Design Optimisation of SegSta 12S-12P Permanent Magnet Flux Switching Machine

This paper presents the improvement of electromagnetic torque performance of segmental stator(Segta) 12Slot-12Pole PMFSM based on the design optimisation. It derives and implement using the Deterministic Optimisation Method (DOM) which solely involve at the geometrical structure of the motor. Therefore, the parameter that was involves are explained in this paper. DOM is a local optimisation method and involves many cycles of parameter improvement in order to obtain an optimum performance based on the final parameter achieved. Furthermore, the overall mass of the permanent magnet was retained at 2 kg throughout the whole optimisation process. Prior to the initial average torque performance from the previous research which was 222.30 Nm and the maximum power output is 243.63 kW, the main objective was to achieve a higher average torque and maximum power output performance by applying design structure refinement. The initial design structure, parameter and specification are calculated and specified based on conventional 12S-14P PMFSM. Each parameter (P1-P5) that involves with optimisation are explained in this paper. The target of this optimisation is to achieve torque performance higher than the initial design torque output. In which, the optimise design able to achieve a higher average torque output, 252.24 Nm compared to the initial design torque performance.