Superiority of downwind turbines in complex terrains

Shigeo Yoshida

Superiority of downwind turbines in complex terrains

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Up flow wind is a distinctive feature in complex terrains. By reason of the differences of tilt angles, downwind turbines have smaller misalignments toward up flow wind than upwind turbines. It makes the former generates more power than the latter in complex terrains. The advantage of downwind turbines was demonstrated in field tests using a same turbine in both rotor positions. Performance improvements were measured as much as +5 to +20% in +1 to +11deg of inclinations. Wind simulation of a wind farm in a typical complex terrain was also carried out. It shows annual energy averaged inclination is +7.5deg, where time average inclination is +6.0deg. And 7.6% more AEP was calculated by downwind turbines as compared with upwind turbines.

Original language	English
Title of host publication	European Wind Energy Conference and Exhibition 2006, EWEC 2006
Pages	1273-1276
Number of pages	4
Publication status	Published - 2006
Externally published	Yes
Event	European Wind Energy Conference and Exhibition 2006, EWEC 2006 - Athens, Greece Duration: Feb 27 2006 → Mar 2 2006

Publication series

Name	European Wind Energy Conference and Exhibition 2006, EWEC 2006
Volume	2

Other

Other	European Wind Energy Conference and Exhibition 2006, EWEC 2006
Country/Territory	Greece
City	Athens
Period	2/27/06 → 3/2/06

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "Superiority of downwind turbines in complex terrains",

abstract = "Up flow wind is a distinctive feature in complex terrains. By reason of the differences of tilt angles, downwind turbines have smaller misalignments toward up flow wind than upwind turbines. It makes the former generates more power than the latter in complex terrains. The advantage of downwind turbines was demonstrated in field tests using a same turbine in both rotor positions. Performance improvements were measured as much as +5 to +20% in +1 to +11deg of inclinations. Wind simulation of a wind farm in a typical complex terrain was also carried out. It shows annual energy averaged inclination is +7.5deg, where time average inclination is +6.0deg. And 7.6% more AEP was calculated by downwind turbines as compared with upwind turbines.",

author = "Shigeo Yoshida",

year = "2006",

language = "English",

isbn = "9781622764679",

series = "European Wind Energy Conference and Exhibition 2006, EWEC 2006",

pages = "1273--1276",

booktitle = "European Wind Energy Conference and Exhibition 2006, EWEC 2006",

note = "European Wind Energy Conference and Exhibition 2006, EWEC 2006 ; Conference date: 27-02-2006 Through 02-03-2006",

}

TY - GEN

T1 - Superiority of downwind turbines in complex terrains

AU - Yoshida, Shigeo

PY - 2006

Y1 - 2006

N2 - Up flow wind is a distinctive feature in complex terrains. By reason of the differences of tilt angles, downwind turbines have smaller misalignments toward up flow wind than upwind turbines. It makes the former generates more power than the latter in complex terrains. The advantage of downwind turbines was demonstrated in field tests using a same turbine in both rotor positions. Performance improvements were measured as much as +5 to +20% in +1 to +11deg of inclinations. Wind simulation of a wind farm in a typical complex terrain was also carried out. It shows annual energy averaged inclination is +7.5deg, where time average inclination is +6.0deg. And 7.6% more AEP was calculated by downwind turbines as compared with upwind turbines.

AB - Up flow wind is a distinctive feature in complex terrains. By reason of the differences of tilt angles, downwind turbines have smaller misalignments toward up flow wind than upwind turbines. It makes the former generates more power than the latter in complex terrains. The advantage of downwind turbines was demonstrated in field tests using a same turbine in both rotor positions. Performance improvements were measured as much as +5 to +20% in +1 to +11deg of inclinations. Wind simulation of a wind farm in a typical complex terrain was also carried out. It shows annual energy averaged inclination is +7.5deg, where time average inclination is +6.0deg. And 7.6% more AEP was calculated by downwind turbines as compared with upwind turbines.

UR - http://www.scopus.com/inward/record.url?scp=84876579726&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876579726&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84876579726

SN - 9781622764679

T3 - European Wind Energy Conference and Exhibition 2006, EWEC 2006

SP - 1273

EP - 1276

BT - European Wind Energy Conference and Exhibition 2006, EWEC 2006

T2 - European Wind Energy Conference and Exhibition 2006, EWEC 2006

Y2 - 27 February 2006 through 2 March 2006

ER -

Superiority of downwind turbines in complex terrains

Abstract

Publication series

Other

All Science Journal Classification (ASJC) codes

UN SDGs

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