CA2315003C
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Wind turbine and method for operating a wind turbine
Assignee: Individual
•
Filing: 1998-12-18
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Granted: 2005-06-28
•
Expires: 2018-12-18
Abstract
Abstract The present invention concerns a method of operating a wind power installation comprising an electric generator drivable by a rotor for outputting electrical power to an electrical consumer, in particular an electrical network. The invention further concerns a wind power installation comprising a rotor and an electric generator coupled to the rotor for outputting electric power to an electrical consumer, in particular an electrical network. The object of the present invention is to provide a method of operating a wind power installation, and a wind power installation, which avoid the disadvantages of the state of the art and in particular avoid voltage over-fluctuations at the consumer, in particular an electrical network, and unwanted shut-down of the wind power installation. In a method of the kind set forth in the opening part of this specification, that object is attained by the invention in that the power delivered to the network by the wind power generator is regulated in dependence on the applied network voltage of the power supply network.</SDOA B>
Inventors
- 👤 Aloys Wobben
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-31 12:34
CPC Classifications
F; F03; F03D; F03D7/00; F03D7/02; F03D7/04; F03D7/042; F03D7/028; F03D7/0284; F03D7/043; F03D9/00; F03D9/20; F03D9/25; F03D9/255; H; H02; H02J; H02J3/00; H02J3/38; H02J3/381; H02P; H02P9/00; H02P9/10; H02P9/107; H02P9/14; H02P9/26; H02P9/30; H02P9/305; F05; F05B; F05B2270/00; F05B2270/10; F05B2270/103; F05B2270/1033; F05B2270/20; F05B2270/30; F05B2270/337; H02J2101/00; H02J2101/20; H02J2101/28; H02P2101/00; H02P2101/15; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/76
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
89 words
A method of operating a wind power installation including an electrical generator driven by a rotor for supplying electrical power to an electrical network having a network voltage and being connected to a customer, comprising sensing said network voltage; supplying electrical power to the electrical network at a supplied power level in accordance with said network voltage; and reducing said supplied power level to a lower level when said network voltage exceeds a first threshold value (U1) or when said network voltage falls below a second threshold value (U0).
Claim 2
Independent Claim
89 words
A method of operating a wind power installation including an electrical generator driven by a rotor for supplying electrical power to an electrical network having a network voltage and being connected to a customer, comprising sensing said network voltage; supplying electrical power to the electrical network at a supplied power level in accordance with said network voltage; and reducing said supplied power level to a lower level when said network voltage exceeds a first threshold value (U1) or when said network voltage falls below a second threshold value (U0).
Claim 3
Dependent Claim
36 words
The method of claim 1 wherein said generator is capable of generating said electrical power at a nominal power level dependent on current wind conditions, wherein said lower level is lower than said nominal power level.
Claim 4
Dependent Claim
42 words
The method of claim 1 wherein said step of reducing said supplied power level includes reducing said supplied power level gradually as said network voltage increases above said first threshold (U1) or as said network voltage decreases below said second threshold (U0).
Claim 5
Dependent Claim
35 words
The method of claim 3 wherein said step of reducing said supplied power level includes reducing said electrical power level to a zero level when said network voltage reaches a third threshold value (U max).
Claim 6
Dependent Claim
33 words
The method of claim 4 wherein said step of reducing further comprises maintaining said supplied power level at said zero level as said network voltage rises above said third threshold level (U max).
Claim 7
Dependent Claim
49 words
The method of claim 3 wherein said step of reducing said electrical power includes reducing said electrical power linearly as said network voltage increases between said first and third threshold (U1, U max) or as said network voltage decreases between said second and a fourth threshold (U0, U min).
Claim 8
Dependent Claim
27 words
The method of claim 1 wherein said sensing includes sensing said network voltage at the point at which said electrical power is fed to said electrical network.
Claim 9
Dependent Claim
14 words
The method of claim 1 further generating said electrical power at a predeterminable frequency.
