A new inductance estimator based on Lagrange Form polynomials for real-time switched reluctance machine control

This paper presents a new methodology for modeling the inductance curves of switched-reluctance machines using cubic splines based on Lagrange form polynomials. The proposed allows estimation instantaneous and derivative in each phase machine. All steps are presented discussed, detailing information necessary its use. results an experimental computational simulation, both as motor generator, estimated compared with design result. estimator was embedded low-cost DSP, machine driven bench. simulation results, allowing evaluation accuracy level obtained by estimator. combines precision low cost, which makes this method strong candidate systems that require parameters real time, such torque flux, permitting implementation control techniques.