Patents by Inventor Jean-Paul Lavieville
Jean-Paul Lavieville 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).
-
Patent number: 10498258Abstract: A modular multi-level power converter device including an AC output, including a modular multi-level DC/AC converter including a plurality of arms in parallel, ends of which define input terminals, each arm including two lines of modules in series, each switching module including a pair of switches in series, mounted on terminals of an energy-storage device, the DC/AC converter adjusting frequency at an output of the converter device. The device further includes a converter including a DC output, including two output terminals connected to the input terminals of the DC/AC converter, the converter including a DC output adjusting amplitude at an output of the converter device, the DC/AC converter further including a mechanism controlling the switches of the modules, which apply a full-wave command to the switches during at least one time interval, the modules of a single line being in a same state simultaneously.Type: GrantFiled: April 15, 2016Date of Patent: December 3, 2019Assignee: SCHNEIDER TOSHIBA INVERTER EUROPE SASInventors: Jean-Paul Lavieville, Cong Martin Wu
-
Publication number: 20180131291Abstract: A modular multi-level power converter device including an AC output, including a modular multi-level DC/AC converter including a plurality of arms in parallel, ends of which define input terminals, each arm including two lines of modules in series, each switching module including a pair of switches in series, mounted on terminals of an energy-storage device, the DC/AC converter adjusting frequency at an output of the converter device. The device further includes a converter including a DC output, including two output terminals connected to the input terminals of the DC/AC converter, the converter including a DC output adjusting amplitude at an output of the converter device, the DC/AC converter further including a mechanism controlling the switches of the modules, which apply a full-wave command to the switches during at least one time interval, the modules of a single line being in a same state simultaneously.Type: ApplicationFiled: April 15, 2016Publication date: May 10, 2018Applicant: Schneider Toshiba Inverter Europe SASInventors: Jean-Paul LAVIEVILLE, Cong Martin WU
-
Patent number: 9735664Abstract: A multi-level power converter comprising: n input stages (Ein_n), n being at least equal to 1, each input stage comprising n+1 identical input converters (CONVx_En) connected together, the input converters (CONVx_En) exhibiting an identical topology, chosen from among the architectures of the NPC (Neutral Point Clamped), ANPC (Active Neutral Point Clamped), NPP (Neutral Point Piloted) and SMC (Stacked Multicell Converter); an output stage (Eout) connected to the input stage of rank 1 and comprising an output converter (CONVs) supplied with a differential voltage (Vfloat) resulting from a first electrical potential applied to the output of a first input converter of the input stage of rank 1 and from a second electrical potential applied to the output of a second input converter of the input stage of rank 1, the output converter (CONVs) exhibiting a topology chosen from among an architecture with floating capacitor (FC), SMC (Stacked Multicell Converter), NPC (Neutral Point Clamped), NPP (Neutral Point PilotedType: GrantFiled: January 16, 2014Date of Patent: August 15, 2017Assignee: SCHNEIDER TOSHIBA INVERTER EUROPE SASInventor: Jean-Paul Lavieville
-
Patent number: 9571004Abstract: This is a multi-level converter comprising at least one arm (B) formed of n stages (Et1, Et2, . . . , Etn) mounted in cascade. The first stage (Et1) comprises a single switching structure (Ce10) with four voltage levels and an ith stage (i lying between two and n) comprises i identical switching structures (Cei1, Cei2, . . . Ceii) with four voltage levels, mounted in series. Each switching structure with four voltage levels comprises a cell of floating capacitor type (T1, T2, T1?, T2?, C12), two basic switching cells (T3u, T3?u; T3l, T3?l) and a capacitive divider bridge (C9, C10, C11), the basic switching cells being connected between the voltage divider bridge and the cell of floating capacitor type.Type: GrantFiled: April 10, 2015Date of Patent: February 14, 2017Assignee: SCHNEIDER TOSHIBA INVERTER EUROPE SASInventor: Jean-Paul Lavieville
-
Patent number: 9553516Abstract: This is a multi-level converter comprising one or more arms (B) to each be connected between a voltage source (VDC) and a current source (I). Each arm comprises two stages (E1, E2) in cascade, the first to be connected to the voltage source (VDC), the second to be connected to the current source (I). The first stage (Et1) comprises several elementary stages (E1n, . . . , E12, E11) of rank one to n in cascade, the elementary stage (E11) of rank one being connected to the second stage (Et2) and the elementary stage (E1n) of rank n having to be connected to the voltage source (VDC). Each elementary stage (E1n) comprises a pair of identical cells of NPC type (Cen1, Cen2) in series, the connection being direct in the elementary stage of rank 1, the connection being made via n?1 capacitive cells ((Can(1), . . . , Can(n?1)) for each elementary stage of rank greater than one, the second stage (Et2) comprising a floating capacitor cell (Ce10).Type: GrantFiled: March 2, 2015Date of Patent: January 24, 2017Assignee: SCHNEIDER TOSHIBA INVERTER EUROPE SASInventor: Jean-Paul Lavieville
