Patents by Inventor Tomas Tengner
Tomas Tengner 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: 10840731Abstract: A high power flash battery system includes a wayside flash battery and a half-bridge cell. The half-bridge cell has a voltage polarity opposite to that of the wayside flash battery. The half-bridge cell is configured to be in a voltage compensation mode when the system is unloaded, and to be switched to a bypass mode when a voltage drop occurs due to the system being loaded. A high power charging station, an onboard battery operated device, as well as a method for flash charging are also presented.Type: GrantFiled: December 20, 2016Date of Patent: November 17, 2020Assignee: ABB Power Grids Switzerland AGInventor: Tomas Tengner
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Patent number: 10601227Abstract: A method for controlling plant active power output ramp rate of a power plant to a PCC with a power grid includes obtaining information about a current RES active power output of a Renewable Energy Source (RES) in the power plant. The method also includes forecasting future RES active power output, during a predefined future time period. The method also includes, based on the obtained current RES active power output information and on the forecasted RES active power output, determining whether an expected ramp rate of the RES active power output during the predefined time period exceeds a predefined maximum ramp rate limit of a plant active power output.Type: GrantFiled: September 14, 2015Date of Patent: March 24, 2020Assignee: ABB SCHWEIZ AGInventors: Nicklas Johansson, Tomas Tengner, Mikko Huotari
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Publication number: 20190386494Abstract: A high power flash battery system includes a wayside flash battery and a half-bridge cell. The half-bridge cell has a voltage polarity opposite to that of the wayside flash battery. The half-bridge cell is configured to be in a voltage compensation mode when the system is unloaded, and to be switched to a bypass mode when a voltage drop occurs due to the system being loaded. A high power charging station, an onboard battery operated device, as well as a method for flash charging are also presented.Type: ApplicationFiled: December 20, 2016Publication date: December 19, 2019Applicant: ABB SCHWEIZ AGInventor: Tomas TENGNER
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Patent number: 10270328Abstract: A multilevel power converter includes at least one phase leg. The phase leg includes a plurality of cascaded chain link connected cells, each cell including a capacitor and two semiconductor switches in series, each with an anti-parallel connected diode. The plurality of cascaded chain link connected cells includes first and second cells which form a mirrored cell-pair such that the two semiconductor switches of each of the first and second cells are all connected in series with each other. The converter further includes an energy storage connected between the first and second cells.Type: GrantFiled: February 4, 2015Date of Patent: April 23, 2019Assignee: ABB SCHWEIZ AGInventors: Tomas Tengner, Amel Lachichi, Lennart Harnefors, Georgios Karmiris
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Publication number: 20190052088Abstract: A method for controlling plant active power output ramp rate of a power plant to a PCC with a power grid includes obtaining information about a current RES active power output of a Renewable Energy Source (RES) in the power plant. The method also includes forecasting future RES active power output, during a predefined future time period. The method also includes, based on the obtained current RES active power output information and on the forecasted RES active power output, determining whether an expected ramp rate of the RES active power output during the predefined time period exceeds a predefined maximum ramp rate limit of a plant active power output.Type: ApplicationFiled: September 14, 2015Publication date: February 14, 2019Applicant: ABB SCHWEIZ AGInventors: Nicklas JOHANSSON, Tomas TENGNER, Mikko HUOTARI
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Patent number: 10193469Abstract: A multi-level power converter for one or more phases includes one or more converter arms including a plurality of serial connected switching cells. Each switching cell includes a plurality of switching devices, a primary energy storage, a secondary energy storage and a first inductor. The switching devices are arranged to selectively provide a connection to the primary energy storage, wherein each switching cell includes a bridge circuit including the switching devices and the primary energy storage, a battery circuit connected to the bridge circuit and including the secondary energy storage, and an arm circuit providing a connection between two adjacent switching cells. The first inductor of each switching cell is arranged in the arm circuit.Type: GrantFiled: June 29, 2015Date of Patent: January 29, 2019Assignee: ABB SCHWEIZ AGInventors: Lennart Harnefors, Tomas Tengner
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Patent number: 10177557Abstract: A passive electronic fuse for protecting a DC application in the event of a fault includes a first leg including a first winding of a mutual inductor and a switch device connected in series, a second leg including a second winding of the mutual inductor. The first leg and the second leg are connected in parallel and a self-inductance of the second winding is lower than a self-inductance of the first winding. The second leg further includes a capacitor connected in series with the second winding of the mutual inductor, and the switch device is a thyristor or a switch device with switching properties of a thyristor.Type: GrantFiled: June 12, 2015Date of Patent: January 8, 2019Assignee: ABB SCHWEIZ AGInventors: Robert Saers, Lars Liljestrand, Tomas Tengner, Jesper Magnusson
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Publication number: 20180183229Abstract: A passive electronic fuse for protecting a DC application in the event of a fault includes a first leg including a first winding of a mutual inductor and a switch device connected in series, a second leg including a second winding of the mutual inductor. The first leg and the second leg are connected in parallel and a self-inductance of the second winding is lower than a self-inductance of the first winding. The second leg further includes a capacitor connected in series with the second winding of the mutual inductor, and the switch device is a thyristor or a switch device with switching properties of a thyristor.Type: ApplicationFiled: June 12, 2015Publication date: June 28, 2018Applicant: ABB SCHWEIZ AGInventors: Robert SAERS, Lars LILJESTRAND, Tomas TENGNER, Jesper MAGNUSSON
