{"id":15373,"date":"2022-04-29T15:01:05","date_gmt":"2022-04-29T13:01:05","guid":{"rendered":"https:\/\/electrical-engineering-portal.com\/academy\/?post_type=product&#038;p=15373"},"modified":"2022-04-29T15:01:06","modified_gmt":"2022-04-29T13:01:06","slug":"course-design-wind-energy-systems-specification-construction-examples","status":"publish","type":"product","link":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples\/","title":{"rendered":"Design Course For Wind Energy Systems: Specification, Construction and Examples"},"content":{"rendered":"<p>This course is designed for anyone who would like to learn how to design wind energy systems from A to Z, electrical engineers, solar designers, and all who are interested in working in the wind energy field. The course has\u00a0<strong>9 sections, 64 lectures in 11h 14m total length<\/strong>.<\/p>\n<p>The course will teach you the fundamentals of wind energy systems with step by step examples without a need for any previous knowledge.<\/p>\n<p><strong>What you will learn in this course:<\/strong><\/p>\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<ul>\n<li>Types of wind turbines<\/li>\n<li>Rotor solidity and selection of number of rotor blades<\/li>\n<li>Power extracted by the turbine from the wind<\/li>\n<li>Betz limit and maximum rotor efficiency<\/li>\n<li>Factors affecting wind speed and density<\/li>\n<li>Applied force on the wind turbine, torque coefficient, and the importance of the TSR<\/li>\n<li>Wind turbine generator characteristics<\/li>\n<li>Effect of rotor diameter and generator size on power<\/li>\n<li>Wind turbines spacing<\/li>\n<li>Wind farm feasibility study<\/li>\n<li>Weibull and Rayleigh probability density functions<\/li>\n<li>Determination of Weibull parameters<\/li>\n<li>Determination of Weibull parameters using the graphical method<\/li>\n<li>Aerodynamics of wind turbines<\/li>\n<li>Pitch-controlled wind turbines<\/li>\n<li>Passive stall controlled wind turbines<\/li>\n<li>Active stall controlled wind turbines<\/li>\n<li>Maximum power point tracking in wind turbines<\/li>\n<li>Tip speed ratio (TSR) control<\/li>\n<li>Optimal torque control (OT) MPPT algorithm<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column\">\n<ul>\n<li>Power signal feedback (PSF) control<\/li>\n<li>Perturbation and observation (P&amp;O) or hill-climb searching (HCS)<\/li>\n<li>Electricity generation using wind turbines<\/li>\n<li>Permanent magnet synchronous generator (PMSG)<\/li>\n<li>Wound rotor synchronous generator (WRSG)<\/li>\n<li>Doubly-fed induction generator (DFIG)<\/li>\n<li>Brushless permanent magnet DC generator (PMDC)<\/li>\n<li>Squirrel-cage induction generator<\/li>\n<li>Wound rotor induction generator<\/li>\n<li>Tubular steel wind turbine tower<\/li>\n<li>Lattice wind turbine tower<\/li>\n<li>Concrete wind turbine tower<\/li>\n<li>Hybrid wind turbine tower<\/li>\n<li>Brakes in the wind turbine<\/li>\n<li>Rotor brakes in the wind turbine<\/li>\n<li>Pitch drive or aerodynamic brakes in the wind turbine<\/li>\n<li>Simulation of a wind turbine system using the ETAP program<\/li>\n<li>MATLAB simulation of the wind turbine<\/li>\n<li>Cp plotting and lookup table in MATLAB<\/li>\n<li>MPPT in MATLAB Simulink<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><iframe src=\"https:\/\/player.vimeo.com\/video\/703198448?dnt=1&amp;app_id=122963\" width=\"640\" height=\"360\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write\"><\/iframe><\/p>\n<div class=\"wp-block-columns\">\n<div class=\"wp-block-column\">\n<h2>Course Content:<\/h2>\n<ol>\n<li>Basics of Wind Turbine<\/li>\n<li>Wind Feasibility Study and Probability Distribution Functions<\/li>\n<li>Power Control of Wind Turbines<\/li>\n<li>Maximum Power Point Tracking Wind Turbines (MPPT)<\/li>\n<li>Types of Wind Electrical Generators<\/li>\n<li>Different Types of Towers<\/li>\n<li>Braking System in Wind Turbine<\/li>\n<li>ETAP Simulation for a Wind Energy System<\/li>\n<li>MATLAB Simulation for a Wind Energy System<\/li>\n<\/ol>\n<\/div>\n<div class=\"wp-block-column\">\n<h2>Who Is This Course For:<\/h2>\n<ul>\n<li>Wind power enthusiasts<\/li>\n<li>Electrical power engineers<\/li>\n<li>Electrical students<\/li>\n<li>Anyone who wants to get knowledge about wind power systems<\/li>\n<li>Complete beginners with zero solar experience or knowledge<\/li>\n<\/ul>\n<h2>Requirements:<\/h2>\n<ul>\n<li>No prior Knowledge!<\/li>\n<li>Passion to Learn!