Patents by Inventor Jan Svensson
Jan Svensson 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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Publication number: 20240097442Abstract: A method for controlling an output voltage of at least one transformer in a power grid. The comprises providing the least one transformers with a power electronics converter and an output voltage controller, determining a grid frequency, comparing the grid frequency with a reference value, producing an error signal, applying the error signal as feedback to the controller, and generating a control action to cause the controller to change the output voltage of the transformer comprising a power electronics converter. The power electronics converter is an AC-AC converter, and the method comprises connecting the AC-AC converter to either a primary side or a secondary side of the transformer. The AC-AC converter has a first AC side and a second AC side and the method comprises connecting two terminals on the first AC side in-parallel to a winding of the transformer, and connecting the second AC side to an external circuit line.Type: ApplicationFiled: February 24, 2022Publication date: March 21, 2024Inventors: Nicklas Johansson, Jan Svensson, Panagiotis Bakas, Roberto Alves
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Publication number: 20240006885Abstract: An energy storage system and a method for controlling such a system is disclosed. The energy storage system comprises a plurality of interconnected energy storage cells forming an energy storage module, a power converter connected to the energy storage module, a resistor circuit connected in parallel to the energy storage module, a switch connected in series with the resistor circuit and configured to disconnect the resistor circuit from the energy storage module, and a control unit operably connected to the switch. The control unit is configured to receive information pertaining to a transmission of energy in the energy storage system and to control the switch based on said information.Type: ApplicationFiled: November 11, 2020Publication date: January 4, 2024Inventors: Lexuan MENG, Haofeng BAI, Tong WU, Mohsen ASOODAR, Jean-Philippe HASLER, Gunnar INGESTRĂ–M, Jan KHEIR, Jan SVENSSON
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Publication number: 20230327571Abstract: A transformer arrangement includes a first and a second arrangement side and a transformer with first windings coupled to the first arrangement side and with second windings having a first to a fourth tap. The transformer arrangement comprises a converter coupling the first, second and third tap to the second arrangement side, a first filter circuit coupling the first tap to the third tap and a second filter circuit coupling the third tap to the second tap.Type: ApplicationFiled: October 4, 2021Publication date: October 12, 2023Applicant: Hitachi Energy Switzerland AGInventors: Roberto ALVES, Panagiotis BAKAS, Jan SVENSSON, Muhammad NAWAZ, Seyed Ali MOUSAVI, Daniel JOHANNESSON, Peter STEIMER
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Publication number: 20230328312Abstract: A system and method for a videostream is operating correctly. The system decompresses a compressed videostream which includes a compressed graphical timestamp, thereby resulting in a decompressed videostream with a decompressed graphical timestamp, the compressed timestamp and the decompressed graphical timestamp associated with an insert time. The system then renders the decompressed videostream, resulting in a rendered videostream with a rendered graphical timestamp. The system then extracts the rendered graphical timestamp from the rendered videostream at an extract time and determines whether a difference between the insert time of the rendered graphical timestamp and the extract time exceeds a predetermined threshold.Type: ApplicationFiled: January 27, 2023Publication date: October 12, 2023Applicant: VOLVO TRUCK CORPORATIONInventor: Jan SVENSSON
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Patent number: 11757368Abstract: A transformer arrangement is provided. The transformer arrangement includes a transformer with a primary and a secondary winding and a chain link of switching blocks connected in series between one of the windings and a load, where the switching blocks comprise a first set of voltage contribution blocks and a second set of circuit breaker blocks, where the first set of voltage contribution blocks is configured to adjust a voltage output by the transformer with an offset voltage and the second set of circuit breaker blocks is configured to interrupt a current running through the chain link.Type: GrantFiled: December 18, 2020Date of Patent: September 12, 2023Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Roberto Alves, Nan Chen, Frans Dijkhuizen, Jan Svensson, Alireza Nami
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Patent number: 11694840Abstract: Provided is a transformer arrangement wherein active and/or reactive power can be injected in an alternating current link using a current regulator and a voltage regulator portion, wherein at least one winding with which the current regulator is connected in parallel is at least one tertiary winding, and wherein the current regulator includes a number of current regulator sections, each connected to a corresponding voltage regular section of a voltage regulator portion via a corresponding dc link.Type: GrantFiled: December 18, 2020Date of Patent: July 4, 2023Assignee: Hitachi Energy Switzerland AGInventors: Roberto Alves, Nan Chen, Frans Dijkhuizen, Jan Svensson, Alireza Nami
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Patent number: 11671028Abstract: An AC-to-AC modular multilevel converter (MMC) is configured to be connected between a three-phase AC system and a single-phase AC system. The MMC includes a number of converter arms connected in a ring to allow a circulating current to be circulated in the ring through each of the converter arms. Each converter arm includes series-connected converter cells. Phase terminals are arranged in the ring between the converter arms such that each of the converter arms is separated from neighboring converter arms by at least one of the phase terminals. The phase terminals include respective terminals for each of a first phase, a second phase and a third phase of the three-phase AC system and respective terminals for each of a positive conductor and a negative conductor of the single-phase AC system.Type: GrantFiled: July 19, 2019Date of Patent: June 6, 2023Assignee: Hitachi Energy Switzerland AGInventors: Thomas Schaad, Michail Vasiladiotis, Jan Svensson, Georgios Stamatiou
