Improved Resonant ESO-Based Sampling Delay Error Suppression Method for PMSM Drives Using a Single DC-Link Current Sensor. - Pengcheng Zhu; Jiming Zou; Wentao Zhang; Yanchen Zhai; Jibin Zou; Sergio Vazquez; Leopoldo García Franquelo; Yongxiang Xu (IEEE Trans. Ind. Electron., 2026)