風資源數(shù)據(jù)處理

1、 風資源測量與評估實務測風數(shù)據(jù)處理與驗證 測風數(shù)據(jù)處理測風數(shù)據(jù)處理包括對數(shù)據(jù)的驗證、訂正，并計算評估風資源所需要的參數(shù)。1 數(shù)據(jù)驗證 數(shù)據(jù)的驗證是檢查風場測風獲得的原始數(shù)據(jù)，對其完整性和合理性進行判斷。經(jīng)過初步檢驗和審查，沒有發(fā)現(xiàn)不合理的數(shù)據(jù)和缺測的數(shù)據(jù)。2 數(shù)據(jù)檢驗(1). 完整性檢驗數(shù)據(jù)數(shù)量與時間順序應與預期數(shù)據(jù)一致。(2). 合理性檢驗 范圍檢驗主要參數(shù)合理范圍平均風速0 小時平均值40m/s風向0小時平均值360平均氣壓94kpa<小時平均值<106kpa相關性檢驗50m/30m高度小時平均風速差值<2.0m/s50m/10m高度小時平均風速差值<4.

2、0m/s50m/30m高度風向差值<22.5趨勢檢驗1h平均風速變化<6m/m3很平均氣壓變化<1kpa1h平均溫度變化<5所有數(shù)據(jù)均在同一高度，故無需相關性檢查。另外，要仔細判別并處理不合理數(shù)據(jù)。有效數(shù)據(jù)完整率=有效數(shù)據(jù)完整率要達到90%。三. 數(shù)據(jù)訂正 根據(jù)長期測站的觀測數(shù)據(jù)，將測風數(shù)據(jù)訂正為一套反映風場 長期平均水平的代表性數(shù)據(jù) ，即風場測風高度上代表年的逐小時風 速風向數(shù)據(jù)。四.數(shù)據(jù)處理將訂正后的數(shù)據(jù)處理成 評估風場風能資源所需要的各種參數(shù) ，包括不同時段的平均風速和風功率密度、風速頻率分布、風向頻率等。.（1）平均風速 月平均、年平均；個月同一鐘點平均、全年同

3、一鐘點平均。（2） 風功率密度Dwp-平均風功率密度，W/m2n-在設定時段內(nèi)的記錄數(shù)-空氣密度，kg/m3-第i記錄的風速（m/s）值的立方平均風功率密度的計算應是設定時段內(nèi)逐小時風功率密度的平均值，不可用年（或月）平均風功率密度。Dwp中的必須是當?shù)啬昶骄嬎阒?。它取決于溫度和壓力，空氣密度可按照如下公式進行計算：（一般取1.025）-空氣密度，kg/m3P-年平均大氣壓力，PaR-氣體常數(shù)（287J/kgK）T-年平均空氣開氏溫標絕對溫度綜合以上數(shù)據(jù)，再畫出風速、風功率密度折線圖然后算出風向頻率畫出風玫瑰圖。每日每時平均風速日期/時間1112131415161718192000.961.

4、340.490.080.900.351.330.750.502.1911.531.220.090.161.460.601.430.380.401.4321.371.230.590.200.730.581.590.660.851.8031.641.340.370.091.241.211.510.150.611.2041.761.370.590.021.311.391.310.780.901.7851.841.431.030.131.280.471.220.261.361.6261.831.510.940.211.090.701.450.481.471.2371.881.481.760.100.5

5、70.601.450.221.941.1782.071.401.550.150.700.711.040.791.361.7791.791.701.500.390.911.530.820.701.491.67102.121.571.160.731.401.270.790.991.531.44111.941.641.821.640.710.811.300.990.902.22122.111.431.780.930.921.072.220.651.181.34132.351.951.240.881.171.082.231.861.401.82141.871.871.341.111.090.912.2