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Publication number: 20220407429Abstract: A transformer arrangement is provided. The transformer arrangement includes a transformer with a primary and a secondary winding and a chain link of switching blocks connected in series between one of the windings and a load, where the switching blocks comprise a first set of voltage contribution blocks and a second set of circuit breaker blocks, where the first set of voltage contribution blocks is configured to adjust a voltage output by the transformer with an offset voltage and the second set of circuit breaker blocks is configured to interrupt a current running through the chain link.Type: ApplicationFiled: December 18, 2020Publication date: December 22, 2022Applicant: Hitachi Energy Switzerland AGInventors: Roberto ALVES, Nan CHEN, Frans DIJKHUIZEN, Jan SVENSSON, Alireza NAMI
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Patent number: 11520428Abstract: A finger position sensitive HMI for handling a user input of a user. The HMI includes an EDPU and includes a finger-position sensitive display. The display is arranged to display a generated button at the generated display location, to detect touch coordinates of a touched location on the display to provide the detected touch coordinates to the HMI OS, and to detect a force signal caused by pressure being applied to the display. The display is further arranged to provide the detected force signal to a supervising element. A check unit connected to the supervising element is arranged to observe a displayed button, and to generate an observed button bitmap content indicator of a pixel area related to the observed displayed button. The supervising element is arranged to release the provided service request related to the displayed button.Type: GrantFiled: October 28, 2019Date of Patent: December 6, 2022Assignee: Volvo Truck CorporationInventors: Jonas Thorsell, Jan Svensson
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Publication number: 20220344093Abstract: Provided is a transformer arrangement wherein active and/or reactive power can be injected in an alternating current link using a current regulator and a voltage regulator portion, wherein at least one winding with which the current regulator is connected in parallel is at least one tertiary winding, and wherein the current regulator includes a number of current regulator sections, each connected to a corresponding voltage regular section of a voltage regulator portion via a corresponding dc link.Type: ApplicationFiled: December 18, 2020Publication date: October 27, 2022Applicant: Hitachi Energy Switzerland AGInventors: Roberto ALVES, Nan CHEN, Frans Dijkhuizen, Jan Svensson, Alireza NAMI
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Patent number: 11424679Abstract: The present disclosure relates to a converter cell (4) for an MMC. The cell comprises a primary energy storage (Cm), an inductor (Lf), and a secondary energy storage (Cf); and first and second converter valves (T1, T2). The secondary energy storage (Cf) is connected in series with the first converter valve (T1), and together with said first converter valve in parallel with the inductor (Lf), and the primary energy storage (Cm) is connected in series with the second converter valve (T2), and together with said second converter valve (T2) in parallel with the inductor (Lf).Type: GrantFiled: February 27, 2019Date of Patent: August 23, 2022Assignee: HITACHI ENERGY SWITZERLAND AGInventors: Aravind Mohanaveeramani, Jan Svensson, Lennart Harnefors, Alireza Nami
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Publication number: 20220263422Abstract: An AC-to-AC modular multilevel converter (MMC) is configured to be connected between a three-phase AC system and a single-phase AC system. The MMC includes a number of converter arms connected in a ring to allow a circulating current to be circulated in the ring through each of the converter arms. Each converter arm includes series-connected converter cells. Phase terminals are arranged in the ring between the converter arms such that each of the converter arms is separated from neighboring converter arms by at least one of the phase terminals. The phase terminals include respective terminals for each of a first phase, a second phase and a third phase of the three-phase AC system and respective terminals for each of a positive conductor and a negative conductor of the single-phase AC system.Type: ApplicationFiled: July 19, 2019Publication date: August 18, 2022Inventors: Thomas Schadd, Michail Vasiladiotis, Jan Svensson, Georgios Stamatiou
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Patent number: 11418127Abstract: The present disclosure relates to a converter cell (4) for a power converter. The cell comprises a plurality of semiconductor devices (T) forming a half-bridge or full-bridge topology in the cell. The cell also comprises an energy storage (5) connected across the at least one switch leg (6). The cell also comprises a crowbar leg (7) connected across the at least one switch leg, comprising a plurality of series connected semiconductor crowbar switches (C) arranged to short-circuit the energy storage (5). The cell also comprises first and second AC terminals (A, B), wherein at least one of said AC terminals is connected to one of the at least one switch leg, between two of the plurality of series connected semiconductor devices of said switch leg, and connected to the crowbar leg, between two of the plurality of series connected crowbar switches of said crowbar leg.Type: GrantFiled: February 28, 2019Date of Patent: August 16, 2022Assignee: Hitachi Energy Switzerland AGInventors: Aravind Mohanaveeramani, Jan Svensson, Alireza Nami
