processding59.pdf - page 291

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êćøćÜìĊęǰ9 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤ ÝćÖøąđïĊ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP ×ĂÜ
ך ĂöĎúúöÿëĉêĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîöĊîćÙöóý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R 2
Maximum
likelihood 2.705 6.913 6.148 0.483 212.7 0.91532
Least square 2.531 7.042 6.250 0.477 233.8 0.89722
WAsP 1.926 6.306 5.594 0.452 212.9 0.67974
Actual data (44,640 time steps) 6.170 0.452 212.9 -
êćøćÜìĊęǰ10 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤÝćÖøąđïĊ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP
×ĂÜךĂöĎúúöÿëĉ êĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîđöþć÷îóý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R 2
Maximum
likelihood 2.279 5.677 5.029 0.468 132.0 0.94700
Least square 2.200 5.740 5.084 0.465 140.6 0.94131
WAsP 1.828 5.272 4.685 0.447 132.4 0.81942
Actual data (43,200 time steps) 5.036 0.447 132.4 -
êćøćÜìĊęǰ11 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤÝćÖøąđïĊ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP
×ĂÜךĂöĎúúöÿëĉ êĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîóùþõćÙöóý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R 2
Maximum
likelihood 2.163 3.915 3.467 0.464 45.3 0.92022
Least square 1.910 4.016 3.563 0.451 55.5 0.88977
WAsP 3.088 4.202 3.758 0.493 44.9 0.90515
Actual data (44,640 time steps) 3.484 0.493 44.9 -
êćøćÜìĊę ǰ12 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤ ÝćÖøąđïĊ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP
×ĂÜךĂöĎúúöÿëĉêĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120mךĂöĎúúöÿëĉêĉđéČĂîöĉëčîć÷îóý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R 2
Maximum
likelihood 2.349 4.424 3.921 0.471 61.1 0.97924
Least square 2.285 4.478 3.967 0.469 64.7 0.97311
WAsP 2.091 4.294 3.803 0.460 61.6 0.94372
Actual data (43,199 time steps) 3.930 0.460 61.6 -