Claim 10
Dependent Claim
24 words
The method of claim 8 wherein said electrical network is operating at a network frequency, wherein predeterminable frequency corresponds substantially to said network frequency.
Claim 11
Dependent Claim
110 words
A wind power installation for delivering electrical power to an electrical network comprising: a rotor rotated by wind; an electrical generator coupled to said rotor and adapted to supply electrical power at a supplied power level to the electrical network; and a regulating device having a voltage sensor for sensing a network voltage associated with the electrical network, said regulating device being coupled to said electrical generator to control said power level in accordance with said network voltage, wherein said regulating device is adapted to reduce said supplied power level when said network voltage exceeds a first level (U1) or when said network voltage falls below a second level (U0).
Claim 12
Dependent Claim
110 words
A wind power installation for delivering electrical power to an electrical network comprising: a rotor rotated by wind; an electrical generator coupled to said rotor and adapted to supply electrical power at a supplied power level to the electrical network; and a regulating device having a voltage sensor for sensing a network voltage associated with the electrical network, said regulating device being coupled to said electrical generator to control said power level in accordance with said network voltage, wherein said regulating device is adapted to reduce said supplied power level when said network voltage exceeds a first level (U1) or when said network voltage falls below a second level (U0).
Claim 13
Dependent Claim
17 words
The wind power installation as set forth in claim 10 wherein said regulating device has a microprocessor.
Claim 14
Dependent Claim
65 words
The wind power installation as set forth in claim 10 wherein said regulating device is adapted to reduce said supplied power level from a first power level to a second power level as said network voltage increases from said first level (U1) to a third level (U max) or as said network voltage decreases from a second level (U0) to a fourth level (U min).
Claim 15
Dependent Claim
31 words
The wind power installation as set forth in claim 12 wherein said regulating device is adapted to reduce said supplied power level from said first to said second power level linearly.
Claim 16
Dependent Claim
17 words
The wind power installation as set forth in claim 13 wherein said second power level is zero.
Claim 17
Independent Claim
86 words
A method of operating a wind power installation including an electric generator for supplying electrical power to an electrical network, the electrical network being connected to at least one consumer and having a network voltage that fluctuates with demand, said method comprising: supplying electrical power from said electrical generator to said electrical network at a supplied power level; and regulating said supplied power level to protect said network from over-voltage by reducing said supplied power level when said network voltage exceeds a first threshold value (U1).
Claim 18
Independent Claim
86 words
A method of operating a wind power installation including an electric generator for supplying electrical power to an electrical network, the electrical network being connected to at least one consumer and having a network voltage that fluctuates with demand, said method comprising: supplying electrical power from said electrical generator to said electrical network at a supplied power level; and regulating said supplied power level to protect said network from over-voltage by reducing said supplied power level when said network voltage exceeds a first threshold value (U1).
Claim 19
Dependent Claim
41 words
The method as set forth in claim 15 wherein said supplied power level is regulated by reducing said supplied power level to a zero level as said network voltage increases from said first value (U1) to a third value (U max).
Claim 20
Dependent Claim
16 words
The method as set forth in claim 16 wherein said supplied power level is reduced linearly.
Claim 21
Dependent Claim
30 words
The method as set forth in claim 16 wherein said supplied power level is maintained at a threshold level as said network voltage increases above said third value (U max).
Claim 22
Dependent Claim
14 words
The method as set forth in claim 18 wherein said threshold level is zero.
Claim 23
Dependent Claim
44 words
The method of claim 15 further comprising increasing said supplied power level as said network voltage increases from a fourth level (U min) to a second level (U0), said fourth and second levels (U min) and (U0) being smaller than said first level (U1).
Claim 24
Dependent Claim
23 words
The method of claim 15 wherein said supplied power level is maintained constant when said network voltage is below said first level (U1).
Claim 25
Dependent Claim
39 words
The method of claim 15 wherein said supplied power level is maintained constant when said network voltage is between said second level (U0) and said first level (U1), said second level (U0) being lower than said first level (U1).
References Cited (Backward Citations)
No citation records indexed.
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