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FPGA Based Torque and Flux Estimator of Direct Torque Control for Induction Machine Drives

*Aiman Zakwan Jidin  -  Ecole Supérieur d’Ingénieur en Electronique et Electrotechnique Paris (ESIEE Paris), France, France
Tole Sutikno  -  Universitas Ahmad Dahlan (UAD), Indonesia, Indonesia
Auzani Jidin  -  Universiti Teknikal Malaysia Melaka (UTeM), Malaysia, Malaysia
Nik Rumzi Nik Idris  -  Universiti Teknologi Malaysia (UTM), Malaysia, Malaysia
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This paper presents a new design of the torque and stator flux estimators for Direct Torque control (DTC) for Field Programmable Gate Array (FPGA) implementation, which permit very fast calculations.An alternative variable word-size approach in two’s complement fixed-point format is used for the implementation, in order to minimize calculation errors and the hardware resource usage. The simulation results of DTC model in Matlab, which performed double-precision calculations, are used as references to digital computations executed in FPGA implementation.The Hardware-in-the-loop (HIL) method is used to verify the minimal error between Matlab simulation and the experimental results, and thus the well-functionality of the implemented estimators.

Keywords: FPGA, DTC, HIL

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Last update: 2024-05-30 11:26:57

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