<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2>More info about course<\/h2>\n<blockquote class=\"wp-embedded-content\" data-secret=\"LXyfznS4fE\"><p><a href=\"https:\/\/electrical-engineering-portal.com\/academy\/courses\/design-wind-energy-systems\">Design Course For Wind Energy Systems: Specification, Construction and Examples<\/a><\/p><\/blockquote>\n<p><iframe class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Design Course For Wind Energy Systems: Specification, Construction and Examples&#8221; &#8212; EEP Academy Courses\" src=\"https:\/\/electrical-engineering-portal.com\/academy\/courses\/design-wind-energy-systems\/embed#?secret=rce2xkbSVk#?secret=LXyfznS4fE\" data-secret=\"LXyfznS4fE\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn the fundamentals of wind energy systems with step by step examples without any previous knowledge. Learn how to design and specify wind turbine and its electrical equipment. The course consists of 64 lectures in 11h 14m total length and plenty of downloadable materials.<\/p>\n<div class=\"single_add_to_cart_button button woo_courselink\"><a title=\"Learn more about the course\" href=\"https:\/\/electrical-engineering-portal.com\/academy\/courses\/design-wind-energy-systems\">See course details<\/a><\/div>\n","protected":false},"author":9,"featured_media":15376,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[118,504,145,1302],"product_tag":[1316,1315,1308,1309,1307,1305,1314,1317,1310,1303,1313,1306,1311,1312,1304],"class_list":["post-15373","product","type-product","status-publish","has-post-thumbnail","product_cat-electrical-design","product_cat-electrical-machines","product_cat-power-system","product_cat-wind-energy-systems","product_tag-brushless-permanent-magnet-dc-generator","product_tag-doubly-fed-induction-generator","product_tag-etap-simulation","product_tag-matlab-simulation","product_tag-maximum-power-point-tracking","product_tag-rotor-blades","product_tag-rotor-brakes","product_tag-tip-speed-ratio","product_tag-weibull-parameters","product_tag-wind-energy-systems","product_tag-wind-farm-feasibility-study","product_tag-wind-feasibility-study","product_tag-wind-speed","product_tag-wind-turbine-generator","product_tag-wind-turbines","first","instock","virtual","sold-individually","purchasable","product-type-course"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses<\/title>\n<meta name=\"description\" content=\"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses\" \/>\n<meta property=\"og:description\" content=\"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples\" \/>\n<meta property=\"og:site_name\" content=\"EEP Academy Courses\" \/>\n<meta property=\"article:publisher\" content=\"http:\/\/www.facebook.com\/eeportal\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-29T13:01:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2022\/04\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"712\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@eeportal_com\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples\",\"url\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples\",\"name\":\"Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg\",\"datePublished\":\"2022-04-29T13:01:05+00:00\",\"dateModified\":\"2022-04-29T13:01:06+00:00\",\"description\":\"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples#primaryimage\",\"url\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg\",\"contentUrl\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg\",\"width\":1000,\"height\":712,\"caption\":\"Design Course For Wind Energy Systems: Specification, Construction and Examples\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/product\\\/course-design-wind-energy-systems-specification-construction-examples#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Electrical Engineering Shop\",\"item\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Design Course For Wind Energy Systems: Specification, Construction and Examples\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#website\",\"url\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/\",\"name\":\"EEP Academy Courses\",\"description\":\"Advanced Learning Platform For Electrical Engineers\",\"publisher\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#organization\"},\"alternateName\":\"Cutting-edge hand-crafted electrical engineering courses\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#organization\",\"name\":\"EEP Academy\",\"alternateName\":\"Cutting-edge hand-crafted electrical engineering courses\",\"url\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/eep-academy-logo.png\",\"contentUrl\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/wp-content\\\/uploads\\\/2021\\\/07\\\/eep-academy-logo.png\",\"width\":533,\"height\":67,\"caption\":\"EEP