-
Publication number: 20150333658Abstract: This is a multi-level converter comprising at least one arm (B) formed of n stages (Et1, Et2, . . . , Etn) mounted in cascade. The first stage (Et1) comprises a single switching structure (Ce10) with four voltage levels and an ith stage (i lying between two and n) comprises i identical switching structures (Cei1, Cei2, . . . Ceii) with four voltage levels, mounted in series. Each switching structure with four voltage levels comprises a cell of floating capacitor type (T1, T2, T1?, T2?, C12), two basic switching cells (T3u, T3?u; T3l, T3?l) and a capacitive divider bridge (C9, C10, C11), the basic switching cells being connected between the voltage divider bridge and the cell of floating capacitor type.Type: ApplicationFiled: April 10, 2015Publication date: November 19, 2015Applicant: SCHNEIDER TOSHIBA INVERTER EUROPE SASInventor: Jean-Paul LAVIEVILLE
-
Publication number: 20150311776Abstract: The invention relates to a multi-level power converter comprising:—n input stages (Ein_n), n being at least equal to 1, each input stage comprising n+1 identical input converters (CONVx_En) connected together, the input converters (CONVx_En) exhibiting an identical topology, chosen from among the architectures of the NPC (Neutral point Clamped), ANPC (Active Neutral Point Clamped), NPP (Neutral Point Piloted) and SMC (Stacked Multicell Converter),—an output stage (Eout) connected to the input stage of rank 1 and comprising an output converter (CONVs) supplied with a differential voltage (Vfloat) resulting from a first electrical potential applied to the output of a first input converter of the input stage of rank 1 and from a second electrical potential applied to the output of a second input converter of the input stage of rank 1, the output converter (CONVs) exhibiting a topology chosen from among an architecture with floating capacitor (FC), SMC (Stacked Multicell Converter), NPC (Neutral Point Clamped), NType: ApplicationFiled: January 16, 2014Publication date: October 29, 2015Applicant: Schneider Toshiba Inverter Europe SASInventor: Jean-Paul LAVIEVILLE
-
Publication number: 20150288284Abstract: This is a multi-level converter comprising one or more arms (B) to each be connected between a voltage source (VDC) and a current source (I). Each arm comprises two stages (E1, E2) in cascade, the first to be connected to the voltage source (VDC), the second to be connected to the current source (I). The first stage (Et1) comprises several elementary stages (E1n, . . . , E12, E11) of rank one to n in cascade, the elementary stage (E11) of rank one being connected to the second stage (Et2) and the elementary stage (E1n) of rank n having to be connected to the voltage source (VDC). Each elementary stage (E1n) comprises a pair of identical cells of NPC type (Cen1, Cen2) in series, the connection being direct in the elementary stage of rank 1, the connection being made via n?1 capacitive cells ((Can(1), . . . Can(n?1)) for each elementary stage of rank greater than one, the second stage (Et2) comprising a floating capacitor cell (Ce10).Type: ApplicationFiled: March 2, 2015Publication date: October 8, 2015Applicant: Schneider Toshiba Inverter Europe SASInventor: Jean-Paul LAVIEVILLE
-
Patent number: 7355369Abstract: An on-load transformer tap changing system, for example for a power transformer, wherein the secondary or primary of a transformer includes at least one first tap and one second tap. A main connection circuit is used for permanent connection of the first tap or the second tap to an output terminal of the secondary or primary of the transformer. Secondary connection circuits are each used to connect a tap temporarily and directly to the output terminal of the secondary or primary of the transformer. Each of the connection circuits includes one or more insulated gate bipolar transistors. The system can be controlled without zero current value transition detection in the secondary winding.Type: GrantFiled: July 19, 2005Date of Patent: April 8, 2008Assignee: Areva T&D SAInventors: Jean-Paul Lavieville, Witold Weber, Mohamed Ryadi, Milan Saravolac
-
Publication number: 20060039171Abstract: The invention relates to an on-load transformer tap changing system wherein the secondary or primary of a transformer comprises at least one first and one second taps (p1, p2). A main connection circuit (tra-I2) is used for the permanent connection of the first tap (p1) or the second tap (p2) to an output terminal (b2) of the secondary or primary of the transformer. Secondary connection circuits (I1, I3) are each used to connect a tap (p1, p2) temporarily and directly to said output terminal (b2) of the secondary or primary of the transformer. Each of said connection circuits (I1, tra-I2, I3) comprises one or more insulated gate bipolar transistors and the system can be controlled without zero current value transition detection in the secondary winding. Application: Power transformers.Type: ApplicationFiled: July 19, 2005Publication date: February 23, 2006Applicant: AREVA T&D SAInventors: Jean-Paul Lavieville, Witold Weber, Mohamed Ryadi, Milan Saravolac
