Yang, S.-C.S.-C.YangLorenz, R.D.R.D.LorenzSHIH-CHIN YANG2020-01-132020-01-132011https://scholars.lib.ntu.edu.tw/handle/123456789/448293Surface permanent magnet machine self-sensing at zero and low speeds using improved observer for position, velocity, and disturbance torque estimationconference paper10.1109/IEMDC.2011.59946212-s2.0-80052559881https://www.scopus.com/inward/record.uri?eid=2-s2.0-80052559881&doi=10.1109%2fIEMDC.2011.5994621&partnerID=40&md5=00c644ec173be7e8bb4dd7b9987ff5b3