Patents by Inventor Willy Hermansson
Willy Hermansson 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: 8847664Abstract: A gate control circuit including: a gate input arranged to receive an input gate feed signal; a gate output arranged to be connected, during normal operation, to at least one switching module for controlling current through a main circuit, the gate output being connected to the gate input; a power supply; and a switch connected between the power supply and the gate output, the switch being arranged to close as a response to a failure. A corresponding power module and method are also presented.Type: GrantFiled: March 16, 2011Date of Patent: September 30, 2014Assignee: ABB Research Ltd.Inventors: Filippo Chimento, Willy Hermansson, Staffan Norrga
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Patent number: 8848322Abstract: It is presented a gate control circuit comprising: a main gate unit arranged to supply, via a plurality of main gate unit outputs, a gate signal to respective gates of a plurality of power switches, for controlling a main current; and an auxiliary gate unit comprising an optical power converter for converting incoming optical power to an auxiliary electrical gate signal. The auxiliary gate unit is arranged to, when a failure occurs in one of the plurality of power switches, provide the auxiliary electrical gate signal to respective gates of any of the plurality of power switches still being in operation. A corresponding power module and method are also presented.Type: GrantFiled: June 20, 2011Date of Patent: September 30, 2014Assignee: ABB Research LtdInventors: Jürgen Häfner, Willy Hermansson
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Publication number: 20140168840Abstract: It is presented a gate control circuit comprising: a main gate unit arranged to supply, via a plurality of main gate unit outputs, a gate signal to respective gates of a plurality of power switches, for controlling a main current; and an auxiliary gate unit comprising an optical power converter for converting incoming optical power to an auxiliary electrical gate signal. The auxiliary gate unit is arranged to, when a failure occurs in one of the plurality of power switches, provide the auxiliary electrical gate signal to respective gates of any of the plurality of power switches still being in operation. A corresponding power module and method are also presented.Type: ApplicationFiled: June 20, 2011Publication date: June 19, 2014Applicant: ABB RESEARCH LTD.Inventors: Jürgen Häfner, Willy Hermansson
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Patent number: 8754543Abstract: The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.Type: GrantFiled: December 2, 2010Date of Patent: June 17, 2014Assignee: ABB Research Ltd.Inventors: Jan R. Svensson, Georgios Demetriades, Bertil Nygren, Falah Hosini, Gerhard Brosig, Gunnar Russberg, Willy Hermansson
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Patent number: 8654495Abstract: A battery energy storage system including a control unit and a plurality of battery units. The battery units are arranged in series, and each battery unit includes a semiconductor switch and a battery module including a plurality of battery cells. Each battery module is connected in series with a respective semiconductor switch, and the control unit is operatively connected to the semiconductor switch and adapted to control the semiconductor switch of every battery unit.Type: GrantFiled: June 22, 2012Date of Patent: February 18, 2014Assignee: ABB Research Ltd.Inventors: Fredrik Tinglow, Jan Svensson, Magnus Backman, Willy Hermansson, Falah Hosini
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Publication number: 20140028358Abstract: A gate control circuit including: a gate input arranged to receive an input gate feed signal; a gate output arranged to be connected, during normal operation, to at least one switching module for controlling current through a main circuit, the gate output being connected to the gate input; a power supply; and a switch connected between the power supply and the gate output, the switch being arranged to close as a response to a failure. A corresponding power module and method are also presented.Type: ApplicationFiled: March 16, 2011Publication date: January 30, 2014Inventors: Filippo Chimento, Willy Hermansson, Staffan Norrga
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Patent number: 8633614Abstract: Storage device for a high voltage electrical power including at least two modules connected in series, each module including at least one dc power-source in a container with positive and negative terminals. The device including positive and negative poles, first and second conductors arranged to form a current path between the poles, the first conductor including a plurality of conductor parts connected to the terminals of the modules to provide a series connection, a first module of the series being connected to one of the poles, and the second conductor is connected between a last module in the series and the other pole, wherein the conductors are arranged to pass through the containers in parallel such that a current flows through the first conductor in a first direction and through the second conductor in an opposite second direction.Type: GrantFiled: November 22, 2010Date of Patent: January 21, 2014Assignee: ABB Research Ltd.Inventors: Tomas Larsson, Fredrik Tinglöw, Georgios Demetriades, Willy Hermansson, Konstantinos Papastergiou
