Parametric Analysis for Performance Optimization of Line-Start Synchronous Motor with Interior Asymmetric Permanent Magnet Array Rotor Topology

Line-start synchronous motors have attracted researchers’ interest as suitable replacements of asynchronous due to their high efficiency, which has been provoked by strict regulations regarding applicable efficiency classes in the EU market. The research becomes even more challenging it takes into consideration diverse rotor topologies with different magnet locations for this type motor. configuration an interior asymmetric permanent (PM) array was chosen analysis and optimization paper specific is particularly terms placing magnets adequate dimensions existing motor a squirrel cage winding, order simultaneously obtain good operational characteristics such power factor, overloading capability low material consumption. Therefore, optometric performed find best air gap length, thickness, width number conductors per slot, along modifications slot. outer remained unchanged compared starting model line-start derived from motor, product company Končar. optimized obtained higher factor than model, synchronization capabilities.