High-Efficiency Drive Method of Adjustable Field IPMSM Utilizing Magnetic Saturation. - Kiyohiro Iwama; Toshihiko Noguchi (IEEE Access, 2022)

Three-Phase Inverter Fed Adjustable Field IPMSM Drive Utilizing Zero-Sequence Current. - Kiyohiro Iwama; Toshihiko Noguchi (IEEE Trans. Ind. Electron., 2023)

Dual Inverter Fed Adjustable Field IPMSM Using DC Zero-Sequence Current. - Kiyohiro Iwama; Yutaro Hiyoshi; Toshihiko Noguchi (IEEE Trans. Ind. Electron., 2025)