6、61.501.322.50151.941.640.981.061.150.742.291.331.162.71161.671.511.090.360.860.642.071.290.532.18171.781.760.940.390.660.791.491.560.611.92181.281.540.160.010.111.231.110.940.241.15191.840.680.070.140.001.611.400.811.150.97201.800.780.220.670.001.540.790.861.450.90211.610.470.101.240.001.170.670.371

7、.230.64221.450.360.101.240.180.840.950.191.100.05231.410.720.070.710.431.241.370.290.610.15日期/風向11121314151617181920(N)5545511871610249608481278393(NNE)1611681412064102314668(NE)1181151010217352131851(ENE)10110086049475123854(E)72118108417135554418124(ESE)62479128519275433666108(SE)31294138179146212

8、223023(SSE)9544832796318410(S)7401063559723(SSW)54277330314(SW)42123458207811(WSW)15130764143205(W)4256402052306(WNW)1292002833510833310(NW)48567559685351337165(NWN)0000000000每日每時風功率密度日期/時間11日12日13日14日15日16日17日18日19日20日0時1.222.223.224.225.226.227.228.229.2210.221時2.223.224.225.226.227.228.229.2210.2

9、211.222時3.224.225.226.227.228.229.2210.2211.2212.223時4.225.226.227.228.229.2210.2211.2212.2213.224時5.226.227.228.229.2210.2211.2212.2213.2214.225時6.227.228.229.2210.2211.2212.2213.2214.2215.226時7.228.229.2210.2211.2212.2213.2214.2215.2216.227時8.229.2210.2211.2212.2213.2214.2215.2216.2217.228時9.2210.

10、2211.2212.2213.2214.2215.2216.2217.2218.229時10.2211.2212.2213.2214.2215.2216.2217.2218.2219.2210時11.2212.2213.2214.2215.2216.2217.2218.2219.2220.2211時12.2213.2214.2215.2216.2217.2218.2219.2220.2221.2212時13.2214.2215.2216.2217.2218.2219.2220.2221.2222.2213時14.2215.2216.2217.2218.2219.2220.2221.2222.2

11、223.2214時15.2216.2217.2218.2219.2220.2221.2222.2223.2224.2215時16.2217.2218.2219.2220.2221.2222.2223.2224.2225.2216時17.2218.2219.2220.2221.2222.2223.2224.2225.2226.2217時18.2219.2220.2221.2222.2223.2224.2225.2226.2227.2218時19.2220.2221.2222.2223.2224.2225.2226.2227.2228.2219時20.2221.2222.2223.2224.222

12、5.2226.2227.2228.2229.2220時21.2222.2223.2224.2225.2226.2227.2228.2229.2230.2221時22.2223.2224.2225.2226.2227.2228.2229.2230.2231.2222時23.2224.2225.2226.2227.2228.2229.2230.2231.2232.2223時24.2225.2226.2227.2228.2229.2230.2231.2232.2233.22五.總結 通過這次風資源測量評估課程的數(shù)據(jù)訂正與處理，使我們熟悉了對所測量的風能數(shù)據(jù)進行處理和分析的過程，掌握了對驗證完成的數(shù)據(jù)經(jīng)過各種處理程序來評估風能資源的評估，也學習了風能估算和風力發(fā)電機組微觀選址軟件WAsP,初步學會了計算和輸出相應的風能參數(shù)。  我們小組所處理的是10天的按每分鐘記錄工一樓上的風速、溫度、風向、濕度以及大氣壓的原始數(shù)據(jù)，總數(shù)據(jù)為14400個，工作量很大，但我們小組分工明確，秉著嚴謹?shù)墓ぷ鲬B(tài)度，一絲不茍的將每個數(shù)據(jù)仔細分析、計算，雖然在計算過程中遇到了一些問題，但我們沒有放棄，我們會相互討論，也會在網(wǎng)上尋找答案，最終解決了各種困難，經(jīng)過幾天的努力，龐大的數(shù)據(jù)終于處理完了，我們得出了每日每小時風速的分布圖線，每日每小時的風功率密度圖線，和每天的風能玫瑰圖，最終，我們很順利的