Academy\"},\"image\":{\"@id\":\"https:\\\/\\\/electrical-engineering-portal.com\\\/academy\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"http:\\\/\\\/www.facebook.com\\\/eeportal\",\"https:\\\/\\\/x.com\\\/eeportal_com\",\"http:\\\/\\\/www.linkedin.com\\\/groups\\\/EEP-Electrical-Engineering-Portal-4141766\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses","description":"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples","og_locale":"en_US","og_type":"article","og_title":"Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses","og_description":"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.","og_url":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples","og_site_name":"EEP Academy Courses","article_publisher":"http:\/\/www.facebook.com\/eeportal","article_modified_time":"2022-04-29T13:01:06+00:00","og_image":[{"width":1000,"height":712,"url":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2022\/04\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@eeportal_com","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples","url":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples","name":"Design Course For Wind Energy Systems: Specification, Construction and Examples - EEP Academy Courses","isPartOf":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/#website"},"primaryImageOfPage":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples#primaryimage"},"image":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples#primaryimage"},"thumbnailUrl":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2022\/04\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg","datePublished":"2022-04-29T13:01:05+00:00","dateModified":"2022-04-29T13:01:06+00:00","description":"Learn how to design and specify wind turbine and its electrical equipment. Learn the fundamentals of wind energy systems with examples.","breadcrumb":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples#primaryimage","url":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2022\/04\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg","contentUrl":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2022\/04\/design-course-wind-energy-systems-specification-construction-examples-woo.jpg","width":1000,"height":712,"caption":"Design Course For Wind Energy Systems: Specification, Construction and Examples"},{"@type":"BreadcrumbList","@id":"https:\/\/electrical-engineering-portal.com\/academy\/product\/course-design-wind-energy-systems-specification-construction-examples#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/electrical-engineering-portal.com\/academy\/"},{"@type":"ListItem","position":2,"name":"Electrical Engineering Shop","item":"https:\/\/electrical-engineering-portal.com\/academy\/shop\/"},{"@type":"ListItem","position":3,"name":"Design Course For Wind Energy Systems: Specification, Construction and Examples"}]},{"@type":"WebSite","@id":"https:\/\/electrical-engineering-portal.com\/academy\/#website","url":"https:\/\/electrical-engineering-portal.com\/academy\/","name":"EEP Academy Courses","description":"Advanced Learning Platform For Electrical Engineers","publisher":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/#organization"},"alternateName":"Cutting-edge hand-crafted electrical engineering courses","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/electrical-engineering-portal.com\/academy\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/electrical-engineering-portal.com\/academy\/#organization","name":"EEP Academy","alternateName":"Cutting-edge hand-crafted electrical engineering courses","url":"https:\/\/electrical-engineering-portal.com\/academy\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/electrical-engineering-portal.com\/academy\/#\/schema\/logo\/image\/","url":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2021\/07\/eep-academy-logo.png","contentUrl":"https:\/\/electrical-engineering-portal.com\/academy\/wp-content\/uploads\/2021\/07\/eep-academy-logo.png","width":533,"height":67,"caption":"EEP Academy"},"image":{"@id":"https:\/\/electrical-engineering-portal.com\/academy\/#\/schema\/logo\/image\/"},"sameAs":["http:\/\/www.facebook.com\/eeportal","https:\/\/x.com\/eeportal_com","http:\/\/www.linkedin.com\/groups\/EEP-Electrical-Engineering-Portal-4141766"]}]}},"_links":{"self":[{"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/product\/15373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/types\/product"}],"author":[{"embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/comments?post=15373"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/media\/15376"}],"wp:attachment":[{"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/media?parent=15373"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/product_brand?post=15373"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/product_cat?post=15373"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/electrical-engineering-portal.com\/academy\/wp-json\/wp\/v2\/product_tag?post=15373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}