Events: Signaler och system, Electrical Engineering events at Chalmers University of TechnologyFri, 05 Jul 2019 07:58:09 +0200,-Rahul-Kanchan.aspx,-Rahul-Kanchan.aspxInauguration lecture, Rahul Kanchan<p>EB, lecture hall, floor 4, Hörsalsvägen 11, Campus Johanneberg</p><p>​Welcome to a lecture for the position Adjunct Professor at the Department of Electrical Engineering, held by Rahul Kanchan.</p>​<div><div><strong>Title:</strong> <br />Challenges and advanced control aspects of modern high-performance electrical machines</div> <div><br /></div> <div><strong>Abstract: <br /></strong>The global megatrends like energy efficiency, renewable integration, e-mobility and economic developments worldwide are driving next level of research into power electronics converter systems. Similarly, the biggest growth of power electronic converters is seen in electric vehicles. Electric machines are evolving continuously to meet the newer requirements on efficiency, dynamic performance criteria’s. However, control of electrical machines is becoming much more challenging as compared to earlier machines. This is mainly due to highly nonlinear magnetic behavior resulting into complex analytical models of these machines aggregated by difficulty in identifying parameters required to represent the machine model in controller design.  The power electronic converters supplying electrical machines are also evolving with use of newer power semiconductor devices which are capable of switching at much higher frequencies as compared to earlier power converters. This also leads to various EMI/EMC issues demanding careful design of machine insulation which otherwise can cause excessive leakage currents damaging machine insulation or bearings.</div> <div>The talk will present overview on these aspects of advanced control design aspects for controlling electrical machines and then show certain research examples for improving performance of electrical machines.</div> <div><br /></div> <div><strong>Biography: </strong></div> <div>Dr. Rahul Kanchan obtained master’s degree (MTech) from Indian institute of Technology, Bombay, India in Yr. 2000 and doctoral degree (PhD) from Indian Institute of Science, Bangalore, India in Yr. 2006. In between, he worked with Tata Steel, India, analyzing the power system network and devising strategies for successful Islanding and internal load balancing of captive generation and important loads. He received research fellowship of Humboldt Foundation, Germany, to work as post-doctoral research assistant at Wuppertal University, Germany, where he was researching on model predictive control and its applications to control of multilevel converter fed electric drives</div> <div>Dr. Rahul Kanchan is presently working as Principal Scientist at ABB Corporate Research at Västerås. His research activities involve research and development of innovative solutions towards power electronics systems with focus on energy efficiency, reliability and performance enhancement of power drive systems. The primary areas of research are electric drives, power converters and PWM techniques, predictive control strategies for AC drives, and optimal control for Energy efficiency. </div></div> <div><br /></div>,-Shafigh-Nategh.aspx,-Shafigh-Nategh.aspxInauguration lecture, Shafigh Nategh<p>EB, lecture hall, floor 4, Hörsalsvägen 11, Campus Johanneberg</p><p>​Welcome to a lecture for the position Adjunct Associate Professor at the Department of Electrical Engineering, held by Shafigh Nategh.</p><strong>​</strong><span style="background-color:initial"><strong><br /></strong></span><div><span style="background-color:initial"><strong>Title:<br /></strong></span><img src="/SiteCollectionImages/Institutioner/E2/Kalendarium/Shafig-Nategh_250px.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px;height:240px;font-weight:700;width:200px" /><span style="background-color:initial">​​Review and Trends in Traction Motor Design for Railway, E-mobility and Marine Applications</span></div> <div><b>​<br /></b> <div><strong style="background-color:initial">Abstract:</strong><br /></div> <div>There is a growing need for electric propulsion systems with high performance, low cost and longer operating lifetime, driven primarily by electrification in the automotive, rail, marine, and aerospace transportation sectors. Traction motors as the heart of the propulsion chain driving wheels or propeller play an important role in the performance of the traction chain. Additionally, any design change in the traction motor should be well aligned with other components of the propulsion system, e.g. converters and gearboxes. In this lecture, the current technologies and trends will be reviewed. The focus will be on electromagnetic, thermal and insulation design aspects of traction motors.