风资源数据处理.docx

1、风资源数据处理 风资源测量与评估实务测风数据处理与验证 测风数据处理测风数据处理包括对数据的验证、订正，并计算评估风资源所需要的参数。1数据验证 数据的验证是检查风场测风获得的原始数据，对其完整性和合理性进行判断。经过初步检验和审查，没有发现不合理的数据和缺测的数据。2数据检验(1). 完整性检验数据数量与时间顺序应与预期数据一致。(2). 合理性检验 范围检验主要参数合理范围平均风速0小时平均值40m/s风向0小时平均值360平均气压94kpa小时平均值106kpa相关性检验50m/30m高度小时平均风速差值2.0m/s50m/10m高度小时平均风速差值4.0m/s50m/30m高度风向差值

2、22.5趋势检验1h平均风速变化6m/m3很平均气压变化1kpa1h平均温度变化5所有数据均在同一高度，故无需相关性检查。另外，要仔细判别并处理不合理数据。有效数据完整率=有效数据完整率要达到90%。三. 数据订正 根据长期测站的观测数据，将测风数据订正为一套反映风场 长期平均水平的代表性数据 ，即风场测风高度上代表年的逐小时风 速风向数据。四.数据处理将订正后的数据处理成 评估风场风能资源所需要的各种参数 ，包括不同时段的平均风速和风功率密度、风速频率分布、风向频率等。.（1）平均风速 月平均、年平均；个月同一钟点平均、全年同一钟点平均。（2）风功率密度Dwp-平均风功率密度，W/m2n-在

3、设定时段内的记录数-空气密度，kg/m3-第i记录的风速（m/s）值的立方平均风功率密度的计算应是设定时段内逐小时风功率密度的平均值，不可用年（或月）平均风功率密度。Dwp中的必须是当地年平均计算值。它取决于温度和压力，空气密度可按照如下公式进行计算：（一般取1.025）-空气密度，kg/m3P-年平均大气压力，PaR-气体常数（287J/kgK）T-年平均空气开氏温标绝对温度综合以上数据，再画出风速、风功率密度折线图然后算出风向频率画出风玫瑰图。每日每时平均风速日期/时间1112131415161718192000.961.340.490.080.900.351.330.750.502.19

4、11.531.220.090.161.460.601.430.380.401.4321.371.230.590.200.730.581.590.660.851.8031.641.340.370.091.241.211.510.150.611.2041.761.370.590.021.311.391.310.780.901.7851.841.431.030.131.280.471.220.261.361.6261.831.510.940.211.090.701.450.481.471.2371.881.481.760.100.570.601.450.221.941.1782.071.401.55

5、0.150.700.711.040.791.361.7791.791.701.500.390.911.530.820.701.491.67102.121.571.160.731.401.270.790.991.531.44111.941.641.821.640.710.811.300.990.902.22122.111.431.780.930.921.072.220.651.181.34132.351.951.240.881.171.082.231.861.401.82141.871.871.341.111.090.912.261.501.322.50151.941.640.981.061.1

6、50.742.291.331.162.71161.671.511.090.360.860.642.071.290.532.18171.781.760.940.390.660.791.491.560.611.92181.281.540.160.010.111.231.110.940.241.15191.840.680.070.140.001.611.400.811.150.97201.800.780.220.670.001.540.790.861.450.90211.610.470.101.240.001.170.670.371.230.64221.450.360.101.240.180.840

7、.950.191.100.05231.410.720.070.710.431.241.370.290.610.15日期/风向11121314151617181920(N)5545511871610249608481278393(NNE)1611681412064102314668(NE)1181151010217352131851(ENE)10110086049475123854(E)72118108417135554418124(ESE)62479128519275433666108(SE)31294138179146212223023(SSE)9544832796318410(S)7401

8、063559723(SSW)54277330314(SW)42123458207811(WSW)15130764143205(W)4256402052306(WNW)1292002833510833310(NW)48567559685351337165(NWN)0000000000每日每时风功率密度日期/时间11日12日13日14日15日16日17日18日19日20日0时1.222.223.224.225.226.227.228.229.2210.221时2.223.224.225.226.227.228.229.2210.2211.222时3.224.225.226.227.228.229.

9、2210.2211.2212.223时4.225.226.227.228.229.2210.2211.2212.2213.224时5.226.227.228.229.2210.2211.2212.2213.2214.225时6.227.228.229.2210.2211.2212.2213.2214.2215.226时7.228.229.2210.2211.2212.2213.2214.2215.2216.227时8.229.2210.2211.2212.2213.2214.2215.2216.2217.228时9.2210.2211.2212.2213.2214.2215.2216.2217

10、.2218.229时10.2211.2212.2213.2214.2215.2216.2217.2218.2219.2210时11.2212.2213.2214.2215.2216.2217.2218.2219.2220.2211时12.2213.2214.2215.2216.2217.2218.2219.2220.2221.2212时13.2214.2215.2216.2217.2218.2219.2220.2221.2222.2213时14.2215.2216.2217.2218.2219.2220.2221.2222.2223.2214时15.2216.2217.2218.2219.2220.2221.2222.2223.2224.2215时16.2217.2218.2219.2220.2221.2222.2223.2224.2225.2216时17.2218.2219.2220.2221.2222.2223.2224.2225.2226.2217时18.2219.2220.2221.2222.2223.2224.2225.2226.2227.2218时19.2220.2221.2222.2223.2224.2225.2226.2227.2228.2219时20.2221.2222.2223.2224.2225.2226.2227.2228.2229.2220时21