Nonlinear Coordinated Control of STATCOM and Generator Excitation Based on Improved Dynamic Surface Control Method

Wen Lei Li; Wei Xing Lin

doi:10.4028/www.scientific.net/AMM.385-386.872

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Nonlinear Coordinated Control of STATCOM and...

Nonlinear Coordinated Control of STATCOM and Generator Excitation Based on Improved Dynamic Surface Control Method

Abstract:

For the single machine connected to infinite bus power system with uncertainties, one nonlinear coordinated control scheme for Static Synchronous Compensator (STATCOM) and excitation is proposed in this paper. Firstly, in order to avoid solving the differential algebraic equations (DAEs) model of system, we simplify the DAEs into the classical differential equations, and then a new nonlinear parameter strict feedback model is given. Secondly, in order to make the system achieve the desired results, the controller is designed in two parts based on improved dynamic surface control method (IDSC) and passive control techniques. The theoretical analysis shows that the derived controller can not only attenuate the influences of external disturbances, but also has strong robustness for system parameters variety. The control law obtained is more effective and the system globally and uniformly ultimately bounded can be achieved using full nature of nonlinear dynamic. Lastly, the further simulation results indicate that the proposed controller can ensure transient stability of the power system under large sudden fault.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

872-876

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.872

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Online since:

August 2013

Authors:

Wen Lei Li, Wei Xing Lin

Keywords:

DAEs, Dynamic Surface Control (DSC), Parameter Uncertainty, Power System, STATCOM

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References

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