Stator current oversampling: a way to improve reliability and efficiency in variable-speed electric motor drives
| Reference number | |
| Coordinator | ABB AB - ABB Corporate Research - Västerås |
| Funding from Vinnova | SEK 160 750 |
| Project duration | May 2016 - October 2016 |
| Status | Completed |
| Venture | Personal mobility between societal sectors |
Purpose and goal
The original time plan for the literature analysis was increased due to the unexpected increased amount of recently written material, which is a good sign of increased research interest in stator current oversampling. Topic awareness was raised through a seminar to the students. Some simulation and some basic measurements were performed, showing some results and highlighting the need of further efforts to understand, in particular, non-trivial iron-loss phenomena in machines. An oversampling hardware feasibility analysis based on available technology was also reached.
Expected results and effects
The analysis of algorithms based on current oversampling and the requirements of the technology led to the partial definition of a new Ph.D. position in the field of ´digitalisation of electric power´. The financing was approved and the selected student started on November 1st. Meanwhile, the person involved in the Vinnova mobility at KTH was granted an affiliated faculty position, and will act as co-supervisor of the Ph.D. student. Unfortunately, a KTH member involved in the project has left for a new job in the UK. Overall, however, the effects of the mobility have been really positive.
Planned approach and implementation
The structure and organisation of the project enabled a good implementation of the mobility. Both parties left the freedom to perform the analysis on the topic exploiting the available resources, either for theoretical discussions or for experimental tests. Since the topic was new for both parts, the three-month mobility aimed to create the grounds for further activities in the area. Possible future cooperations might consider mobilities in existing projects in this area, especially connected to the recently started Ph.D. project, which aims at a further exploration of the topic.