Patents by Inventor Francisco Canales
Francisco Canales 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: 11949348Abstract: A multi-pulse line-interphase transformer converter includes an electric part that includes magnetic components configured to be connected to a three-phase AC grid, and an electric part that includes a multi-phase voltage system configured to be connected to a common DC capacitor. The electric part splits each AC grid phase n times into two phases, resulting in a plurality of intermediate phases at an internal interface, each intermediate phase corresponding to a pulse of the multi-pulse line-interphase transformer converter. The intermediate phases are connected to the multi-phase voltage system. The multi-phase voltage system comprises bridges with actively controlled switches. The bridges are connected in parallel to the common DC capacitor.Type: GrantFiled: August 9, 2022Date of Patent: April 2, 2024Assignee: ABB E-mobility B.V.Inventors: Uwe Drofenik, Francisco Canales, Daniel Rothmund
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Publication number: 20240019315Abstract: A temperature measurement arrangement for measuring a temperature in a noise voltage-inducing environment includes a sensing circuit including a Negative Temperature Coefficient Thermistor (NTC) for sensing a temperature and a filter for compensating the induced noise voltage at a filter frequency.Type: ApplicationFiled: July 18, 2023Publication date: January 18, 2024Applicant: ABB E-mobility B.V.Inventors: Daniel Rothmund, Francisco Canales, Sami Pettersson, Daniel Christen, Piotr Pawel Czyz, Marcin Knafel
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Publication number: 20230361561Abstract: A direct current (DC) distribution system includes a plurality of power consumer clusters, each comprising at least one power consumer. The power consumer clusters are arranged as a ring structure with a common low voltage (LV)-DC ring bus. Each power consumer is connected to the LV-DC ring bus. The DC distribution system further comprises a plurality of normal-open ring switches. Each power consumer cluster is separated from its adjacent power consumer clusters by one of the normal-open ring switches. Each power consumer cluster is fed by a MV-DC/DC converter, which in turn is fed by a MV-AC/DC converter connected to a MV-AC grid.Type: ApplicationFiled: May 1, 2023Publication date: November 9, 2023Applicant: ABB E-mobility B.V.Inventors: Daniel Rothmund, Francisco Canales
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Patent number: 11791628Abstract: An electrical interconnection circuit can be used with a solid-state-transformer (SST) system. The interconnection circuit includes medium voltage direct current (MVDC) to low voltage direct current (LVDC) direct current to direct current (DC/DC) converters, independent LVDC buses respectively connected to one of the MVDC to LVDC DC/DC converters, and an interconnecting DC/DC converter connecting at least two of the independent LVDC buses in order to ensure equal power demand from each MVDC to LVDC DC/DC converters. The interconnecting DC/DC converter is configured to re-route power between the plurality of independent LVDC buses. A power rating of the interconnecting DC/DC converter is set according to power to be rerouted from other LVDC buses via the interconnecting DC/DC converter.Type: GrantFiled: March 30, 2021Date of Patent: October 17, 2023Assignee: Hitachi Energy Switzerland AGInventors: Gabriel Ignacio Ortiz, Stephane Isler, Juergen Steinke, Francisco Canales
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Publication number: 20230178982Abstract: An electrical interconnection circuit can be used with a solid-state-transformer (SST) system. The interconnection circuit includes medium voltage direct current (MVDC) to low voltage direct current (LVDC) direct current to direct current (DC/DC) converters, independent LVDC buses respectively connected to one of the MVDC to LVDC DC/DC converters, and an interconnecting DC/DC converter connecting at least two of the independent LVDC buses in order to ensure equal power demand from each MVDC to LVDC DC/DC converters. The interconnecting DC/DC converter is configured to re-route power between the plurality of independent LVDC buses. A power rating of the interconnecting DC/DC converter is set according to power to be rerouted from other LVDC buses via the interconnecting DC/DC converter.Type: ApplicationFiled: March 30, 2021Publication date: June 8, 2023Inventors: Gabriel Ignacio Ortiz, Stephane Isler, Juergen Steinke, Francisco Canales
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Publication number: 20230049948Abstract: A LIT-based bi-directional medium voltage converter topology includes active medium voltage switches that comprise low voltage switches connected in series and/or switch-cells in a cascode-configuration.Type: ApplicationFiled: August 11, 2022Publication date: February 16, 2023Applicant: ABB Schweiz AGInventors: Uwe Drofenik, Francisco Canales
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Publication number: 20230048596Abstract: A bi-directional medium voltage converter topology includes an n-pulse line-interphase-transformer, LIT; a plurality of bi-directional medium voltage, MV converters connected to the LIT on an AC side thereof and connected in parallel on a DC side thereof; a bi-directional multi-stage DC/DC converter connected to the plurality of bi-directional MV converters; and a bi-directional low voltage, LV, DC/DC converter; wherein the multi-stage DC/DC converter and the LV DC/DC converter are connected to each other galvanically insulated.Type: ApplicationFiled: August 10, 2022Publication date: February 16, 2023Applicant: ABB Schweiz AGInventors: Uwe Drofenik, Francisco Canales
