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A direct torque-controlled interior permanent-magnet synchronous motor drive without a speed sensor
journal contributionposted on 2023-05-16, 19:18 authored by Rahman, MF, Zhong, L, Md Enamul Haque
This paper reports results of further investigation of the so-called direct torque control (DTC) technique to an interior permanent magnet (IFM) synchronous motor drive. This torque control technique for IFM motors requires no dq-axes current controllers and coordinate transformation networks. A completely sensorless IFM motor drive with DTC, which uses a new speed estimator from the stator flux linkage vector and the torque angle, is presented. It is shown that including the torque angle in the estimation process results in a far more accurate transient speed estimator than what is reported in the existing literature.
Publication titleIEEE Transactions on energy conversion
Department/SchoolSchool of Engineering
Place of publicationUSA