FPGA Based Torque and Flux Estimator of Direct Torque Control for Induction Machine Drives
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 imp...
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| Main Author: | |
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| Format: | Article |
| Language: | en |
| Published: |
2009
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| Subjects: | |
| Online Access: | http://eprints.utem.edu.my/id/eprint/8753/1/journal_transmisi.pdf http://eprints.utem.edu.my/id/eprint/8753/ |
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| Summary: | 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. |
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