Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 3, Pages 2005-2014Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.2973901
Keywords
Electrical machine; interior permanent magnet; model order reduction; orthogonal interpolation method; real-time control; rotor frame of reference; singular value decomposition
Categories
Funding
- Estonian Research Council, Tallinn, Estonia [PUT1260]
- Academy of Finland, Helsinki, Finland [287395, 297345]
- Academy of Finland (AKA) [287395, 287395, 297345, 297345] Funding Source: Academy of Finland (AKA)
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In this article, a fast-dynamic model based on a model order reduction method is proposed to control a permanent magnet synchronous machine in a wide range of speeds. Experimental results verify the feasibility of this approach.
In the control of electric drives, inaccurate estimation of the motor parameters affects the robustness of the control. This effect is observed particularly when the linear lumped parameter-based models are employed to represent a machine composed of nonlinear magnetic materials. Finite-element (FE) models consider the material nonlinearity accurately. However, implementing these models in a real-time system is challenging due to the computational burden. In this article, we propose a fast-dynamic model, based on a model order reduction method, to control a permanent magnet synchronous machine in a wide range of speed. The stator currents in the rotor frame of reference are given as inputs to a reduced FE model, which computes the nodal values of the magnetic vector potential and thereafter the flux linkages. A discrete-time model is used to control the rotor speed and the stator current components. Experiments on a 2.2 kW interior permanent magnet synchronous machine verify the viability of the proposed model.
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