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Patent number: 8525366Abstract: A dc power source for a high voltage power apparatus, the dc power source including one or more strings including a plurality of dc power source units connected in series, and switches configured to connect and disconnect said strings. The switches are solid-state switches distributed among the power source units of each string, and all solid-state switches in the string are arranged so that they are turned on and off simultaneously. Each switch is connected in parallel with a first controllable semiconductor in a first direction and connected in parallel with a second controllable semiconductor in a second direction which is opposite to the first direction, and the dc power source includes a control unit configured to bypass a failed switch by triggering the forward biased of the first or second controllable semiconductor connected to the failed switch in case a fault in the switch is detected.Type: GrantFiled: June 8, 2012Date of Patent: September 3, 2013Assignee: ABB Research Ltd.Inventors: Konstantinos Papastergiou, Willy Hermansson, Georgios Demetriades
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Patent number: 8310095Abstract: A power compensator for an electric power transmission line. The power compensator includes a voltage source converter, a capacitor and an energy storage device. The energy storage device includes a high voltage battery having a short circuit failure mode, a first main switch and second main switch for disconnecting the battery from the capacitor, and a control unit for operating the first and second switch.Type: GrantFiled: June 30, 2006Date of Patent: November 13, 2012Assignee: ABB Research Ltd.Inventors: Lennart Ängquist, Magnus Callavik, Willy Hermansson, Stefan Johansson, Gunnar Russberg, Jan R. Svensson
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Publication number: 20120274142Abstract: A battery energy storage system including a control unit and a plurality of battery units. The battery units are arranged in series, and each battery unit includes a semiconductor switch and a battery module including a plurality of battery cells. Each battery module is connected in series with a respective semiconductor switch, and the control unit is operatively connected to the semiconductor switch and adapted to control the semiconductor switch of every battery unit.Type: ApplicationFiled: June 22, 2012Publication date: November 1, 2012Inventors: Fredrik Tinglow, Jan Svensson, Magnus Backman, Willy Hermansson, Falah Hosini
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Publication number: 20120242153Abstract: A dc power source for a high voltage power apparatus, the dc power source including one or more strings including a plurality of dc power source units connected in series, and switches configured to connect and disconnect said strings. The switches are solid-state switches distributed among the power source units of each string, and all solid-state switches in the string are arranged so that they are turned on and off simultaneously. Each switch is connected in parallel with a first controllable semiconductor in a first direction and connected in parallel with a second controllable semiconductor in a second direction which is opposite to the first direction, and the dc power source includes a control unit configured to bypass a failed switch by triggering the forward biased of the first or second controllable semiconductor connected to the failed switch in case a fault in the switch is detected.Type: ApplicationFiled: June 8, 2012Publication date: September 27, 2012Inventors: Konstantinos Papastergiou, Willy Hermansson, Georgios Demetriades
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Patent number: 8198750Abstract: A battery unit arrangement for high voltage applications. The battery unit arrangement includes a battery unit having a battery chassis, and a switching device. The switching device includes switching mechanism for switching the battery chassis between two positions, a first position connecting the battery chassis to a pole of the battery uniti and a second position connecting the battery chassis to a zero potential. The invention also relates to a connection and disconnection arrangement and methods for operating such connection and disconnection arrangement.Type: GrantFiled: December 15, 2010Date of Patent: June 12, 2012Assignee: ABB Research Ltd.Inventors: Jan R. Svensson, Bertil Nygren, Falah Hosini, Gerhard Brosig, Gunnar Russberg, Willy Hermansson
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Publication number: 20110217575Abstract: A cassette for a battery stack, including a casing for a battery pack, which casing is made of a non-conducting material. The casing has a front side with an opening for receiving the battery pack. Preferably, the casing has a back side, opposite the front side, the back side being provided with electrical connections leading into the casing and arranged to connect to the poles of a battery pack when a battery pack is inserted into the casing through the front side. Arrangement of the cassettes is also provided, wherein the cassettes in the arrangement is placed in mechanical connection on top of each other.Type: ApplicationFiled: May 17, 2011Publication date: September 8, 2011Inventors: Willy Hermansson, Bertil Nygren, Falah Hosini, Fredrik Tinglow, Jan R. Svensson