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Publication number: 20230050293Abstract: A charging system for electric vehicles includes a line interphase transformer, LIT-based rectifier configured for connecting an input of the LIT-based rectifier to an AC medium-voltage power signal and for outputting a medium-voltage DC-signal; a modular DC/DC converter with large step-down gain is configured for transforming the medium-voltage DC-signal into a medium-voltage HF-AC-signal; and a medium-frequency transformer, MFT, is configured for transforming the medium-voltage HF-AC-signal into a low-voltage HF-AC-signal for the at least one charging box.Type: ApplicationFiled: October 31, 2022Publication date: February 16, 2023Applicant: ABB Schweiz AGInventors: Uwe Drofenik, Francisco Canales, Ki-Bum Park
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Publication number: 20230049615Abstract: A multi-pulse line-interphase transformer converter includes an electric part that includes magnetic components configured to be connected to a three-phase AC grid, and an electric part that includes a multi-phase voltage system configured to be connected to a common DC capacitor. The electric part splits each AC grid phase n times into two phases, resulting in a plurality of intermediate phases at an internal interface, each intermediate phase corresponding to a pulse of the multi-pulse line-interphase transformer converter. The intermediate phases are connected to the multi-phase voltage system. The multi-phase voltage system comprises bridges with actively controlled switches. The bridges are connected in parallel to the common DC capacitor.Type: ApplicationFiled: August 9, 2022Publication date: February 16, 2023Applicant: ABB E-mobility B.V.Inventors: Uwe Drofenik, Francisco Canales, Daniel Rothmund
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Publication number: 20230050057Abstract: A power supply system includes a power feeding system for transforming an AC medium-voltage power signal from a medium-voltage grid into a low-voltage power signal for feeding an electricity consumer site. The power supply system further includes a low-voltage multiphase converter for transforming a low-voltage signal into a low-voltage multiphase signal. The multiphase converter is arranged antiparallel to the power feeding system, and an LV/MV multiphase transformer for transforming the low-voltage multiphase signal into an output-signal that is conformant to the AC medium-voltage power signal.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Applicant: ABB Schweiz AGInventors: Uwe Drofenik, Thomas Bernhard Gradinger, Francisco Canales, Gabriel Ignacio Ortiz, Ki-Bum Park, Daniel Rothmund, Levy Costa
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Patent number: 11563370Abstract: A protection circuit for a power converter with cascaded bipolar and/or unipolar semiconductors is provided. The protection circuit includes at least one comparator circuit which is adapted to monitor a voltage characteristic on a collector-emitter path of at least one semiconductor which is arranged in a polarity selection stage of the power converter and/or to monitor a voltage characteristic on at least one capacitor, which is arranged in the power converter. The at least one comparator circuit is further adapted to output an electrical signal, representing the voltage characteristic of the semiconductor and/or the at least one capacitor to at least one evaluation unit. The at least one evaluation unit is further adapted to evaluate the result from the at least one comparator circuit and to deactivate the semiconductors in case that the voltage characteristic of the semiconductors and/or the capacitors deviate from a predetermined threshold.Type: GrantFiled: September 1, 2020Date of Patent: January 24, 2023Assignee: ABB SCHWEIZ AGInventors: Sami Pettersson, Mario Schweizer, Ki-Bum Park, Francisco Canales
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Publication number: 20220345045Abstract: A DC/DC converter which includes a first DC link, preferably a first DC link capacitor; a first plurality of N>1 converter bridges connected in parallel to the first DC link; and a transformer, preferably a medium frequency transformer. The transformer includes a primary side and a secondary side, wherein the primary side includes at least one primary winding. The converter further comprises a first plurality of N impedance elements, wherein for each converter bridge, a different one from the first plurality of impedance elements is connected between said converter bridge and the at least one primary winding.Type: ApplicationFiled: September 18, 2020Publication date: October 27, 2022Inventors: Uwe Drofenik, Thomas Bernhard Gradinger, Francisco Canales
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Patent number: 11480602Abstract: Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.Type: GrantFiled: July 10, 2020Date of Patent: October 25, 2022Assignee: ABB Schweiz AGInventors: Uwe Drofenik, Thomas Gradinger, Francisco Canales
