Rotor Geometry Design of Interior PMSMs With and Without Flux Barriers for More Accurate Sensorless Control
作者： Peter Sergeant , Frederik De Belie , Jan Melkebeek
关键词: Voltage 、 Constant (mathematics) 、 Geometry 、 Inductance 、 Matrix (mathematics) 、 Flux 、 Position (vector) 、 Computer science 、 Control theory 、 Rotor (electric) 、 Finite element method
摘要: At low speed, the rotor-position estimation in sensorless control is often carried out based on evaluation of phase-current ripples resulting from supply high-frequency voltage test signals. However, affected by cross-saturation machine, less accurate position estimations at higher loads. As importance interior permanent-magnet synchronous machines (IPMSMs) increases, it useful to design IPMSMs such a way that they are optimized for control. The goal this paper determine aspects rotor geometry an IPMSM minimize error due cross-saturation. Simulations drive usually state-space model with constant q- and d-axis inductances no mutual inductances. In paper, technique improved calculating inductance matrix several finite-element models, which allows study effect variable performance discussed, both without flux barriers, order reduce caused
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