An application of decentralized observer theory to interconnected power systems

Gopal, M.; Ghodekar, J. G.

doi:10.1109/tsmc.1985.6313362

Cited by 5 publications

(2 citation statements)

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“…THE PROPOSED IDENTIFICATION SCHEME Unknown Input Observer (UIO) [13] is usually established to estimate the unknown input signals in the control system by the reconfigured system state equation, which use the relationship between system model with the unknown input and known system model. In this paper, three phase BEMFs of the BLDC motor are considered as unknown input disturbance signals.…”

Section: Motor Modelmentioning

confidence: 99%

Variable structure sliding mode based unknown input observer for speed identification of brushless DC motors

Yan

Lin

Wang

et al. 2009

2009 IEEE International Conference on Robotics and Biomimetics (ROBIO)

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A variable structure sliding mode unknown input observer (VSSM-UIO) is investigated to estimate the speed of permanent magnet brushless DC motor (BLDC) in this paper, which features in very good robustness to the parameters uncertainty and disturbance. Using the phase voltage mathematical model of BLDC, the observer is deduced by supposing back-EMF as an input disturbance, which has a good performance of speed and rotor position identification. By means of the designed Lyapunov function, the observer is proved to be stable in the infinite time and robust, even if the load torque disturbance, the parameter uncertainties exist. Simulation results show the validity of the proposed strategy.

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Section: Motor Modelmentioning

confidence: 99%

Variable structure sliding mode based unknown input observer for speed identification of brushless DC motors

Yan

Lin

Wang

et al. 2009

2009 IEEE International Conference on Robotics and Biomimetics (ROBIO)

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“…However, in both Yan and Edwards (2008b) and Yan et al (2003), interconnection terms are employed in the observer design and thus the designed observers are not decentralised. Decentralised observers are proposed for linear large scale systems in Gopal and Ghodekar (1985) where it is required that the interconnections can be reconstructed by dynamical systems. Linear systems with nonlinear interconnections are studied in Tlili and Braiek (2009) where all the nonlinear terms are considered as uncertainties and the designed observer is not decentralised.…”

Section: Introductionmentioning

confidence: 99%

Decentralised Observation Using Higher Order Sliding Mode Techniques

Yan

Fridman

Spurgeon

et al. 2014

IFAC Proceedings Volumes

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In this paper, a decentralised observer scheme is proposed for a class of nonlinear interconnected systems based on higher order sliding mode techniques. It is not required that the nominal subsystems or the isolated nominal subsystems are linearizable. Under the assumption that the isolated nominal subsystems have uniform relative degree, local coordinate transformations are used to transform these systems to a new interconnected system which facilitates higher order sliding mode design. Observers composed of a set of decoupled dynamical systems are designed such that the observation error dynamical systems converge to zero exponentially. The designed observer is continuous and chattering can be avoided. The configuration is convenient for practical implementation as it is a decentralised scheme.

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A hardware-aware CPU power measurement based on the power-exponent function model for cloud servers

Lin

Gao

et al. 2021

Information Sciences

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An application of decentralized observer theory to interconnected power systems

Cited by 5 publications

References 0 publications

Variable structure sliding mode based unknown input observer for speed identification of brushless DC motors

Variable structure sliding mode based unknown input observer for speed identification of brushless DC motors

Decentralised Observation Using Higher Order Sliding Mode Techniques

A hardware-aware CPU power measurement based on the power-exponent function model for cloud servers

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