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Patent number: 9991713Abstract: An energy storage system (ESS) for an electrical system includes an energy storage, and a converter interface arranged for connecting the energy storage to the electrical system. The converter interface includes a modular multilevel converter in which each phase leg includes a plurality of series connected cells of which at least one is a half-bridge cell and at least one is a full-bridge cell.Type: GrantFiled: February 19, 2014Date of Patent: June 5, 2018Assignee: ABB SCHWEIZ ABInventors: Tomas Tengner, Christopher Townsend, Hector Zelaya de la Parra, Alireza Nami
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Publication number: 20180138825Abstract: A multi-level power converter for one or more phases includes one or more converter arms including a plurality of serial connected switching cells. Each switching cell includes a plurality of switching devices, a primary energy storage, a secondary energy storage and a first inductor. The switching devices are arranged to selectively provide a connection to the primary energy storage, wherein each switching cell includes a bridge circuit including the switching devices and the primary energy storage, a battery circuit connected to the bridge circuit and including the secondary energy storage, and an arm circuit providing a connection between two adjacent switching cells. The first inductor of each switching cell is arranged in the arm circuit.Type: ApplicationFiled: June 29, 2015Publication date: May 17, 2018Applicant: ABB SCHWEIZ AGInventors: Lennart HARNEFORS, Tomas TENGNER
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Publication number: 20180026519Abstract: A multilevel power converter includes at least one phase leg. The phase leg includes a plurality of cascaded chain link connected cells, each cell including a capacitor and two semiconductor switches in series, each with an anti-parallel connected diode. The plurality of cascaded chain link connected cells includes first and second cells which form a mirrored cell-pair such that the two semiconductor switches of each of the first and second cells are all connected in series with each other. The converter further includes an energy storage connected between the first and second cells.Type: ApplicationFiled: February 4, 2015Publication date: January 25, 2018Applicant: ABB Schweiz AGInventors: Tomas TENGNER, Amel LACHICHI, Lennart HARNEFORS, Georgios KARMIRIS
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Publication number: 20170170658Abstract: An energy storage system (ESS) for an electrical system includes an energy storage, and a converter interface arranged for connecting the energy storage to the electrical system. The converter interface includes a modular multilevel converter in which each phase leg includes a plurality of series connected cells of which at least one is a half-bridge cell and at least one is a full-bridge cell.Type: ApplicationFiled: February 19, 2014Publication date: June 15, 2017Applicant: ABB SCHWEIZ AGInventors: Tomas TENGNER, Christopher TOWNSEND, Hector ZELAYA DE LA PARRA, Alireza NAMI
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Patent number: 9425681Abstract: Battery energy storage arranged to be connected to a direct current capacitor, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a controllable voltage source adapted to inject a voltage opposite to a voltage ripple of the direct current capacitor. A power system including such battery energy storage and a direct current capacitor is also disclosed.Type: GrantFiled: November 3, 2014Date of Patent: August 23, 2016Assignee: ABB Research Ltd.Inventors: Tomas Tengner, Roberto Alves
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Patent number: 9257870Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.Type: GrantFiled: November 7, 2014Date of Patent: February 9, 2016Assignee: ABB Research Ltd.Inventor: Tomas Tengner
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Publication number: 20150069839Abstract: A battery energy storage arranged to be connected to a capacitor link, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a direct current energy source connected in series with a voltage source converter. The voltage source converter is adapted to insert a positive voltage when the voltage of the battery module falls below a first threshold value, and to insert a negative voltage when the voltage of the battery module exceeds a second threshold value. The direct current energy source is adapted to be either charged or discharged during the voltage insertion by the voltage source converter. The disclosure also provides a battery energy storage system including such battery energy storage.Type: ApplicationFiled: November 7, 2014Publication date: March 12, 2015Inventor: Tomas Tengner
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Publication number: 20150055387Abstract: Battery energy storage arranged to be connected to a direct current capacitor, which is connected in parallel to a power converter. The battery energy storage includes a battery module and a controllable voltage source adapted to inject a voltage opposite to a voltage ripple of the direct current capacitor. A power system including such battery energy storage and a direct current capacitor is also disclosed.Type: ApplicationFiled: November 3, 2014Publication date: February 26, 2015Inventors: Tomas Tengner, Roberto Alves
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Patent number: 8829732Abstract: A wireless power transferring device, a wireless power transferring unit and a wireless power receiving unit for transferring and receiving power. The power receiving unit includes an induction coil adapted to be subjected to an alternating magnetic field so that an alternating current is induced in the induction coil, a receiving concentrator core adapted to concentrate the magnetic field wherein the receiving concentrator core is surrounded by a medium, and a receiving guide member arranged to provide a smooth transition for the magnetic field between the medium and the concentrator core, and abutting the receiving concentrator core. The receiving guide member has a magnetic permeability in the range between the magnetic permeability of the receiving concentrator core and the medium.Type: GrantFiled: November 21, 2012Date of Patent: September 9, 2014Assignee: ABB Research Ltd.Inventor: Tomas Tengner
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Publication number: 20130082539Abstract: A wireless power transferring device, a wireless power transferring unit and a wireless power receiving unit for transferring and receiving power. The power receiving unit includes an induction coil adapted to be subjected to an alternating magnetic field so that an alternating current is induced in the induction coil, a receiving concentrator core adapted to concentrate the magnetic field wherein the receiving concentrator core is surrounded by a medium, and a receiving guide member arranged to provide a smooth transition for the magnetic field between the medium and the concentrator core, and abutting the receiving concentrator core. The receiving guide member has a magnetic permeability in the range between the magnetic permeability of the receiving concentrator core and the medium.Type: ApplicationFiled: November 21, 2012Publication date: April 4, 2013Inventor: Tomas Tengner