Patents by Inventor Tobias Rösmann
Tobias Rösmann 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: 9702342Abstract: The invention relates to a wind turbine (1) with a pitch drive (3) for rotor blade adjustment, whereby the drive regulation (31) of the pitch drive (3) responds to disturbance torques (SM) during operation of the wind turbine (1) so as to have an equalizing effect, and the invention also relates to a corresponding method for the drive regulation (31). For this purpose, the wind turbine (1) comprises at least one load sensor (4) that is arranged in the vicinity of the pitch drive (3) in order to determine the mechanical load being exerted on the drive mechanism (A) due to a disturbance torque (SM), and said load sensor is also provided in order to emit a sensor signal (SS) corresponding to the mechanical load, and the drive regulation (31) comprises a feedback means (311) for the feedback (R) of an evaluated torque signal (BDS) on the basis of the sensor signal (SS).Type: GrantFiled: June 20, 2013Date of Patent: July 11, 2017Assignees: Moog Unna GmbH, Moog GmbHInventors: Bernhard Stehlin, Mirko Breitholz, Tobias Rösmann
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Publication number: 20170184074Abstract: A wind turbine temperature control system for maintaining the temperature of an energy storage device, the temperature control system has a breaking resistor for providing heat to the energy storage device and a power supply for causing a current to flow in the breaking resistor.Type: ApplicationFiled: December 21, 2016Publication date: June 29, 2017Inventor: Tobias Roesmann
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Publication number: 20170175708Abstract: A wind turbine comprising: a backup power supply, a processor and a first sensor unit and a second sensor unit configured to measure at least one of a voltage value and a current value, wherein the voltage value and current value are indicative of the condition of the backup power supply. The first sensor unit is configured to measure the at least one of the voltage value and the current value at a first location in the wind turbine, and the second sensor unit is configured to measure the at least one of the voltage value and the current value at a second location in the wind turbine different from the first location. The processor is configured to compare the at least one of the voltage value and current value measured by the first sensor unit with the at least one of the voltage value and current value measured by the second sensor unit; and to assign a level of confidence to the at least one of the voltage value and current value measured by the first sensor unit based on the comparison.Type: ApplicationFiled: December 15, 2016Publication date: June 22, 2017Inventor: Tobias Roesmann
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Publication number: 20150361956Abstract: The invention relates to a wind turbine (1) with a pitch drive (3) for rotor blade adjustment, whereby the drive regulation (31) of the pitch drive (3) responds to disturbance torques (SM) during operation of the wind turbine (1) so as to have an equalizing effect, and the invention also relates to a corresponding method for the drive regulation (31). For this purpose, the wind turbine (1) comprises at least one load sensor (4) that is arranged in the vicinity of the pitch drive (3) in order to determine the mechanical load being exerted on the drive mechanism (A) due to a disturbance torque (SM), and said load sensor is also provided in order to emit a sensor signal (SS) corresponding to the mechanical load, and the drive regulation (31) comprises a feedback means (311) for the feedback (R) of an evaluated torque signal (BDS) on the basis of the sensor signal (SS).Type: ApplicationFiled: June 20, 2013Publication date: December 17, 2015Inventors: Bernhard Stehlin, Mirko Breitholz, Tobias Rösmann
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Patent number: 9203290Abstract: A pitch drive device for a wind power or hydroelectric power station having a synchronous motor and a motor operation switchover unit for switching between a normal operation and emergency operation modes. To do so, the synchronous motor is operable in normal operation with three-phase AC and in emergency operation with DC. A method for operating a pitch drive device of this type is also disclosed.Type: GrantFiled: November 17, 2010Date of Patent: December 1, 2015Assignee: MOOG UNNA GMBHInventor: Tobias Roesmann
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Patent number: 9086048Abstract: A pitch drive device capable of emergency operation by adjusting the rotor blade pitch of a wind or water power plant. The pitch drive device includes an inverter device and a three-phase current drive motor preferably a three-phase IPM synchronous motor. A direct current power storage device can be substantially directly connected to an intermediate direct current circuit, at least for emergency operation, between a rectifier device and the inverter device for at least briefly supplying power to the synchronous motor, so that the IPM synchronous motor can be operated under speed control when the intermediate circuit voltage UZK is falling. The device enables speed-controlled emergency operation of the pitch drive device at high torque when an intermediate circuit voltage UZK is falling in emergency operation, wherein the direct current energy storage device can, improve the efficiency as an energy buffer, and reduce current transfer via the rotor slip ring.Type: GrantFiled: March 23, 2011Date of Patent: July 21, 2015Assignee: MOOG UNNA GMBHInventors: Tobias Roesmann, Lars Kauke
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Patent number: 9024588Abstract: An emergency power supply device is provided to supply emergency power to a direct voltage circuit. The direct voltage circuit has a first potential tap and a second potential tap, comprising an energy storage unit. The energy storage unit has a plus pole and a minus pole, and one of the poles is connected to the first potential tap via a first connection. The other pole is connected to the second potential tap via a second connection. At least one of the connections has a directional electric current meter and at least one of the connections has an interrupter. The directional electric current meter can measure a flow of charging current. The interrupter can prevent a flow of charging current, and the interrupter can be controlled as a function of the flow of charging current that has been measured.Type: GrantFiled: May 11, 2012Date of Patent: May 5, 2015Assignee: Moog Unna GmbHInventor: Tobias Rösmann
