FEMM Hub delivers two successful training courses in June
The FEMM Hub delivered two successful training courses in June. Delivering these sessions online allowed our partners to join from locations across the UK, Europe and beyond.
The first session titled “AC Power Losses” took place on Monday 13 June 2022 at 10am and was delivered by Hub Director Professor Geraint Jewell (University of Sheffield) and Dr Rafal Wrobel (Newcastle University) who works on Grand Challenge 1.1. The session covered key issues of AC conductor loss, from fundamentals of the electromagnetic mechanisms at play through to practical strategies for minimising the magnitude of losses. The training was very well received by participants.
FEMM Hub training sessions
Our training sessions are open to all hub partners - if you would like to be added to our mailing list, please get in touch via email at FEMMhub@sheffield.ac.uk.
AC power losses
13 June 2022, 10am-1pm (online)Presented by Professor Geraint Jewell (University of Sheffield, FEMM Hub Director) and Dr Rafal Wrobel (Newcastle University).Abstract
Managing copper loss is often the limiting factor on electrical machine power density. In terms of a-priori loss estimation at the design stage, copper loss is usually regarded as being more straightforward than core loss.
However, there are a number of complicating factors in the accurate prediction of copper loss in some machines, foremost amongst which is the issue of AC loss in conductors which include phenomena such as skin and proximity effects. A failure to properly account for AC conductor loss effects during machine design and the selection of the conductor format can, in some circumstances, lead to losses which are multiples of the loss predicted from more straightforward and rudimentary considerations.
With the demand for machines to operate at ever-increasing electrical frequencies, the need to account for AC conductor loss during design and manufacture is becoming increasingly important, in particular the trade-off between the desire to use larger, rectangular cross-section conductors for a high slot-fill factor and their tendency to increase AC conductor loss.
FEMM Hub Director Professor Geraint Jewell and Dr Rafal Wrobel from Newcastle University will jointly present this session and will cover the key issues of AC conductor loss, from fundamentals of the electromagnetic mechanisms at play through to practical strategies for minimising the magnitude of the losses. The content has been structure to allow engagement from non electrical engineering attendees with the initial sections focusing on establishing a basic understanding of the electromagnetic and electrical principles which underpin AC conductor loss.
This training session is open to all members of staff at our hub partners.
To sign up for this session, email l.j.farnsworth@sheffield.ac.uk.
The second session took place on Monday 20 June 2022 at 1pm, titled “Manufacturing opportunities for future electrical machines". This session was jointly delivered by Dr Jill Miscandlon (AFRC) and Dr Lloyd Tinkler and colleagues at the AMRC. The popular session introduced novel manufacturing routes which have been used for the manufacture of non-active components in electrical machines.
FEMM Hub training sessions
Our training sessions are open to all hub partners - if you would like to be added to our mailing list, please get in touch via email at FEMMhub@sheffield.ac.uk.
Manufacturing opportunities for future electrical machines
20 June 2022, 1pm-3.30pm (online)Presented by Dr Jill Miscandlon (Advanced Forming Research Centre) and Dr Lloyd Tinkler (Advanced Manufacturing Research Centre).Abstract
Approximately 50% of an electrical machine's weight comes from the non-active components. These components are typically machined from bulk forgings or castings and have not been designed in an optimal way. Changing the method of manufacture could lead to opportunities for light-weighting and improved design, with a range of novel manufacturing processes available depending on the requirements of a specific component.
This course will introduce novel manufacturing routes which could be used for the manufacture of non-active components in electrical machines. The technologies will be introduced and the benefits of each will be highlighted, with examples of potential electrical machine components given.
Information will also be provided on how some of these technologies can aid in the development of more sustainable manufacturing routes, eg through the use of near neat shape preforms to reduce material wastage, or cold forming processes to reduce energy consumption during manufacture.
This course is suited to electrical machine designers and researcher. It aims to give attendees a good appreciation of the potential of novel manufacturing technologies, and be able to to consider alternative manufacturing routes for non-active components in future machine designs. This course will be delivered by Dr Jill Miscandlon from the Advanced Forming Research Centre, and Dr Lloyd Tinkler from the Advanced Manufacturing Research Centre, both of which are part of the High Value Manufacturing Catapult.
Agenda
1pm Introduction
1.15pm Technology overview part 1
2pm Break
2.15pm Technology overview part 2
3pm Opportunities for sustainable manufacture
To sign up for this session email l.j.farnsworth@sheffield.ac.uk.
If you have any questions about the FEMM Hub training course, please get in touch with Hub Manager Laura O’Keefe at l.okeefe@sheffield.ac.uk. The next session will be taking place on the 18 August 2022, titled “NDT and digital engineering”.