{"id":595,"date":"2021-11-11T16:09:00","date_gmt":"2021-11-11T19:09:00","guid":{"rendered":"https:\/\/hospedagemphp2.ufrgs.br\/ppgee\/?p=595"},"modified":"2023-05-31T16:15:26","modified_gmt":"2023-05-31T19:15:26","slug":"defesa-de-dissertacao-de-mestrado-kaua-minho-antunez","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ppgee\/defesa-de-dissertacao-de-mestrado-kaua-minho-antunez\/","title":{"rendered":"Defesa de Disserta\u00e7\u00e3o de Mestrado &#8211; Kau\u00e3 Minho Antunez"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Defesa P\u00fablica da Disserta\u00e7\u00e3o de Mestrado do Engenheiro Eletricista Kau\u00e3 Minho Antunez<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Data: 11\/11\/2021 &#8211; quinta-feira<br>Hor\u00e1rio: 14h00min<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A defesa ser\u00e1 realizada atrav\u00e9s de videoconfer\u00eanica, pelo link:&nbsp;<a href=\"https:\/\/mconf.ufrgs.br\/webconf\/00009898\">https:\/\/mconf.ufrgs.br\/webconf\/00009898<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Link alternativo para o caso de falha do primeiro:<a href=\"https:\/\/meet.google.com\/zad-btmn-rzg\">https:\/\/meet.google.com\/zad-btmn-rzg<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Banca Examinadora:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Profa. Dra. Luc\u00edola Campestrini \u2013 PPGEE &#8211; UFRGS<br>Prof. Dr. Gustavo Henrique da Costa Oliveira \u2013 DELT (Dept\u00ba Eng. El\u00e9trica) &#8211; UFPR<br>Prof. Dr. Diego Eckhard \u2013 PPGEE &#8211; UFRGS<br>Presidente da banca\/Orientador: Prof. Dr. Alexandre Sanfelici Bazanella &#8211; PPGEE &#8211; UFRGS<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00edtulo da disserta\u00e7\u00e3o: &#8220;Design of Nonlinear controllers Through the virtual Reference Method and&nbsp; l1 Regularization&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Resumo: &#8220;This work proposes a new extension for the nonlinear formulation of the data-driven control method known as the Nonlinear Virtual Reference Feedback Tuning. When the process to be controlled contains a signifcant quantity of noise, the standard Nonlinear VRFT approach &#8211; that uses the Least Squares method &#8211; yield estimates with poor statistical properties. Thes properties may lead the control system to undesirable closed loop performances and even instability. With the intention to improve these statistical properties and controller sparsity and hence, the sistem&#8217;s closed loop performance, this work proposes the use of l1 retulatization on the nonlinear formulation of the VRFT method. Regularization is a component that has been extensively employed and researched in the Machine Learning and system Identification communities lately. Furthermore, this technique is appropriate to reduce the variance in the estimates. A detailed analysis of the noise effect on the estimate is made for the Nonlinear VRFT method. Finally, three different regularization methods, the third one proposed in this work, are compared to the standard Nonlinear VRFT.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Palavras-chave: Data-Driven Control, VRFT, Regularization&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Defesa P\u00fablica da Disserta\u00e7\u00e3o de Mestrado do Engenheiro Eletricista Kau\u00e3 Minho Antunez Data: 11\/11\/2021 &#8211; quinta-feiraHor\u00e1rio: 14h00min A defesa ser\u00e1 realizada atrav\u00e9s de videoconfer\u00eanica, pelo link:&nbsp;https:\/\/mconf.ufrgs.br\/webconf\/00009898 Link alternativo para o caso de falha do primeiro:https:\/\/meet.google.com\/zad-btmn-rzg Banca Examinadora: Profa. Dra. Luc\u00edola Campestrini \u2013 PPGEE &#8211; UFRGSProf. Dr. Gustavo Henrique da Costa Oliveira \u2013 DELT (Dept\u00ba Eng.&hellip;&nbsp;<a href=\"https:\/\/www.ufrgs.br\/ppgee\/defesa-de-dissertacao-de-mestrado-kaua-minho-antunez\/\" rel=\"bookmark\">Continue a ler &raquo;<span class=\"screen-reader-text\">Defesa de Disserta\u00e7\u00e3o de Mestrado &#8211; Kau\u00e3 Minho Antunez<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-595","post","type-post","status-publish","format-standard","hentry","category-eventos"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/posts\/595","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/comments?post=595"}],"version-history":[{"count":0,"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/posts\/595\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/media?parent=595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/categories?post=595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ppgee\/wp-json\/wp\/v2\/tags?post=595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}