{"id":76670,"date":"2018-03-09T23:22:03","date_gmt":"2018-03-09T23:22:03","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/optimizacion-del-comportamiento-dinamico-de-motores-lineales-sa%c2%adncronos-de-imanes-permanentes\/"},"modified":"2018-03-09T23:22:03","modified_gmt":"2018-03-09T23:22:03","slug":"optimizacion-del-comportamiento-dinamico-de-motores-lineales-sa%c2%adncronos-de-imanes-permanentes","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/tecnologia-de-la-instrumentacion\/optimizacion-del-comportamiento-dinamico-de-motores-lineales-sa%c2%adncronos-de-imanes-permanentes\/","title":{"rendered":"Optimizaci\u00f3n del comportamiento din\u00e1mico de motores lineales s\u00edncronos de imanes permanentes"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Gonzalo Martinez Diez <\/strong><\/h2>\n<p>Optimizaci\u00f3n del comportamiento din\u00e1mico de motores lineales s\u00edncronos de imanes permanentes resumen: los motores lineales s\u00edncronos representan una alternativa muy interesante a la hora de construir actuadores lineales. En un n\u00famero cada vez mayor de aplicaciones industriales, los sistemas tradicionales consistentes en un motor el\u00e9ctrico rotativo y una transmisi\u00f3n mec\u00e1nica que convierta el giro del motor en un desplazamiento lineal est\u00e1n siendo sustituidos por motores el\u00e9ctricos lineales, que mejoran considerablemente la precisi\u00f3n en el posicionamiento y las prestaciones din\u00e1micas de estos. De entre los diversos tipos de motores s\u00edncronos lineales, los de imanes permanentes son aquellos que se vienen empleando de manera m\u00e1s profusa dentro de la industria. Los motores s\u00edncronos lineales de imanes permanentes son aquellos cuyo campo magn\u00e9tico secundario est\u00e1 producido por imanes en lugar de otros sistemas como bobinas excitadas con corriente continua. Estos motores presentan una serie de fuerzas inherentes a ellos que en muchas ocasiones son no deseadas por su car\u00e1cter perturbador. Son fuerzas que generan toda una problem\u00e1tica relacionada sobre todo con un empeoramiento de la precisi\u00f3n del accionamiento, con una disminuci\u00f3n de las prestaciones din\u00e1micas y con un sometimiento de la estructura del accionamiento a grandes esfuerzos y desgastes, se trata por un lado de las fuerzas de reluctancia y por otro de las fuerzas normales al movimiento del motor, atractivas o repulsivas entre el primario y el secundario. Las fuerzas de reluctancia son paralelas a la direcci\u00f3n del movimiento y son causantes de imprecisiones en el movimiento de la m\u00e1quina. Las fuerzas normales son perpendiculares al movimiento de la m\u00e1quina. Se trata de fuerzas atractivas o repulsivas entre el primario y el secundario de esta. Son causa de mayores o menores esfuerzos en las estructuras del accionamiento, mayores fuerzas de rozamiento en los sistemas de guiado y rodamientos, mayores desgastes, m\u00e1s ruido ac\u00fastico y posibles vibraciones. El objetivo de esta tesis es obtener unas pautas de dise\u00f1o constructivo y control de motores lineales s\u00edncronos de imanes permanentes de manera que se elimine, o se reduzca lo m\u00e1ximo posible, toda esta problem\u00e1tica asociada a las fuerzas perturbadoras. Para ello, en primer lugar se ha realizado un estudio profundo de las fuerzas de reluctancia, y se han desarrollado posteriormente m\u00e9todos para reducirlas, tanto m\u00e9todos de tipo constructivo como m\u00e9todos de control. En segundo lugar, se han caracterizado exhaustivamente las fuerzas normales al movimiento y m\u00e1s tarde se ha desarrollado una estrategia de control que permite el control simult\u00e1neo, desacoplado e independiente del movimiento del motor y las fuerzas de atracci\u00f3n entre su primario y su secundario. Esto permite lograr lo que se denomina modo de operaci\u00f3n en reducci\u00f3n de masa, y llegar, incluso a la levitaci\u00f3n magn\u00e9tica del motor. Las tareas llevadas a cabo han sido validadas mediante simulaciones utilizando el m\u00e9todo de elementos finitos (mef) y mediante ensayos experimentales en prototipos de motor construidos en el laboratorio. El contenido de esta tesis se centra por tanto en obtener finalmente actuadores lineales s\u00edncronos m\u00e1s eficientes, capaces de alcanzar las cada vez m\u00e1s exigentes caracter\u00edsticas din\u00e1micas y de precisi\u00f3n  demandadas por las aplicaciones industriales.  linear synchronous motors are a very interesting option when thinking about linear actuators. The conventional linear systems consisting of a rotary motor and mechanical devices used to convert rotation to displacement are being replaced by linear electric motors in many industrial applications. Among linear synchronous motors, permanent magnet motors are the most commonly used in industry. In permanent magnet linear synchronous motors, the magnetic field of the secondary is produced by permanent magnets instead of other methods such as dc coils. This kind of motors presents some characteristic forces that are usually undesired because they produce disturbances in the motor motion. These forces reduce the dynamic features and the precision of the motor, and they are the cogging force (or detent force) and the normal forces between the primary and the secondary of the motor. Normal forces al so generate big stresses in the structure. Cogging force has the same direction as the motor motion and cause disturbances in the production of thrust. Normal forces are perpendicular to the motor motion and cause big stresses in the structure, increase friction losses and audible noise. They all so can generate undesired mechanical vibrations. First of all, cogging force was analysed, and various methods to reduce it were developed. Secondly, normal forces were studied, and a control strategy to control these forces was developed. All the tasks were validated by means of the finite element method and experimental tests.The target of this thesis is to obtain a method of designing, constructing and controlling permanent magnet linear synchronous motors that can achieve the more and more demanding dynamic features that industry requires for this kind of actuators<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Optimizaci\u00f3n del comportamiento din\u00e1mico de motores lineales s\u00edncronos de imanes permanentes<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Optimizaci\u00f3n del comportamiento din\u00e1mico de motores lineales s\u00edncronos de imanes permanentes <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Gonzalo Martinez Diez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 13\/10\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Andres Garcia Rico<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Fuentes perez <\/li>\n<li>Rafael Vives fos (vocal)<\/li>\n<li>Manuel angel Armada rodriguez (vocal)<\/li>\n<li>joseph Tornero i  montserrat (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Gonzalo Martinez Diez Optimizaci\u00f3n del comportamiento din\u00e1mico de motores lineales s\u00edncronos de imanes permanentes resumen: los motores [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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 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