IEEE Access special section editorial: Advanced energy conversion systems based on multi-port electrical machines

Over the last decade, with the merits of high efficiency, compactness, and flexibility, energy conversion systems based on multiple-electrical-port and multiple-mechanicalport electrical machines have attracted widespread attention from both academia and industry. This concept has been adopted in many industrial applications, such as wind power generation, ship shaft power generation, ship electric propulsion, electric vehicles, rail transportation, more/all electric aircrafts, and ac/dc microgrids. Due to the ever-increasing demand for highly reliable and cost-effective energy conversion systems, advanced machine/converter topologies, modeling approaches, control strategies, and reliability, evaluations of multi-port electrical machines and drive systems are in great need