Nonlinear internal-model control for switched reluctance drives

摘要

A nonlinear internal-model control (IMC) based on suitablencommutation strategy for switched reluctance motors (SRMs) is proposed.nIn the commutation strategy, a fixed critical rotor position is definednas the commutation point, which results in reduced computation. Combinednthe simplicity of the feedback linearization control and the robustnessnof IMC structure, the proposed drive has excellent dynamic and staticnperformances for the torque and current control. The scheme is analyzed,nand some important properties are obtained. Simulations and experimentsnwere carried out on a 7.5 kW four-phase SRM, and the results show thatnthe ripple of the output torque is very low in spite of model-plantnmismatches