Publication Type:

Journal Article

Source:

Journal of Automation and Systems Engineering, Volume 4, Number 3, p.142–153 (2010)

Keywords:

Automatic generation control, Proportional plus Integral controller, Superconducting Magnetic Energy Storage System, Variable Structure System controller

Abstract:

This paper focuses on controlling the hydrothermal plant using Variable Structure System (VSS) controller and Superconducting Magnetic Energy Storage (SMES) unit. The Automatic Generation Control (AGC) of hydrothermal plants is conventionally done by Proportional-Integral (PI) controller, which yields desired response too. For, further improvement of transient and steady state response, the conventional PI controller is replaced by Variable Structure System (VSS) controller. Ziegler Nichols’ (ZN) method is used in tuning the gains of conventional PI controller and VSS controller. The system response in terms of transient and steady state is much improved while using VSS controller than conventional PI controller. The Superconducting Magnetic Energy Storage (SMES) unit being a frequency stabilizer which helps to damp out frequency oscillations much faster, is used along with the Variable Structure System (VSS) controller for controlling the hydrothermal power plant. The simulation response shows that the hydrothermal system with Variable Structure System (VSS) controller and Superconducting Magnetic Energy Storage (SMES) unit exhibits better frequency and tie line power performance.

Cite this Research Publication

Dr. Vijaya Chandrakala K. R. M., Dr. Balamurugan S., and Sankaranarayanan, K., “Automatic Generation Control for Hydrothermal Plant with Variable Structure System Controller and Superconducting Magnetic Energy Storage”, Journal of Automation and Systems Engineering, vol. 4, pp. 142–153, 2010.

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