processding59.pdf - page 290

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êćøćÜìĊęǰ5 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤÝćÖøąđïĊ ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP ×ĂÜ
ךĂöĎúúöÿëĉ êĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîóùýÝĉÖć÷îóý 2557
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R2
Maximum
likelihood 1.742 4.040 3.599 0.441 63.5 0.91771
Least square 1.607 4.113 3.686 0.432 75.7 0.90255
WAsP 2.000 4.251 3.768 0.456 62.6 0.92880
Actual data (43,200 time steps) 3.610 0.456 62.6 -
êćøćÜìĊęǰ6 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤÝćÖøąđïĊ ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP ×ĂÜ
ךĂöĎúúöÿëĉ êĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ120mךĂöĎúúöÿëĉ êĉđéČĂîíĆ îüćÙöóý 2557
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R2
Maximum
likelihood 1.995 7.228 6.406 0.456 308.2 0.94543
Least square 1.709 7.441 6.637 0.439 407.7 0.91895
WAsP 2.287 7.451 6.600 0.469 297.7 0.93852
Actual data (44,640 time steps) 6.439 0.469 297.7 -
êćøćÜìĊęǰ7 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤ ÝćÖøąđïĊ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP ×ĂÜ
ךĂöĎúúöÿëĉ êĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîöÖøćÙöóý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R2
Maximum
likelihood 3.386 7.359 6.610 0.499 233.6 0.95239
Least square 2.905 7.552 6.735 0.488 267.6 0.92062
WAsP 2.703 7.135 6.346 0.483 234.0 0.87373
Actual data (44,640 time steps) 6.635 0.483 234.0 -
êćøćÜìĊęǰ8 ÖćøđðøĊ÷ïđìĊ÷ïĕüïĎúúŤóćøćöĉđêĂøŤÝćÖøąđïĊ ÷ïüĉíĊ Maximum Likelihood, Least Square, Ēúą WAsP ×ĂÜ
ךĂöĎúúöÿëĉêĉøć÷ðŘ ÿëćîĊüĉÝĆ÷óúĆÜÜćîúöđìóćìĊęøąéĆïÙüćöÿĎÜ 120 m ךĂöĎúúöÿëĉêĉđéČĂîÖčöõćóĆîíŤ óý 2558
Algorithm Weibull k Weibull c
(m/s) Mean (m/s) Proportion
Above Mean
Power Density
(W/m2) R2
Maximum
likelihood 3.361 8.033 7.212 0.498 304.6 0.91974
Least square 3.698 7.970 7.193 0.505 289.8 0.89969
WAsP 2.015 7.219 6.397 0.457 303.8 0.63782
Actual data (40,320 time steps) 7.208 0.457 303.8 -