{"id":5334,"date":"2018-10-14T13:56:19","date_gmt":"2018-10-14T12:56:19","guid":{"rendered":"https:\/\/l2ep.univ-lille.fr\/?p=5334"},"modified":"2018-11-12T09:22:07","modified_gmt":"2018-11-12T08:22:07","slug":"seminaire-pr-joao-pedra-f-trovao-university-of-sherbrooke-qc-canada-14-nov-2018","status":"publish","type":"post","link":"https:\/\/l2ep.univ-lille.fr\/en\/seminaire-pr-joao-pedra-f-trovao-university-of-sherbrooke-qc-canada-14-nov-2018\/","title":{"rendered":"S\u00e9minaire, Pr. Jo\u00e4o Pedro F. Trov\u00e3o (University of Sherbrooke, Qc, Canada), 14 Nov. 2018"},"content":{"rendered":"

Flux weakening in high performance electric vehicles considering\u00a0battery voltage variations<\/span><\/strong><\/p>\n

Prof. Jo\u00e3o Pedro F. Trov\u00e3o
\nUniversity of Sherbrooke, Qc, Canada
\ne-TESC Lab (electric \u2013 Transport, Energy Storage and Conversion Lab)
\nCanada Research Chair Holder<\/p>\n

Date :<\/strong>\u00a0<\/span>Wednesday 14 November 2018, 14h00 16h00
\nPlace :<\/strong>\u00a0<\/span>Amphi Poirier, Centrale Lille<\/p>\n

Abstract<\/span><\/strong><\/p>\n

With rapid electrification of transportation, it is becoming increasingly important to have a comprehensive understanding of\u00a0criteria used in powertrain selection (battery, drive and motor). This presentation presents a comparative study regarding\u00a0two equivalent battery pack designs for a high-performance electric vehicle (EV). On one hand, increasing the DC bus\u00a0voltage is thought to improve overall powertrain efficiency, but on other hand, the flux weakening scheme is generally\u00a0adopted for traction motors to achieve a wider speed range where the common proportional and integration compensator is\u00a0needed to regulate the flux-producing current. However, the regulator performance deteriorates due to dc-link voltage\u00a0disturbances and motor parameter nonlinearities in the different speed regions. To evaluate this issue, a powertrain model\u00a0based on energetic Macroscopic Representation (EMR) coupled to a traditional flux weakening algorithm is studied for a\u00a0high-performance EV using a low-voltage PMSM motor and two equivalent battery pack designs. The augmented\u00a0prediction state relationship between stator voltage and flux-producing current is established for motor current control. The\u00a0overall closed-loop control, deduced by direct inversion of the vehicle EMR, is presented where the system eigenvalues are\u00a0adjusted for various speed regions, and accordingly, the battery packs performance can be evaluated. Moreover, a weight\u00a0coefficient can be adjusted corresponding to speed variation for guaranteed motor control performance. The simulation\u00a0results are provided to verify the model based on EMR and clearly indicate that at constant and higher bus voltage will\u00a0improve powertrain efficiency in some, but not all, operating conditions.<\/p>\n

About the Speaker<\/span><\/strong><\/p>\n

Jo\u00e3o Pedro F. Trov\u00e3o (S\u201908 – M\u201913 – SM\u201917) received the M.Sc. degree and the Ph.D. degree in Electrical\u00a0Engineering from the University of Coimbra, Coimbra, Portugal, in 2004 and 2013, respectively. From\u00a02000 to 2014, he was a Teaching Assistant and an Assistant Professor with the Polytechnic Institute of\u00a0Coimbra\u2013Coimbra Institute of Engineering (IPC\u2013ISEC), Portugal. Since 2014, he has been a Professor with\u00a0the Department of Electrical Engineering and Computer Engineering, University of Sherbrooke,\u00a0Sherbrooke, QC, Canada, where he holds the Canadian Research Chair position in Efficient Electric\u00a0Vehicles with Hybridized Energy Storage Systems. His research interests cover the areas of electric\u00a0vehicles, hybridized energy storage systems, energy management and rotating electrical machines. J. P. F.\u00a0Trov\u00e3o was the General Chair of the 2018 IEEE Vehicle Power and Propulsion Conference, Chicago, US. He was a Guest\u00a0Editor for the Special Issue of IET ELECTRICAL<\/small> SYSTEMS<\/small> IN<\/small> TRANSPORTATION ON<\/small> ENERGY<\/small> STORAGE<\/small> AND<\/small> ELECTRIC<\/small> POWER<\/small>\u00a0SUB<\/small> -SYSTEMS<\/small> FOR<\/small> ADVANCED<\/small> VEHICLES<\/small> . He was a Guest Editor for the Special Issue of IEEE TRANSACTIONS ON<\/small>\u00a0VEHICULAR<\/small> TECHNOLOGY ON<\/small> ELECTRIC POWERTRAINS FOR<\/small> FUTURE VEHICLES<\/small>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Flux weakening in high performance electric vehicles considering\u00a0battery voltage variations Prof. Jo\u00e3o Pedro F. Trov\u00e3o University of Sherbrooke, Qc, Canada e-TESC Lab (electric \u2013 Transport, Energy Storage and Conversion Lab) Canada Research Chair Holder Date :\u00a0Wednesday 14 November 2018, 14h00 16h00 Place :\u00a0Amphi Poirier, Centrale Lille Abstract With rapid electrification of transportation, it is becoming […]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,21,37],"tags":[],"_links":{"self":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/5334"}],"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=5334"}],"version-history":[{"count":2,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/5334\/revisions"}],"predecessor-version":[{"id":5351,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/posts\/5334\/revisions\/5351"}],"wp:attachment":[{"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/media?parent=5334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/categories?post=5334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/l2ep.univ-lille.fr\/en\/wp-json\/wp\/v2\/tags?post=5334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}