Elimination of Mutual Flux Effect on Rotor Position Estimation of Switched Reluctance Motor Drives Considering Magnetic Saturation
作者： Jin Ye , Berker Bilgin , Ali Emadi
DOI: 10.1109/TPEL.2014.2337111
关键词: Magnetic reactance 、 Rotor (electric) 、 Control theory 、 Physics 、 Magnetic reluctance 、 Flux linkage 、 Magnetic flux 、 Switched reluctance motor 、 Phase (waves) 、 Inductance
摘要: In this letter, an approach to eliminate the mutual flux effect on rotor position estimation of switched reluctance motor drives without a priori knowledge is proposed, while operating in both linear and saturated magnetic regions. Considering saturation, incremental-inductance using phase current slope difference method can be classified into three modes: Modes I–III. At positive-current-slope negative-current-slope sampling point one phase, sign other changes I II, but does not change Mode III. Theoretically, error introduced by dependent, which ±1% ±7% for studied II. However, III, exist. Therefore, two methods are proposed ensure that working III exclusively. The first variable-sampling outgoing variable-hysteresis-band control incoming phase. Simulation experimental results show improves accuracy 2° compared with conventional control.
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