International Journals Kyo-Beum Lee and Frede Blaabjerg, “Sensorless DTC-SVM for Induction Motor Driven by a Matrix Converter Using a Parameter Estimation Strategy,” IEEE Transactions on Industrial Electronics, vol. 55, no. 2, pp. 512–521, Feb. 2008. -SCI
2008
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This paper presents a new direct torque controlled space vector modulated method to improve the sensorless performance of
matrix converter drives using a parameter estimation scheme. The flux and torque error are geometrically combined in a new flux
leakage vector to make a stator command voltage vector in a deadbeat manner. A new sensorless method of estimating the rotor
speed, flux, stator resistance, and rotor resistance is derived and verified with experimental results. Common terms in the error
dynamics are utilized to find a simpler error model involving some auxiliary variables. Using this error model, the state estimation
problem is converted into a parameter estimation problem assuming the rotor speed is constant. The proposed adaptive schemes
are determined so that the whole system is stable in the sense of Lyapunov. The effectiveness of the proposed algorithm is verified
by experiments.
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