[특허]Method and apparatus for determining wind farm electricity production

Airtricity Holdings Limited

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Method and apparatus for determining wind farm electricity production

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G05D-003/12
미국특허분류(USC)	702/003; 700/291; 700/286; 705/412; 290/044; 290/055
출원번호	US-0741501 (2007-04-27)
등록번호	US-7403854 (2008-07-22)
발명자 / 주소	Hurley,Brian King,Ciaran
출원인 / 주소	Airtricity Holdings Limited
대리인 / 주소	Muraff,James P.
인용정보	피인용 횟수 : 11 인용 특허 : 1

초록
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A method and apparatus for providing wind farm electricity production values is described. Such an arrangement is useful in providing an indication of potential electricity production values from a test site where there is limited meteorological data available. By associating the test site with a reference site for which there is extended data available, it is possible to utilize the data from the reference site to provide an estimate of future wind conditions and hence the potential wind resource that can be utilized in the production of electricity fro...

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The invention claimed is: 1. A method for determining wind farm electricity production, the method comprising the steps of: a. identifying a wind farm test site and a corresponding reference site for which historical meteorological data is available; b. collecting meteorological data sets representative of wind speed and direction for both of the test and reference site for a specific time period; c. sectorising the collected data sets for each of the reference and test site into two or more direction sectors representative of the wind direction comprising establishing a wind veer quanta representative of offsets in wind direction between wind data collected proximate in time at each of the test and reference sites; d. for each direction sector sorting the wind speeds within that sector into a ranked order so as to provide a sorted data set for each sector of each of the reference and test sites; e. establishing a relationship between the sorted data sets in corresponding test and reference site sectors; f. using the established relationship to provide an estimation of future meteorological conditions at the test site; and, g. using the estimation of future meteorological conditions at the test site to determine the electricity production for that site. 2. The method of claim 1 wherein the step of sorting the wind speeds includes establishing a cut off value for which wind speeds below a certain value are discarded in the subsequent establishment of the relationships. 3. The method of claim 2 wherein the step of establishing the cut off value is made with reference to the reference site only, the method including discarding, within the test site data, the same number of values as are discarded within the reference site data. 4. The method of claim 3 wherein the cut off value is a dynamic value generated as a result of the number of data set points within the reference data set. 5. The method of claim 1 wherein the step of establishment a wind veer quanta is effected on data set that has been reduced by discarding values below a determined cut off value. 6. The method of claim 5 wherein the cut off value is related to the operational performance of wind turbines which are to be used on the test site. 7. An apparatus for determining wind farm electricity production, the apparatus comprising: a. a first data store including data representative of wind speed and direction for a reference site, the reference site having meteorological data defined within a first time period; b. a second data store having data representative of wind speed and direction for at least one test site, at least one test site having meteorological data defined within a second time period, the second time period being less than the first time period; c. computer logic configured to interface with both the first and second data stores to provide a sectorising of the data within each of the first and second data stores into two or more direction sectors representative of the wind direction; d. computer logic configured to interface with the data within each direction sector to effect a sorting of the wind speeds within that sector into a ranked order so as to provide a sorted data set for each sector of each of the reference and test sites; e. computer logic configured to establish a relationship between the sorted data sets in corresponding test and reference site sectors; f. computer logic configured to use the established relationship to provide an estimation of future meteorological conditions at the test site; g. computer logic configured to use the estimation of future meteorological conditions at the test site to determine the electricity production for that site; and h. computer logic configured to establish a wind veer quanta representative of offsets in wind direction between wind data collected proximate in time at each of the test and reference sites for each of the two or more direction sectors. 8. The apparatus of claim 7 wherein the computer logic configured to effect a sorting of the wind speeds includes logic configured to provide a cut off value for which wind speeds below a certain value are discarded in the subsequent establishment of the relationships. 9. The apparatus of claim 8 wherein the computer logic is configured to establish the cut off value with reference to the reference site only, the logic being further configured to effect a discard within the test site data of the same number of values as are discarded within the reference site data. 10. The apparatus of claim 8 wherein the cut off value is a dynamic value generated as a proportion of the number of data set points within the reference data set. 11. The apparatus of claim 7 wherein the computer logic configured to establish the wind veer quanta is operable on a data set that has been reduced by effecting a discard of values below a determined cut off value from within each of the reference and test data stores. 12. The apparatus of claim 11 wherein the computer logic utilizes a cut off value that is related to the operational performance of wind turbines which are to be used on the test site. 13. The apparatus of claim 7 wherein the reference data store is useable for plurality of test sites. 14. An apparatus configured to provide an estimate of electricity production from one or more test sites for which meteorological data is limited, the apparatus being configured to compare data collected from the one or more data test sites with data collected from a corresponding time period from a reference site, the comparison comprising sorting of wind speed data from each of the test sites and reference site into ranked data sets such that a wind frequency distributions for each of the test sites and reference site are established, the ranked data sets being separated into two or more direction sectors representative of the wind direction and comprising establishing a wind veer quanta representative of offsets in wind direction between wind data collected proximate in time at each of the test and reference sites, the apparatus being further configured to establish a relationship between data concurrently collected at each of the test and reference sites to provide an interrelationship between the respective sites and to use that interrelationship, in combination with historical data from the reference site, to provide an indication of future meteorological conditions at the one or more test sites, the future meteorological conditions being related to the potential electricity production from the respective test sites. 15. A computer program which when run on a computer is configured to carry out the following steps: h. collect meteorological data sets representative of wind speed and direction for both of a test and reference site for a specific time period; i. sectorise the collected data sets for each of the reference and test site into two or more direction sectors representative of the wind direction comprising establishing a wind veer quanta representative of offsets in wind direction between wind data collected at the same time at each of the test and reference sites; j. for each direction sector sort the wind speeds within that sector into a ranked order so as to provide a sorted data set for each sector of each of the reference and test sites; k. establish a relationship between the sorted data sets in corresponding test and reference site sectors; l. use the established relationship to provide an estimation of future meteorological conditions at the test site; and, m. use the estimation of future meteorological conditions at the test site to determine the electricity production for that site.

이 특허에 인용된 특허 (1)

Lof, Per-Anders Kristian; Gertmar, Lars Gustaf Ingolf; Andren, Lars Anders Tommy. System, method and computer program product for enhancing commercial value of electrical power produced from a renewable energy power production facility. USP2003016512966.

이 특허를 인용한 특허 피인용횟수: 11

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Method and apparatus for determining wind farm electricity production

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Method and apparatus for determining wind farm electricity production

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