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Publication number: 20110159349Abstract: Storage device for a high voltage electrical power including at least two modules connected in series, each module including at least one dc power-source in a container with positive and negative terminals. The device including positive and negative poles, first and second conductors arranged to form a current path between the poles, the first conductor including a plurality of conductor parts connected to the terminals of the modules to provide a series connection, a first module of the series being connected to one of the poles, and the second conductor is connected between a last module in the series and the other pole, wherein the conductors are arranged to pass through the containers in parallel such that a current flows through the first conductor in a first direction and through the second conductor in an opposite second direction.Type: ApplicationFiled: November 22, 2010Publication date: June 30, 2011Inventors: Tomas Larsson, Fredrik Tinglöw, Georgios Demetriades, Willy Hermansson, Konstantinos Papastergiou
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Publication number: 20110140529Abstract: A battery unit arrangement for high voltage applications. The battery unit arrangement includes a battery unit having a battery chassis, and a switching device. The switching device includes switching mechanism for switching the battery chassis between two positions, a first position connecting the battery chassis to a pole of the battery uniti and a second position connecting the battery chassis to a zero potential. The invention also relates to a connection and disconnection arrangement and methods for operating such connection and disconnection arrangement.Type: ApplicationFiled: December 15, 2010Publication date: June 16, 2011Inventors: Jan R. Svensson, Falah Hosini, Bertil Nygren, Gerhard Brosig, Gunnar Russberg, Willy Hermansson
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Publication number: 20110089763Abstract: The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.Type: ApplicationFiled: December 2, 2010Publication date: April 21, 2011Inventors: Jan R. Svensson, Georgios Demetriades, Bertil Nygren, Falah Hosini, Gerhard Brosig, Gunnar Russberg, Willy Hermansson
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Publication number: 20090317694Abstract: A temperature controller for providing heat to an energy storage device of a power compensator. The energy storage device includes a plurality of high temperature battery units on high potential. The temperature controller includes a pipe network for housing a heat transfer medium. The pipe network includes a main pipe loop and a local pipe loop in each battery unit. Each local pipe loop includes a first end for receiving a heat transfer medium and a second end for exhausting the medium.Type: ApplicationFiled: March 6, 2006Publication date: December 24, 2009Applicant: ABB Research Ltd.Inventors: Lennart Ängquist, Magnus Callavik, Gerhard Brosig, Willy Hermansson, Per Halvarsson, Stefan Johansson, Bertil Nygren, Gunnar Russberg, Jan R. Svensson
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Publication number: 20090309421Abstract: A power compensator for an electric power transmission line. The power compensator includes a voltage source converter, a capacitor and an energy storage device. The energy storage device includes a high voltage battery having a short circuit failure mode, a first main switch and second main switch for disconnecting the battery from the capacitor, and a control unit for operating the first and second switch.Type: ApplicationFiled: June 30, 2006Publication date: December 17, 2009Applicant: ABB Research Ltd.Inventors: Lennart Ängquist, Magnus Callavik, Willy Hermansson, Stefan Johansson, Gunnar Russberg, Jan R. Svensson
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Publication number: 20090234598Abstract: A charge controller of a high temperature battery for a power compensator of an electric power transmission line. The charge controller includes a sensor and a processor including a memory module. The charge controller includes a virtual battery model of the battery.Type: ApplicationFiled: March 6, 2006Publication date: September 17, 2009Applicant: ABB RESEARCH LTD.Inventors: Lennart Ängquist, Magnus Callavik, Gerhard Brosig, Willy Hermansson, Per Halvarsson, Stefan Johansson, Bertil Nygren, Gunnar Russberg, Jan R. Svensson
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Patent number: 6524900Abstract: A method for controlling the temperature dependence of a junction barrier Schottky diode of a semiconductor material having an energy gap between the valence band and the conduction band exceeding 2 eV provides for doing this when producing the diode by adjusting the on-state resistance of the grid portion of the diode during the production for obtaining a temperature dependence of the operation of the diode adapted to the intended use thereof.Type: GrantFiled: July 25, 2001Date of Patent: February 25, 2003Assignee: ABB Research, LTDInventors: Fanny Dahlqvist, Heinz Lendenmann, Willy Hermansson