Czasopismo | PRZEGLĄD ELEKTROTECHNICZNY | Rocznik 2016 - zeszyt 2

The T-polynomial approach for LQG control applied to a Switched Reluctance Motor (SRM)

10.15199/48.2016.02.44

nr katalogowy: 96944
10.15199/48.2016.02.44

This paper proposes a tuning procedure that combines the well known T-polynomial, from predictive control, with the LQG algorithm. The proposed scheme was successfully applied to a speed loop of a switched reluctance motor (SRM), which is known by its specific issues related to driving and control. Such characteristics make the SRM a strong set up to exploit the proposed solution. Results are compared with both the predictive controller approach GPCBC and the classical LQG/LTR, analysed regarding the transient and disturbance rejection. Power analysis of the control signal shows a power efficiency improvement favourable for the proposed approach. Streszczenie. Opisano sposób sterowania silnikiem reluktancyjnym wykorzystująca metodę T-wielomianu z algorytmem LQG - linear quadratic Gaussian. Metodę porównano z innymi metodami jak GPCBC I LQG/LTR pod kątem tłumienia zakłóceń i stanów chwilowych. T-wielomianowa metoda sterowania przełączalnym silnikiem reluktancyjnym Keywords: T-polynomial, LQG control, Switched Reluctance Motor (SRM). Słowa kluczowe: T-wielomian, silnik reluktancyjny, sterowanie LQG. Introduction It is well know that due to its constructive simplicity, inherent robustness, high torque density and potential for low-cost large scale production, switched reluctance motors (SRM) are now a modern alternative regarding electromechanical conversion on a variable speed solution [1,2]. For high performance applications, the SRM usually operates under magnetic saturation condition [3]. Such characteristics leads the motor into a strongly nonlinear behaviour [4], with several challenges to both constructive and control investigation, e. g. torque ripple minimization, wide range speed operation adjustment, fault tolerant drive control and acoustic noise reduction. For low speed condition, current set-point tracking is mandatory for a proper speed and/or torque control [5]. However, at high speed operation, current control is con[...]

Bibliografia

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