BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Understanding and Estimating Physical Parameters in Electric Motor
 s using Mathematical Modelling - Geoff Walker\, Artesis LLP
DTSTART:20180206T130000Z
DTEND:20180206T140000Z
UID:TALK100753@talks.cam.ac.uk
CONTACT:Dr Vivien Gruar
DESCRIPTION:Rotating electrical machinery such as pumps\, fans\, and compr
 essors underpin a lot of our modern-day infrastructure\; they are used in 
 the water industry\, throughout manufacturing\, and in turbines/ for power
  generation. These devices are generally powered by three-phase induction 
 motors\, and the reliable performance of these motors (and the driven equi
 pment) is critical in many sections of industry. \n\nArtesis is a small co
 mpany that provides remote monitoring of this equipment\, looking at only 
 the voltage and current drawn by the motor to identify (mostly mechanical)
  faults in the motor and in the driven equipment. \n\nTo do this\, we use 
 a black-box modelling algorithm which approximates the motor as a linear s
 ystem – from a sample of voltage and current data\, the algorithm extrac
 ts the best-fit linear relationship between voltage and current\, and the 
 leftover ‘residual’ current is then further analysed by examining its 
 Fourier spectrum. The model consists of a number of parameters which do no
 t themselves have any physical meaning. However\, these parameters should 
 correspond to physical parameters of the motor itself such as winding resi
 stances\, impedances\, and slip (a parameter related to the output torque)
  and the first aim of this project is to extract this meaningful physical 
 data from the parameters produced by the model. Time permitting\, we would
  then like the student to speculate (both using some physical insight and 
 a bit of guesswork) how faults on the equipment\, as well as operational c
 hanges\, might influence these physical parameters and therefore the param
 eters in the mathematical model\; and some of these hypotheses can be test
 ed using a test rig. \n\nThis project is relatively open ended though it b
 uilds on work done in previous PMP project from 2016. There should be some
  time to visit either a real customer site or take at quick tour of the en
 gineering department\, and we hope this project will provide an opportunit
 y for the student to see how mathematics interacts with the real world - a
 nd hopefully for them to develop a taste for solving problems that are imp
 ortant in industry. \n
LOCATION:MR3 Centre for Mathematical Sciences
END:VEVENT
END:VCALENDAR