학술논문
dq0-modeling of interior permanent-magnet synchronous machines for high-fidelity model order reduction
Document Type
Conference
Source
2017 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) & 2017 Intl Aegean Conference on Electrical Machines and Power Electronics (ACEMP) Optimization of Electrical and Electronic Equipment (OPTIM) & 2017 Intl Aegean Conference on Electrical Machines and Power Electronics (ACEMP), 2017 International Conference on. :357-363 May, 2017
Subject
Language
Abstract
This paper presents a dq0 flux-linkage based electrical model for permanent-magnet synchronous machines. To obtain the relationship between dq0 flux-linkages and currents, a series of magnetostatic finite-element calculations for various dq0 currents at different rotor positions is carried out. This dataset has then to be inverted to avoid having to derive the flux-linkages in Simulink, thus improving the numerical stability of the model. The model was validated using a 12/10 delta- and star-connected fractional-slot concentrated-winding permanent magnet synchronous machine presenting 3rd-order harmonics in the back-emf. Results show that considering only a fraction of the rated current for the 0-sequence component allows to take circulating currents in a delta-connected machine into account, improving the accuracy of the model compared to a model based on the d-and q-axis alone. Torque and qd0 current waveforms resulting from the presented model are comparable to the ones obtained with finite-element both in terms of average value and harmonic content.