Low-Complexity Three-Vector Based Model Predictive Flux Control for Induction Motors
编号:44
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更新:2023-06-14 10:47:54
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摘要
In this paper, a low-complexity model predictive flux control (MPFC) with a fixed switching frequency is proposed for induction motors (IMs) fed by a two-level voltage source inverter. The appropriate active voltage vectors (AVVs) are determined according to estimated torque derivation. The generalized discrete space vector is used for improving the controller performance, and the computation time is mitigated by derivation of the extremum of the flux control objective. To ensure the controller switching frequency is fixed, the synthesized control voltage vector is implemented using a symmetrical three-vector method. The proposed controller is evaluated at 5 kHz sampling frequency and the achieved results validate the effectiveness of the strategy for improving the steady-state performance while maintaining a constant switching frequency around 5 kHz over a wide range of operating conditions.
关键词
Model predictive flux control (MPFC), active voltage vector (AVV), induction motors (IMs), steady-state performance, switching frequency (SF).
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