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Publication number: 20220278624Abstract: A dual active bridge DC/DC converter in accordance with the invention comprises a first DC link, preferably comprising a first DC link capacitor; a converter bridge connected to the first DC link; a transformer, preferably a medium frequency transformer, having a primary side and a secondary side; the primary side of the transformer comprising a plurality of M>1 primary windings, each of the plurality of primary windings having a first and a second terminal; wherein the dual active bridge DC/DC converter further comprises a first plurality of M energy transfer inductors; and wherein for each of the M primary windings, a different one from the first plurality of energy transfer inductors is connected between said primary winding bridge and the converter bridge.Type: ApplicationFiled: September 18, 2020Publication date: September 1, 2022Applicant: Hitachi Energy Switzerland AGInventors: Uwe DROFENIK, Thomas GRADINGER, Francisco CANALES
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Publication number: 20210336440Abstract: A charging station for electric vehicles includes a central part for converting a grid AC voltage from an electrical grid into a high frequency AC voltage; a distribution network for distributing the high frequency AC voltage; and a plurality of coils directly connected to the distribution network, wherein each coil is adapted for transferring energy to an electrical vehicle.Type: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Applicant: ABB Schweiz AGInventors: Francisco Canales, Ki-Bum Park
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Publication number: 20210119442Abstract: A protection circuit for a power converter with cascaded bipolar and/or unipolar semiconductors is provided. The protection circuit includes at least one comparator circuit which is adapted to monitor a voltage characteristic on a collector-emitter path of at least one semiconductor which is arranged in a polarity selection stage of the power converter and/or to monitor a voltage characteristic on at least one capacitor, which is arranged in the power converter. The at least one comparator circuit is further adapted to output an electrical signal, representing the voltage characteristic of the semiconductor and/or the at least one capacitor to at least one evaluation unit. The at least one evaluation unit is further adapted to evaluate the result from the at least one comparator circuit and to deactivate the semiconductors in case that the voltage characteristic of the semiconductors and/or the capacitors deviate from a predetermined threshold.Type: ApplicationFiled: September 1, 2020Publication date: April 22, 2021Inventors: Sami Pettersson, Mario Schweizer, Ki-Bum Park, Francisco Canales
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Publication number: 20210018554Abstract: Transformer assembly including a first transformer stage having a plurality of first-stage transformer cells; and a second transformer stage. An input of the second transformer stage is connected to an output of the first transformer stage. A lightning impulse breakdown voltage of a transformer cell of the second stage is at least double of a lightning impulse breakdown voltage of transformer cells of the first stage.Type: ApplicationFiled: July 10, 2020Publication date: January 21, 2021Inventors: Uwe Drofenik, Thomas Gradinger, Francisco Canales
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Patent number: 10797586Abstract: A power module included a plurality of normally-on semiconductor switches based on a wide bandgap substrate, the normally-on semiconductor switches connected in parallel; and a balancing unit including a capacitor and a balancing semiconductor switch connected in series, which are connected in parallel to the normally-on semiconductor switches.Type: GrantFiled: October 25, 2019Date of Patent: October 6, 2020Assignee: ABB Schweiz AGInventors: Uwe Drofenik, Francisco Canales, Chunlei Liu, Franziska Brem
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Patent number: 10673353Abstract: A converter cell for a modular converter includes at least one power semiconductor switch for switching a cell current through the converter cell; a cell capacitor interconnected with the at least one power semiconductor switch, such that the cell capacitor is loadable by the cell current; a controller for switching the at least one power semiconductor switch, wherein the controller is supplyable with auxiliary power from the cell capacitor; and a photovoltaic cell for providing initial and/or further auxiliary power to the controller.Type: GrantFiled: May 30, 2018Date of Patent: June 2, 2020Assignee: ABB Schweiz AGInventors: Uwe Drofenik, Franziska Brem, Francisco Canales
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Publication number: 20200106384Abstract: An inverter arrangement based on photovoltaic elements includes at least two strings including switching elements, which strings are connected to at least two AC terminals, where at least one of the strings is a string of submodules, each submodule including at least two switching elements and an energy storage element, having DC terminals and being configured to make a voltage contribution to the forming of an AC voltage on an AC terminal, and a number of input stages each including at least one energy delivery element, where at least some of the energy delivery elements are photovoltaic elements, each input stage being connected to DC terminals of a corresponding for delivering power to or from at least one AC terminal when the corresponding submodule contributes to the forming of the AC voltage on the AC terminal.Type: ApplicationFiled: October 1, 2019Publication date: April 2, 2020Inventors: Cicero Postiglione, Frans Dijkhuizen, Jan Svensson, Alireza Nami, Francisco Canales