-
Patent number: 5940285Abstract: A multilevel converter including, in particular, a capacitor for each of its cells, and control means comprising means for evaluating the mean voltage across the terminals of each of the capacitors, means for measuring any difference on each of said capacitors between the evaluated mean charge voltage and the nominal mean charge voltage of the capacitor, and additional control means changing the time positions of the converter control signals in a direction such that the measured difference is reduced.Type: GrantFiled: August 8, 1997Date of Patent: August 17, 1999Assignee: GEC Alsthom Transport SAInventors: Philippe Carrere, Jean-Paul Lavieville, Thierry Meynard, Jean-Luc Thomas
-
Patent number: 5828561Abstract: A multilevel converter comprising, in particular, a capacitor (C1, C2, . . . , Cn) in each of its cells. The capacitors nominally have charge voltages proportional to their respective ranks in the converter. The converter also includes circuits (VMO1, VMO2, . . . , VMOn) for evaluating the mean voltage across the terminals of each of the capacitors (C1, C2, . . . , Cn), circuits (VE1, VE2, . . . , VEn) for measuring any difference that may occur with respect to each of the capacitors (C1, C2, . . . , Cn) between the evaluated mean charge voltage and the nominal mean charge voltage of the capacitor, and for providing a corresponding difference signal (VEC1, VEC2, . . . , VECn), and also correction control circuits (BT, EC1, EC2, . . . , ECn) receiving the difference signals and correspondingly causing at least one temporary coupling to be established between two capacitors in order to correct the difference.Type: GrantFiled: August 16, 1996Date of Patent: October 27, 1998Assignee: GEC Alsthom Transport SAInventors: Jean-Paul Lavieville, Juan Gonzalez
-
Patent number: 5764088Abstract: The control path of the switch (I) comprises an input stage (T2, T1) having an input (H) coupled to the input (E) for the control signal and having its output coupled to the control electrode (G) of the switch (I). A protection circuit (D1, Z2) coupled between the load (C) and the control path includes a threshold effect component (Z2) and a decoupling element (D1). On being made conductive by the current that results from a surge generated in a circuit of the load (C), the protection circuit (D1, Z2) is coupled to the input (H) of said input stage (T2, T1) to act on said switch (I) in the same way as a control signal for the switch (I). In this manner, the control path prevents current in the load (C) from dropping off suddenly.Type: GrantFiled: October 10, 1997Date of Patent: June 9, 1998Assignee: Alcatel Alsthom Compagnie Generale D'ElectriciteInventors: Jean-Paul Lavieville, Didier Muller
-
Patent number: 5726870Abstract: A multilevel converter comprising, in particular, one capacitor (C1, C2, . . . , Cn) and two switches (T1, T'1; for example) in each of its cells. The cells operate successively in a period that repeats at a converter frequency. In parallel with the load (C), a filter circuit (CF) is provided to dissipate the energy of any component having a fundamental frequency that corresponds to said converter period. The filter comprises one or more RLC type series circuits.Type: GrantFiled: August 8, 1996Date of Patent: March 10, 1998Assignee: GEC Alsthom Transport SAInventors: Jean-Paul Lavieville, Olivier Bethoux, Philippe Carrere, Thierry Meynard
-
Patent number: 5706188Abstract: A multilevel converter including, in particular, a capacitor (C1, C2, . . . , Cn) for each of its cells, and control means comprising means (VMO1, VMO2, . . . , VMOn) for evaluating the mean voltage across the terminals of each of the capacitors (C1, C2, . . . , Cn), means (VE1, VE2, . . . , VEn) for measuring any difference on each of said capacitors (C1, C2, . . . , Cn) between the evaluated mean charge voltage and the nominal mean charge voltage of the capacitor, and additional control means (MCC1, MCC2, . . . , MCCn) changing the duration of said first conduction state of the cell associated with said capacitor in a direction such that the measured difference is reduced.Type: GrantFiled: October 23, 1996Date of Patent: January 6, 1998Assignee: GEC Alsthom Transport SAInventors: Thierry Meynard, Jean-Paul Lavieville, Philippe Carrere, Juan Gonzalez, Olivier Bethoux
-
Patent number: 5668711Abstract: A multilevel converter including, in particular, a capacitor (C1, C2, . . . , Cn) for each of its cells. The capacitors have nominal charge voltages proportional to their respective ranks in the converter. It also includes control means (BT, DA1, . . . , DAn, pe2, . . . , pen) organized to evaluate said voltage of the voltage source (VECn), and whenever it is insufficient, to suspend said nominal operation of the converter (SE) and to act on said switches (T1, T'1; T2; T'2; . . . ; Tn, T'n) in such a manner that initially, while said voltage of the voltage source is being established, it begins by charging all of the capacitors of the converter (C1, C2, . . . , Cn), after which said control means establish said nominal operation of the converter.Type: GrantFiled: July 23, 1996Date of Patent: September 16, 1997Assignee: Gec Alsthom Transport SAInventors: Jean-Paul Lavieville, Philippe Carrere, Thierry Meynard