RTDS Implementation of Lyapunov Controller in Feedback Linearized Induction Motor Drive


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Abstract


Most of the stability study of induction motor is based on conventional steady state torque-speed characteristics. Stability study during transient conditions and rigorous stability analysis based on full nonlinear dynamical model are rather rare in literature. Global asymptotic stability of induction motor in the sense of Lyapunov is analyzed in this paper considering the full nonlinear dynamical model in stationary α-β reference frame. Controller is designed based on Lyapunov theorem. Stability of the closed loop system is investigated. Lyapunov controller is implemented in Real Time Digital Simulator (RTDS). Simulation and experimental results with Lyapunov controller are compared with those obtained using P-I controller
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Keywords


Feedback Linearization; Decoupling Control; Stationary Reference Frame; Lyapunov Global Stability; Induction Motor; Energy-Power Balance Equation

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References


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