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Direct Torque Control Induction Motor Drive with Improved Flux Response
Author(s) -
Bhoopendra Singh,
Shailendra Jain,
Sanjeet Dwivedi
Publication year - 2012
Publication title -
advances in power electronics
Language(s) - English
Resource type - Journals
eISSN - 2090-1828
pISSN - 2090-181X
DOI - 10.1155/2012/764038
Subject(s) - stator , control theory (sociology) , direct torque control , vector control , total harmonic distortion , induction motor , flux (metallurgy) , torque , voltage , distortion (music) , digital signal processing , controller (irrigation) , computer science , engineering , control engineering , electronic engineering , physics , control (management) , materials science , electrical engineering , artificial intelligence , thermodynamics , amplifier , agronomy , cmos , biology , metallurgy
Accurate flux estimation and control of stator flux by the flux control loop is the determining factor in effective implementation of DTC algorithm. In this paper a comparison of voltage-model-based flux estimation techniques for flux response improvement is carried out. The effectiveness of these methods is judged on the basis of Root Mean Square Flux Error (RMSFE), Total Harmonic Distortion (THD) of stator current, and dynamic flux response. The theoretical aspects of these methods are discussed and a comparative analysis is provided with emphasis on digital signal processor (DSP) based controller implementation. The effectiveness of the proposed flux estimation algorithm is investigated through simulation and experimentally validated on a test drive

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