{"id":201,"date":"2014-05-11T10:50:32","date_gmt":"2014-05-11T08:50:32","guid":{"rendered":"http:\/\/www.seewind.org\/wp\/?page_id=201"},"modified":"2025-08-05T13:52:56","modified_gmt":"2025-08-05T11:52:56","slug":"wp-12-power-curve-measurement","status":"publish","type":"page","link":"https:\/\/www.seewind.org\/?page_id=201","title":{"rendered":"WP 12 &#8211; Power curve measurement"},"content":{"rendered":"<h3>Objectives<\/h3>\n<p><em>Power Performance Measurement<\/em><\/p>\n<ul>\n<li>To compare site calibration factors obtained from cup anemometer measurements and 3D sonic anemometer measurements<\/li>\n<li>To compare wind speed profiles measured at the tower and generated by the numerical model.<\/li>\n<li>To measure the power curve of two turbines of the same type at different complex terrain situations for site specific effects. To test nacelle anemometer based results against IEC 61400-12-1 measurement results.<\/li>\n<\/ul>\n<h3><\/h3>\n<h3>Description of work<\/h3>\n<p><em>Power Performance Measurement<\/em><\/p>\n<ul>\n<li>Two towers will be placed at the site of interest in order to perform a site calibration measurement at hub height, according to IEC 61400-12-1 using Measnet calibrated cup and sonic anemometers.<\/li>\n<li>After the first phase with a minimum durations of 8 weeks the mast at the turbine position will be moved to a different position in the farm. The sonics will be calibrated with regard to the expected terrain slope induced inflow angles. In this phase a second data set will be compiled.<\/li>\n<li>Power curve measurements on turbines following IEC 61400-12-1. The data of the turbine will be assessed using nacelle anemometry. Special emphasis shall be put on the high wind speed regime above 16 m\/s and the cut-out hysteresis.<\/li>\n<\/ul>\n<h3><\/h3>\n<h3>WP Responsibility<\/h3>\n<p><span style=\"color: #000000;\"><a title=\"Deutsches Wind Energie Institut Gmbh (DEWI)\" href=\"http:\/\/www.seewind.org\/wp\/?page_id=58\">DEWI<\/a> is the leader of Work Package &#8218;Power curve measurement&#8216;.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Objectives Power Performance Measurement To compare site calibration factors obtained from cup anemometer measurements and 3D sonic anemometer measurements To [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-201","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/pages\/201","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.seewind.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=201"}],"version-history":[{"count":1,"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/pages\/201\/revisions"}],"predecessor-version":[{"id":202,"href":"https:\/\/www.seewind.org\/index.php?rest_route=\/wp\/v2\/pages\/201\/revisions\/202"}],"wp:attachment":[{"href":"https:\/\/www.seewind.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}