</div> <div><br /></div> <div><strong>​Biography:</strong></div> </div> <div><b>​</b><span style="background-color:initial">Shafigh Nategh was born in 1984. He received the Ph.D. degree in thermal management of electrical machines from the KTH Royal Institute of Technology, Stockholm, Sweden, in 2013. He was a Visiting Scholar with the University of Illinois at Urbana-Champaign, Urbana, IL, USA, for part of 2012–2013. From 2013 to 2015, Shafigh worked as Lead Designer of PM machines for marine segment in Rolls-Royce Group, Trondheim, Norway. He continued his career as Electrical and Thermal Designer of traction motors for railway applications with Bombardier Transportation, Västerås, Sweden, from 2015 to 2018. He is currently an R&amp;D Senior Engineer and Project Leader with the Traction Department, ABB AB, Västerås, Sweden, as well as Visiting Researcher at Chalmers University of Technology, Göteborg, Sweden. Shafigh was also a visiting researcher at KTH Royal Institute of Technology for part of 2018 and has acted as the topic chair and speaker in several conferences and symposiums.</span><div><br /></div> </div> Madhusudhana, MPSYS<p>Landahlsrummet (room 7430), Hörsalsvägen 9, 7th floor</p><p>​ Road profile classification</p><div>​</div> <div>Examiner: Balazs Kulcsar, Dept of Electrical Engineering</div> <div>Supervisor: Anton Albinsson, Volvo Cars</div> <div><br /></div> <h2 class="chalmersElement-H2">Abstract</h2> <div><br /></div> <div>The current active suspension systems are tuned extensively on different types of roads to have a good vehicle comfort and handling for safety and economic savings. Even though different modes can be chosen depending on the mode of the driver, such as comfort or dynamic, no adaptation of these modes are made for different road surfaces. The knowledge of the road profile estimation can be used to adapt the damping coefficient on active or semi-active suspension control systems to improve the ride comfort and handling of a car. Recent improvement in communication has enabled advancement in approaches towards vehicle safety which makes it possible for communication between the road infrastructure and the vehicle. This thesis investigates design of robust Hinf observer for road profile estimation and frequency analysis of the road irregularities. They are further classified into different road standards based on roughness spectra.<br /></div> in the Age of Digitalisation<p>RunAn, conference hall, Chalmersplatsen 1, Kårhuset</p><p>​Welcome to the Transport Area of Advance initiative seminar on 26 September.</p>​<div>Programme and more information can be found on <a href="/en/areas-of-advance/Transport/calendar/initiative-seminar-2019/Pages/default.aspx" target="_blank">the event webpage &gt;</a><br /></div> <div><br /></div> <div><a href="">Register here &gt;</a><br /> <strong></strong></div> energy systems - important key to energy transition<p>Lecture Hall Palmstedt, university building, Chalmersplatsen 2, Campus Johanneberg</p><p>​The Fossil-free Energy Districts project, FED, is an innovative effort by the City of Gothenburg to decrease the use of energy and the dependence on fossil fuel in a built environment. A unique local marketplace for electricity, district heating and cooling has been developed together with nine strong partners. ​</p>​<div><div><a href="/sv/institutioner/e2/kalendarium/Sidor/Lokala-energisystem-viktig-pusselbit-i-energiomstallningen-.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more in the Swedish calendar</a></div></div> <div><br /></div> <div>The seminar will be held in Swedish. ​<br /></div> Laboratory Annual Seminar 2019<p>Virtual Development Laboratory, laboratory, Chalmers Tvärgata 4C, M-huset</p><p>Save the date for the 19th Wingquist Laboratory Annual Seminar on Digital Product Realization. ​</p>Keynote speakers and reports from the four research groups​: <div><ul><li><span style="background-color:initial">Systems Engineering Design </span></li> <li>Geometry Assurance &amp; Robust Design</li> <li>Geometry &amp; Motion Planning</li> <li>Automation​</li></ul> <div>Stay tuned for more info!</div> </div>