US6906431B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind power system for Delivering constant apparent power
Assignee: Individual
•
Filing: 2001-11-15
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Granted: 2005-06-14
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Expires: 2021-11-15
Abstract
Abstract A wind power facility having a plurality of wind power installations, the wind power installations connected to a current voltage network into which the electrical current generated is fed or delivered that, independent of the currently prevailing amount of wind and the active power that is thus available from the wind power installation, a constant apparent power is always delivered into the network. A device for regulating the power to be delivered to a current voltage network is provided so that the regulation is so adjusted to have a constant apparent power always fed to the network.
Inventors
- 👤 Aloys Wobben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:21
CPC Classifications
F; F03; F03D; F03D7/00; F03D9/00; F03D9/20; F03D9/25; F03D9/255; F03D9/257; H; H02; H02J; H02J3/00; H02J3/38; H02J3/381; H02J3/46; H02J3/48; H02J3/50; F05; F05B; F05B2260/00; F05B2260/96; F05B2270/00; F05B2270/10; F05B2270/103; F05B2270/1033; H02J2101/00; H02J2101/20; H02J2101/28; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/76
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
47 words
A wind power system for delivering power to a network, comprising: a plurality of wind power installations having a device for regulating the power to be delivered to the network, wherein the regulation is so adjusted that a constant apparent power is always fed to the network.
Claim 2
Dependent Claim
47 words
A wind power system for delivering power to a network, comprising: a plurality of wind power installations having a device for regulating the power to be delivered to the network, wherein the regulation is so adjusted that a constant apparent power is always fed to the network.
Claim 3
Dependent Claim
53 words
The wind power system of claim 1 wherein the apparent power is calculated in accordance with the following formula: S=√{square root over (P 2 +Q 2 )} where S is the magnitude of the apparent power, P is the magnitude of the active power, and Q is the magnitude of the reactive power.
Claim 4
Dependent Claim
37 words
The wind power system of claim 2 wherein the device for regulating the power comprises a rectifier coupled to the wind power installations, a frequency converter coupled to the rectifier and controlled by a microprocessor coupled thereto.
Claim 5
Dependent Claim
55 words
A wind park for delivering electric power to a network, comprising: at least one wind power generator configured to generate active power in response to wind; a reactive power supply; and a regulating device coupled to the at least wind power generator and the reactive power supply for supplying constant apparent power to the network.
Claim 6
Dependent Claim
55 words
A wind park for delivering electric power to a network, comprising: at least one wind power generator configured to generate active power in response to wind; a reactive power supply; and a regulating device coupled to the at least wind power generator and the reactive power supply for supplying constant apparent power to the network.
Claim 7
Dependent Claim
60 words
The wind park of claim 4 wherein the regulating device is configured to supply constant apparent power to the network in accordance with the following formula: S=√{square root over (P 2 +Q 2 )} where S is the magnitude of the constant apparent power, P is the magnitude of the active power, and Q is the magnitude of reactive power.
Claim 8
Dependent Claim
70 words
The wind park of claim 5 wherein the regulating device comprises a rectifier coupled to the at least one wind power generator, a frequency converter coupled to an output of the rectifier, and a microprocessor coupled to an output of the frequency converter and having an output coupled to a control input of the frequency converter, the microprocessor configured to regulate reactive power in reciprocal relationship with the active power.
Claim 9
Dependent Claim
37 words
The wind park of claim 6 wherein the regulating device is further configured to combine active power and reactive power to increase total power output to the network in response to network demand for increased total power.
Claim 10
Dependent Claim
16 words
The wind park of claim 4 wherein the reactive power supply comprises a capacitive power supply.
Claim 11
Dependent Claim
16 words
The wind park of claim 4 wherein the reactive power supply comprises an inductive power supply.
Claim 12
Independent Claim
76 words
A method of supplying constant apparent power to a network coupled to a wind power installation having at least one wind-powered generator, the method comprising: configuring the at least one wind-powered generator to generate active power in response to wind; rectifying the active power from the at least one wind-powered generator; converting the rectified power; supplying reactive power; and regulating the active power and the reactive power to output a constant apparent power to the network.
Claim 13
Independent Claim
76 words
A method of supplying constant apparent power to a network coupled to a wind power installation having at least one wind-powered generator, the method comprising: configuring the at least one wind-powered generator to generate active power in response to wind; rectifying the active power from the at least one wind-powered generator; converting the rectified power; supplying reactive power; and regulating the active power and the reactive power to output a constant apparent power to the network.
Claim 14
Dependent Claim
24 words
The method of claim 10 wherein the reactive power is regulated in reciprocal relationship with the active power to achieve the constant apparent power.
Claim 15
Dependent Claim
55 words
The method of claim 10 wherein the active power and the reactive power are regulated in accordance with the following formula: S=√{square root over (P 2 +Q 2 )} where S is the magnitude of the apparent power, P is the magnitude of the active power, and Q is the magnitude of the reactive power.
Claim 16
Dependent Claim
32 words
The method of claim 10 wherein regulating further comprises combining active power and reactive power to increase total power output to the network in response to network demand for increased total power.
Claim 17
Independent Claim
175 words
A device for regulating power generated from a wind power installation for delivery to a network, the device comprising: a rectifier coupled to the wind power installation to receive power generated in response to wind and to output dc voltage; a frequency converter coupled to the rectifier and configured to receive the dc voltage from the rectifier and to convert the dc voltage into an ac voltage that is output to the network; and a control device coupled to the output of the frequency converter and having an output coupled to a control input of the frequency converter, the control device configured to regulate the frequency converter to output constant apparent power to the network that comprises active power from the dc voltage at the rectifier output with reactive power from a reactive power supply in accordance with the following formula: S=√{square root over (P 2 +Q 2 )} where S is the magnitude of the apparent power; P is the magnitude of the active power, and Q is the magnitude of the reactive power.
Claim 18
Independent Claim
175 words
A device for regulating power generated from a wind power installation for delivery to a network, the device comprising: a rectifier coupled to the wind power installation to receive power generated in response to wind and to output dc voltage; a frequency converter coupled to the rectifier and configured to receive the dc voltage from the rectifier and to convert the dc voltage into an ac voltage that is output to the network; and a control device coupled to the output of the frequency converter and having an output coupled to a control input of the frequency converter, the control device configured to regulate the frequency converter to output constant apparent power to the network that comprises active power from the dc voltage at the rectifier output with reactive power from a reactive power supply in accordance with the following formula: S=√{square root over (P 2 +Q 2 )} where S is the magnitude of the apparent power; P is the magnitude of the active power, and Q is the magnitude of the reactive power.
Claim 19
Dependent Claim
48 words
The device of claim 14 wherein the control device comprises a microprocessor configured to regulate voltage supplied to the network as well as current and phase in response to inputs comprising the apparent power S, the active power P, a reactive power factor, and a power gradient dP/dT.
Claim 20
Dependent Claim
36 words
The device of claim 14 wherein the control device is configured to combine active power and reactive power to increase total output voltage to the network in response to network demands for increased total voltage output.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2008-06-13 | 2008-12-13 | 2009-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-06-13 | 2012-12-13 | 2013-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-06-13 | 2016-12-13 | 2017-06-14 | $7700.00 | Window Closed / Lapsed |