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Publication number: 20150008883Abstract: A method for charging an electric emergency energy storage device (1) comprising the following steps: predicting the energy demand EB of the energy consumer (2), determining the capacitance C of the emergency energy storage device (1) and the internal resistance Ri of the emergency energy storage device (1), calculating a charging voltage UL, whereby the charging voltage UL is calculated in such a way that the energy EC stored in the emergency energy storage device (1) at this charging voltage UL is just enough to meet the predicted energy demand EB, taking into account losses that occur, especially at the internal resistor Ri, and charging or discharging the emergency energy storage device (1) until the calculated charging voltage UL has been reached.Type: ApplicationFiled: July 7, 2014Publication date: January 8, 2015Inventors: Tobias Rösmann, Ray Opie, Björn Schreiner
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Publication number: 20130020804Abstract: A pitch drive device capable of emergency operation by adjusting the rotor blade pitch of a wind or water power plant. The pitch drive device includes an inverter device and a three-phase current drive motor preferably a three-phase IPM synchronous motor. A direct current power storage device can be substantially directly connected to an intermediate direct current circuit, at least for emergency operation, between a rectifier device and the inverter device for at least briefly supplying power to the synchronous motor, so that the IPM synchronous motor can be operated under speed control when the intermediate circuit voltage UZK is falling. The device enables speed-controlled emergency operation of the pitch drive device at high torque when an intermediate circuit voltage UZK is falling in emergency operation, wherein the direct current energy storage device can, improve the efficiency as an energy buffer, and reduce current transfer via the rotor slip ring.Type: ApplicationFiled: March 23, 2011Publication date: January 24, 2013Applicant: MOOG UNNA GMBHInventors: Tobias Roesmann, Lars Kauke
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Publication number: 20120294716Abstract: A pitch drive device for a wind power or hydroelectric power station having a synchronous motor and a motor operation switchover unit for switching between a normal operation and emergency operation modes. To do so, the synchronous motor is operable in normal operation with three-phase AC and in emergency operation with DC. A method for operating a pitch drive device of this type is also disclosed.Type: ApplicationFiled: November 17, 2010Publication date: November 22, 2012Applicant: MOOG UNNA GMBHInventor: Tobias Roesmann
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Publication number: 20120286738Abstract: An emergency power supply device is provided to supply emergency power to a direct voltage circuit. The direct voltage circuit has a first potential tap and a second potential tap, comprising an energy storage unit. The energy storage unit has a plus pole and a minus pole, and one of the poles is connected to the first potential tap via a first connection. The other pole is connected to the second potential tap via a second connection. At least one of the connections has a directional electric current meter and at least one of the connections has an interrupter. The directional electric current meter can measure a flow of charging current. The interrupter can prevent a flow of charging current, and the interrupter can be controlled as a function of the flow of charging current that has been measured.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: Moog Unna GmbHInventor: Tobias Rösmann
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Patent number: 8044528Abstract: A wind power facility includes an activation circuit for a speed-limited and voltage-source-protective operation of a pitch-drive series-wound motor at generator torques. The activation circuit can comprise a pitch-drive series-wound motor, in which armature winding and exciter winding are connectable separately from one another, a load resistor RII, which is switched essentially in series to the exciter winding and parallel to the armature winding, and a voltage source, such as a battery or accumulator. A first terminal contact of the armature winding can be connected via a first power converter component to a first terminal contact of the exciter winding and a first terminal contact of the load resistor, and the first terminal contact of the armature winding can be connected via a second power converter component to a second terminal contact of the exciter winding.Type: GrantFiled: October 14, 2008Date of Patent: October 25, 2011Assignee: Moog Unna GmbHInventor: Tobias Roesmann
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Publication number: 20090121485Abstract: A wind power facility includes an activation circuit for a speed-limited and voltage-source-protective operation of a pitch-drive series-wound motor at generator torques. The activation circuit can comprise a pitch-drive series-wound motor, in which armature winding and exciter winding are connectable separately from one another, a load resistor RII, which is switched essentially in series to the exciter winding and parallel to the armature winding, and a voltage source, such as a battery or accumulator. A first terminal contact of the armature winding can be connected via a first power converter component to a first terminal contact of the exciter winding and a first terminal contact of the load resistor, and the first terminal contact of the armature winding can be connected via a second power converter component to a second terminal contact of the exciter winding.Type: ApplicationFiled: October 14, 2008Publication date: May 14, 2009Applicant: LTi REENERGY GMBHHEINRICH-HERTZ-STRASSEInventor: Tobias Roesmann