Soft Magnetic Material Core in PMSM: A Comprehensive Review

Abstract

This systematic literature review examines the widespread utilization of Soft Magnetic Material (SMM) cores in Permanent Magnet Synchronous Motors (PMSM). The objective is to present a thorough summary of the existing research in this area, emphasizing notable progress, obstacles and potential avenues for further exploration. The rising demand for energy-efficient motors has spurred the adoption of PMSMs with SMM cores. However, a lack of consolidated understanding hampers progress. Employing the PRISMA approach, this study systematically searched academic databases like Scopus and the Institute of Electrical and Electronics Engineers (IEEE), amassing a comprehensive collection of (n=29) relevant studies, reviews and articles concerning soft magnetic composites in PMSM cores. Advanced keyword searches employing terms such as "soft magnetic material," "PMSM," and "core" revealed the crucial role played by soft magnetic composites in enhancing PMSM efficiency. The findings were categorized into key themes encompassing magnetic motor design and analysis, energy storage, electromagnetic systems and analytical modelling. The review highlights the importance of SMM cores in boosting the performance of PMSMs. This enhancement encompasses improvements in efficiency and power density and it sheds light on critical factors such as SMM materials, manufacturing methods and design considerations. Furthermore, it discusses challenges, including core losses and material expenses. In summary, this thorough review underscores the crucial role played by SMM cores in the advancement of efficient PMSMs, providing valuable insights into material choices, production techniques and design optimization. Despite advancements, challenges in minimizing core losses and reducing material costs persist, warranting future research to focus on innovative approaches for enhancing the application of SMM cores in PMSMs, contributing to sustainable energy solutions.