NANJING CITY, JIANGSU PROVINCE, CHINA, January 21, 2026 /EINPresswire.com/ -- The global elevator industry continues to ...

Abstract: Permanent-magnet synchronous machines (PMSMs) are widely used in robotics, rail transportation, and electric vehicles owing to their high power density, high efficiency, and high power ...

Abstract: This paper proposes two new topologies for quarter sub-harmonic-based brushless wound rotor synchronous machines (WRSMs). These topologies incorporate an additional quarter-harmonic ...