Lin, C.-K.C.-K.LinLiu, T.-H.T.-H.LiuLo, C.-H.C.-H.Lo2019-04-292019-04-292009https://scholars.lib.ntu.edu.tw/handle/123456789/406000Sensorless interior permanent magnet synchronous motor drive system with a wide adjustable speed rangejournal article10.1049/iet-epa:20080046WOS:000267424800006