{"id":4982,"date":"2018-03-19T14:31:16","date_gmt":"2018-03-19T13:31:16","guid":{"rendered":"https:\/\/l2ep.univ-lille.fr\/?p=4982"},"modified":"2018-05-24T10:14:41","modified_gmt":"2018-05-24T09:14:41","slug":"seminaire-equipe-omn-31-mai-2018","status":"publish","type":"post","link":"https:\/\/l2ep.univ-lille.fr\/en\/seminaire-equipe-omn-31-mai-2018\/","title":{"rendered":"S\u00e9minaire Equipe OMN, 1 Juin 2018"},"content":{"rendered":"<h5>Le Jeudi 31 mai 2018,<strong>\u00a0Kevin DARQUES<\/strong>, doctorant de l&rsquo;\u00e9quipe OMN,\u00a0effectuera un s\u00e9minaire sur le th\u00e8me :<\/h5>\n<p><center><strong><span style=\"font-size: medium; color: #f07e1c;\">Contribution to the shaft voltage modeling of high-power generators<\/span><\/strong><\/center><span>suivi d&rsquo;une discussion scientifique.<\/span><\/p>\n<p>Date :\u00a0<strong>Vendredi 1 juin 2018 \u00e0 13h30<\/strong><br \/>\nLieu : <strong>Salle 2S53 \u00e0 Lilliad<\/strong><\/p>\n<p style=\"text-align: justify;\"><span>In large turbo-generators, shaft voltage exists due to the inherent minor imperfections in the construction of the machine or material imperfections but also to defects such as eccentricities or rotor shorts circuits. Therefore, its analysis can constitute a variable to be used to diagnosis some machine defects. A first step consists in determining in an accurate way the effect of these defects on the shaft voltage. In this aim, a didactic analysis is carried out with the help of numerical model based on 2D FEM.<\/span><br \/>\n<span>Two high-power non-salient pole synchronous generators of 2 and 4 poles are studied. The study is carried out gradually, first on a simplified structure and then introducing the effect of the stator slots, the parallel coupling, the load or eddy currents in the damper bars have been investigated. The obtained results are analyzed in order to clearly determine the impact of each variable.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le Jeudi 31 mai 2018,\u00a0Kevin DARQUES, doctorant de l&rsquo;\u00e9quipe OMN,\u00a0effectuera un s\u00e9minaire sur le th\u00e8me : Contribution to the shaft voltage modeling of high-power generatorssuivi d&rsquo;une discussion scientifique. Date :\u00a0Vendredi 1 juin 2018 \u00e0 13h30 Lieu : Salle 2S53 \u00e0 Lilliad In large turbo-generators, shaft voltage exists due to the inherent minor imperfections in the [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[34,37],"tags":[],"_links":{"self":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4982"}],"collection":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/comments?post=4982"}],"version-history":[{"count":2,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4982\/revisions"}],"predecessor-version":[{"id":5024,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/4982\/revisions\/5024"}],"wp:attachment":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/media?parent=4982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/categories?post=4982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/tags?post=4982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}