Method for Early Error Detection in a Drive System, a System for Early Error Detection, Wind Generator Comprising the System and Use of the System
First Claim
1. A system for early error detection in a drive system of a wind generator comprising:
- a) a first rotation sensor, which is coupled to an input shaft of a the drive gear or transmission stage, to sense an input angle of rotation,b) a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage, to sense an output angle of rotation, wherein the output angle of rotation is an output of the drive gear or transmission stage, which is performed in response to the input angle of rotation,c) a control unit, which is configured to simultaneously capture a first time dependent signal for the input angle of rotation from the first rotation sensor and a second time dependent signal for the output angle of rotation from the second rotation sensor, wherein the control unit is further configured to determine a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage, and wherein the control unit is further configured to analyze this time dependent angle difference to perform an early error detection in the drive system.
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Abstract
A system for early error detection in a wind generator drive system includes a first rotation sensor that is coupled to an input shaft of a drive gear or transmission stage to capture an input angle of rotation. A second rotation sensor is coupled to an output shaft of the drive gear or transmission stage to capture an output angle, which is performed in response to the input angle. A control unit is configured to simultaneously capture a first and a second time dependent signal, which are indicative of the input angle and the output angle, respectively. The control unit is configured to determine a time dependent angle difference from the first and the second signals under consideration of a transmission ratio of the drive gear or transmission stage, and analyzes this difference to perform early error detection in the drive system.
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Citations
15 Claims
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1. A system for early error detection in a drive system of a wind generator comprising:
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a) a first rotation sensor, which is coupled to an input shaft of a the drive gear or transmission stage, to sense an input angle of rotation, b) a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage, to sense an output angle of rotation, wherein the output angle of rotation is an output of the drive gear or transmission stage, which is performed in response to the input angle of rotation, c) a control unit, which is configured to simultaneously capture a first time dependent signal for the input angle of rotation from the first rotation sensor and a second time dependent signal for the output angle of rotation from the second rotation sensor, wherein the control unit is further configured to determine a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage, and wherein the control unit is further configured to analyze this time dependent angle difference to perform an early error detection in the drive system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wind generator, in particular an offshore wind generator comprising:
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a drive system; and a system for early error detection including a first rotation sensor, which is coupled to an input shaft of a drive gear or transmission stage, to sense an input angle of rotation, a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage, to sense an output angle of rotation, wherein the output angle of rotation is an output of the drive gear or transmission stage, which is performed in response to the input angle of rotation, a control unit, which is configured to simultaneously capture a first time dependent signal for the input angle of rotation from the first rotation sensor and a second time dependent signal for the output angle of rotation from the second rotation sensor, wherein the control unit is further configured to determine a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage, and wherein the control unit is further configured to analyze this time dependent angle difference to perform an early error detection in the drive system.
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9. A method for using an early error detection system comprising a wind generator, in particular in an offshore wind generator, comprising:
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using a first rotation sensor, which is coupled to an input shaft of a drive gear or transmission stage, to sense an input angle of rotation, using a second rotation sensor, which is coupled to an output shaft of the drive gear or transmission stage, to sense an output angle of rotation, wherein the output angle of rotation is an output of the drive gear or transmission stage, which is performed in response to the input angle of rotation, using a control unit, which is configured to simultaneously capture a first time dependent signal for the input angle of rotation from the first rotation sensor and a second time dependent signal for the output angle of rotation from the second rotation sensor, wherein the control unit is further configured to determine a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage, and wherein the control unit is further configured to analyze this time dependent angle difference to perform an early error detection in the drive system.
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10. A method for early error detection in a drive system of a wind generator including the steps of:
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a) capturing a first time dependent signal, which is indicative of an input angle of rotation of an input shaft of a drive gear or transmission stage, b) simultaneously capturing a second time dependent signal, which is indicative of an output angle of rotation of an output shaft of the drive gear or transmission stage, c) determining a time dependent angle difference from the first and the second time dependent signals under consideration of a transmission ratio of the drive gear or transmission stage and d) analyzing the time dependent angle difference to perform an early error detection in the drive system. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification