Design and optimization of a high power density machine for flooded industrial pump

Abstract

A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk Φ Abstract --This paper presents the design optimization procedure of a high power-density, permanent magnet synchronous machine for industrial pump applications. The designed machine drives an electric, oil flooded pump. In order to achieve higher torque-density, a fractional slot machine (8 poles, 9 slots) with double layer (concentrated) winding has been selected after a preliminary trade-off study, which considered several slot/pole combinations and winding configurations. The developed machine provides low torque ripple and short end windings, which contribute to lower axial length and higher efficiency. The electromagnetic performances have been evaluated by using finite element method and the lamination geometry has been optimized through a genetic. The final results are presented highlighting the achieved design targets.Index Terms-PMSM, high power density machine, finite element method, Genetic Algorithm (GA) optimization.

Considerations on the Effects That Core Material Machining Has on an Electrical Machine's Performance

“…Based on the design requirements and constraints presented in previous works [18] and [19], an 8-pole/9-slot PMSM has been designed and optimized. In [20] the thermal management for the designed PMSM has been investigated in detail.…”

“…The main aim of this paper is thus to investigate the aforementioned manufacturing effects on electrical machine design and their overall performance. As vessel to investigate these effects, a previously developed 9-slot/8-pole, permanent magnet synchronous motor (PMSM) [18,19] for an aerospace pump application is considered. In order to do this, three main data sets (DS) of material properties are used, namely DS1 -The data provided by the material supplier for the laminated sheet steel (as provided in the data sheet).…”

Trade-off analysis and design of a high power density PM machine for flooded industrial pump

“…For a motor-driven pump, one of the most convenient methods to cool the machine is to use the oil of the pumping system, which gives excellent cooling capabilities [3]. However, the added cooling capability due to flooded machines is still not enough to guarantee an optimal electrical machine performance, especially in terms of high power, reliability, cost-effectiveness and efficiency [4].…”

“…In order to satisfy the requirements of the project, one of the best machine technologies available today is that of the Permanent Magnet Synchronous Machines (PMSM) [4,5]. In fact, PMSMs have significant advantages compared to other types of electric motors such as higher torque and power density, higher efficiency, simple structure and low maintenance [6].…”

“…Considering the high power to mass and power to volume ratio associated with this application, in addition to the constraints on the available space and mass, different machine topologies have been investigated [4]. In order to satisfy the requirements of the project, one of the best machine technologies available today is that of the Permanent Magnet Synchronous Machines (PMSM) [4,5].…”