Controle vetorial em máquinas de relutância variável usando transformação dq não senoidal
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2021-07-21
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Universidade Federal de Goiás
Resumo
This work presents a method of Field Oriented Control and torque ripple minimization for
Variable Reluctance Machines. It utilizes a non-sinusoidal generalised Park transform, also
known as dqx transform, and the derivatives of inductance of the machine as state variables.
As a consequence, the mathematical formulation becomes simpler than previous works in
literature, which use the traditional Park transform. To validate the method proposed,
phase inductances and its derivatives for a 6/4 machine were obtained from Finite Element
Analysis simulations and used in the calculations. Magnetic saturation effects were also
considered. The mathematical formulation, numeric and simulation results are shown.
Simulation results demonstrate that the method proposed in this work effectively reduced
torque ripple by 2.9 times, torque ripple factor was reduced by 4.65 times and Joule
Effect losses are decreased by 79.68% in comparison with conventional driving strategies.
Flux weakening and flux enhancement simulations were also performed and showed that
machine speed increased up to 19.22% with respect to base speed.
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VILELA, W. M. Controle vetorial em máquinas de relutância variável usando transformação dq não senoidal. 2021. 87 f. Dissertação (Mestrado em Engenharia Elétrica e da Computação) - Universidade Federal de Goiás, Goiânia, 2021.