Effect of Geothermal and Other Renewables on AGC of an Interconnected Thermal System

  • Washima TasninEmail author
  • Lalit Chandra Saikia
  • Debdeep Saha
  • Rumi Rajbongshi
  • Arindita Saha
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 757)


An effort of incorporating geothermal plant (GTP) in automatic generation control and analysing its impact along with other renewables on conventional thermal system is focused in this work. Suitable generation rate constraint is considered for thermal units. Fractional-order (FO) Proportional Integral—FO Proportional Derivative (FOPI-FOPD) is used as a secondary controller implementing the innovative concept of FO cascade controller. Dynamic performance of FOPI-FOPD is compared with the normally used traditional controllers and its parameters are optimized using the Sine Cosine Algorithm. The superiority of FOPI-FOPD is clearly revealed in the analysis over others. Effect of integrating GTP and other renewables is also highlighted on the thermal system. The system is studied considering 1% step load perturbation in area1.


Load frequency control Fractional-order cascade controller Geothermal power plant Sine cosine algorithm 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Washima Tasnin
    • 1
    Email author
  • Lalit Chandra Saikia
    • 1
  • Debdeep Saha
    • 1
  • Rumi Rajbongshi
    • 1
  • Arindita Saha
    • 1
  1. 1.Electrical Engineering DepartmentNational Institute of Technology SilcharSilcharIndia

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