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This paper presents the design and evaluation of an observer-based integral sliding mode controller for sensorless Permanent Magnet Synchronous Motor (PMSM) drive based on the Field Programmable Gate Array (FPGA) technology. For enhancement of robustness, a flux angle estimator using an improved sliding mode observer is proposed to estimate the current and(More)
This paper presents a distributed model predictive control strategy for interconnected process systems employing predictive asymptotic constraints. The plant-wide control is facilitated by the constructive method of online stabilisations that is applicable to the model predictive controllers (MPC) as receding-horizon stability constraints. The plant-wide(More)
In this work, a robust stabilizability condition for discrete-time interconnected systems is derived from the quadratically delay-robust dissipativity of the open-loop subsystems and the asymptotically positive realness constraint (APRC) presented previously. Linear interconnections with a single coupling delay element and persistent input disturbances are(More)
This paper presents the design and implementation of an adaptive extended Kalman filter (EKF) for the sensorless Permanent Magnet Synchronous Motor (PMSM) on a Field Programmable Gate Array (FPGA) chip. The rotor position and speed of the motor are estimated by the adaptive EKF and their estimates are then used in vector control of the PMSM. Most EKF(More)
This article addresses the robust exponential stabilization problem of underactuated mechanical systems in the presence of bounded external disturbances using sliding mode control. Based on the Lyapunov method, a sufficient condition for the existence of the smallest possible ball which bounds the reduced-order sliding mode dynamics, is first derived in(More)
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