Design, optimization and performance analysis of 250 kW permanent magnet machine for hybrid electric propulsion of civil aircrafts

Hybrid technology has gained its popularity in recent times. Stringent legislation and environments commitments have increased interest of aviation industry in electrification of aircrafts. Hybrid electric propulsion system is one of the aspects which is being explored to reduce dependence on fuel. The integration of Permanent Magnet Synchronous Motors (PMSMs) into hybrid electric propulsion systems for civil aircraft represents a significant advancement in aerospace engineering. This study focuses on developing and refining a 250 kW PMSM, engineered to drive ducted fans, an essential element in the propulsion mechanisms of civilian aircraft. The challenge in designing these propulsion systems lies in achieving the optimal balance between high power and torque output and the essential goals of minimizing weight and energy losses. PMSMs emerge as a viable answer to this challenge, due to their remarkable efficiency and compact size. This study seeks to leverage these attributes of PMSMs, to fulfill the requirements of proficient and powerful aircraft propulsion systems. The findings of this study indicates that careful optimization of these dimensions led to reduced hysteresis, eddy current losses and overall weight of the PMSM’s.