H∞ Loop Shaping-based Robust Control Design of PSS and TCSC for Dynamic Stability Enhancement

Power system low frequency oscillations influence dynamic behaviour of a complex power system and threaten its security. The dynamic performance of power system can be improved by damping low frequency oscillation with the help of supplementary controllers. This paper presents the design of supplementary controller for Static Var Compensator (SVC) to damp low frequency, in particular inter-area oscillations. The controller is designed based on H ∞ loop-shaping technique in which the robust stabilization of the normalised coprime factor plant is formulated into a generalized H ∞ problem. Moreover, the selection of proper feedback signal from the available measurements of the system plays vital role in designing the controller. The residue analysis is used to select the suitable locally available signal as an input signal to the proposed controller. Two power systems with varying sizes and complexities are used to test with the design of the proposed controller. The power systems include the benchmark, two-area system for low frequency oscillation studies and a modified version of a practical system. Both eigenvalue analysis and time domain simulations are used to study the performance of the proposed H ∞ controller.

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Bibliography of FACTS: 2008 Part I IEEE working group report

Varma

Rahman

Litzenberger

2010

IEEE PES General Meeting

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H∞ Loop Shaping-based Robust Control Design of PSS and TCSC for Dynamic Stability Enhancement

Cited by 3 publications

References 16 publications

Real time implementation of H∞ loop shaping robust PSS for multimachine power system using dSPACE

Real time implementation of H∞ loop shaping robust PSS for multimachine power system using dSPACE

Decentralized power system damping controller design using H<inf>∞</inf> loop-shaping technique

Bibliography of FACTS: 2008 Part I IEEE working group report

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H∞ Loop Shaping-based Robust Control Design of PSS and TCSC for Dynamic Stability Enhancement

Cited by 3 publications

References 16 publications

Real time implementation of H∞ loop shaping robust PSS for multimachine power system using dSPACE

Real time implementation of H∞ loop shaping robust PSS for multimachine power system using dSPACE

Decentralized power system damping controller design using H<inf>&#x221E;</inf> loop-shaping technique

Bibliography of FACTS: 2008 Part I IEEE working group report

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Product

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Decentralized power system damping controller design using H<inf>∞</inf> loop-shaping technique