patents Holding B.V.Inventor: André Veltman
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Publication number: 20100090618Abstract: A lighting system for operation with a dimmer circuit comprising a triac connected to a load. The load comprises a driver circuit for supplying current to a light source comprising one or more LEDs, the current being determined at least in part by an adjusted setpoint value. The system further comprises a setpoint filter circuit for obtaining a dimmer setpoint value determined at least in part by a setting of the dimmer circuit, and for generating an adjusted setpoint value. The sensitivity of the adjusted setpoint value to changes in the dimmer setpoint value is low at low values of the dimmer setpoint value.Type: ApplicationFiled: October 7, 2009Publication date: April 15, 2010Applicant: LEMNIS LIGHTING IP GMBHInventor: André Veltman
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Publication number: 20090251059Abstract: The invention relates to a dimmer triggering circuit (12) for triggering a dimmer in an alternating current network. The dimmer has a voltage-level detector (15), and a bipolar current source circuit (18). The voltage-level detector (15) detects whether an absolute value of an input voltage of the dimmer triggering circuit is below a threshold value. The bipolar current source circuit (18) provides a current if the voltage detected by the voltage-level detector (15) is below the threshold value. If the voltage detected is not below the threshold value, the bipolar current source circuit is deactivated. The dimmer triggering circuit (12), in operation, dissipates an average power less than 100 mW.Type: ApplicationFiled: June 26, 2008Publication date: October 8, 2009Applicant: LEMNIS LIGHTING PATENT HOLDING B.V.Inventor: Andre Veltman
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Patent number: 6864660Abstract: A method and a device for realizing an effective value of a quantity to be varied in an electrical load connected to a multi-phase switchable DC/AC frequency convertor comprising a plurality of controllable switches. The value is realized by varying a current or a voltage delivered by the DC/AC frequency convertor through suitable switching of the switches thereof, and wherein the quantity exhibits a load angle which, averaged in time, leads or lags the voltage or current being delivered.Type: GrantFiled: May 13, 2003Date of Patent: March 8, 2005Assignee: GTI Electroproject B.V.Inventor: Andre Veltman