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Publication number: 20220085731Abstract: The present disclosure relates to a converter cell (4) for a power converter. The cell comprises a plurality of semiconductor devices (T) forming a half-bridge or full-bridge topology in the cell. The cell also comprises an energy storage (5) connected across the at least one switch leg (6). The cell also comprises a crowbar leg (7) connected across the at least one switch leg, comprising a plurality of series connected semiconductor crowbar switches (C) arranged to short-circuit the energy storage (5). The cell also comprises first and second AC terminals (A, B), wherein at least one of said AC terminals is connected to one of the at least one switch leg, between two of the plurality of series connected semiconductor devices of said switch leg, and connected to the crowbar leg, between two of the plurality of series connected crowbar switches of said crowbar leg.Type: ApplicationFiled: February 28, 2019Publication date: March 17, 2022Inventors: Aravind Mohanaveeramani, Jan Svensson, Alireza Nami
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Publication number: 20220045610Abstract: The present disclosure relates to a converter cell (4) for an MMC. The cell comprises a primary energy storage (Cm), an inductor (Lf), and a secondary energy storage (Cf); and first and second converter valves (T1, T2). The secondary energy storage (Cf) is connected in series with the first converter valve (T1), and together with said first converter valve in parallel with the inductor (Lf), and the primary energy storage (Cm) is connected in series with the second converter valve (T2), and together with said second converter valve (T2) in parallel with the inductor (Lf).Type: ApplicationFiled: February 27, 2019Publication date: February 10, 2022Inventors: Aravind Mohanaveeramani, Jan Svensson, Lennart Harnefors, Alireza Nami
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Patent number: 11228178Abstract: A photovoltaic power plant system for power generation, comprising one or more photovoltaic clusters and one or more modular multilevel converters. Each photovoltaic cluster includes a number of photovoltaic strings connected to one or more MPPT DC/DC, converters connected to a common LVDC, bus. Each photovoltaic cluster includes a DC/DC converter including an input connected to the LVDC bus, and an output connected to a MVDC collection grid. Each of the one or more modular multilevel converters includes an input connected to the one or more photovoltaic clusters via the MVDC collection grid and an output connected to a transmission grid.Type: GrantFiled: February 28, 2018Date of Patent: January 18, 2022Assignee: Marici Holdings The Netherlands B.V.Inventors: Antonis Marinopoulos, Jan Svensson, Silverio Alvarez, Stephan Schnez
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Publication number: 20220004278Abstract: A finger position sensitive HMI for handling a user input of a user. The HMI includes an EDPU and includes a finger-position sensitive display. The display is arranged to display a generated button at the generated display location, to detect touch coordinates of a touched location on the display to provide the detected touch coordinates to the HMI OS, and to detect a force signal caused by pressure being applied to the display. The display is further arranged to provide the detected force signal to a supervising element. A check unit connected to the supervising element is arranged to observe a displayed button, and to generate an observed button bitmap content indicator of a pixel area related to the observed displayed button. The supervising element is arranged to release the provided service request related to the displayed button.Type: ApplicationFiled: October 28, 2019Publication date: January 6, 2022Inventors: Jonas Thorsell, Jan Svensson
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Patent number: 11190009Abstract: A protection arrangement for a multiphase uninterruptible power supply system including a vacuum circuit breaker connected in series with an inductive element, where the inductive element includes, for every phase, two series-connected magnetically coupled windings separated by a tap point. The protection arrangement includes one first group of protective components per phase, each first group including a first protective component having a first end connected to a link between the vacuum circuit breaker and the inductive element and a second end connected to a corresponding tap point, where at least one protective component in each first group is a surge arrester.Type: GrantFiled: November 8, 2017Date of Patent: November 30, 2021Assignee: ABB Schweiz AGInventors: Jan Svensson, Kalle Ilves, Minos Beniakar, Theodore Soong
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Publication number: 20210135455Abstract: A photovoltaic power plant system for power generation, comprising one or more photovoltaic clusters and one or more modular multilevel converters. Each photovoltaic cluster includes a number of photovoltaic strings connected to one or more MPPT DC/DC, converters connected to a common LVDC, bus. Each photovoltaic cluster includes a DC/DC converter including an input connected to the LVDC bus, and an output connected to a MVDC collection grid. Each of the one or more modular multilevel converters includes an input connected to the one or more photovoltaic clusters via the MVDC collection grid and an output connected to a transmission grid.Type: ApplicationFiled: February 28, 2018Publication date: May 6, 2021Inventors: Antonis Marinopoulos, Jan Svensson, Silverio Alvarez, Stephan Schnez
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Patent number: 10666088Abstract: A protection arrangement for an uninterruptible power supply system including at least one vacuum circuit breaker connected in series with an inductive element, the protection arrangement including a first bypass branch and a first grounding branch, the first bypass branch being connected in parallel with the inductive element and including two series-connected protective components of a first type and a bypass branch midpoint between them, where the first grounding branch is connected between the bypass branch midpoint and ground and includes a first grounding surge arrester.Type: GrantFiled: December 6, 2017Date of Patent: May 26, 2020Assignee: ABB Schweiz AGInventors: Jan Svensson, Kalle Ilves, Minos Beniakar, Theodore Soong, Nick Elliott