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Robust design of damping controller for power system using a combination of snake optimisation algorithm and optimal control theory

Author

Listed:
  • Niharika Agrawal
  • Faheem Ahmed Khan
  • Mamatha Gowda

Abstract

Low-frequency oscillations (LFO) are created in the power system due to various disturbances. The LFO if not controlled, grows and causes the system separation. There is a huge financial loss due to the interruption of the power supply caused by disturbances. With the increasing complexity of the modern power system, there is a need for the design of a more accurate and detailed modelling. An Advanced Heffron Phillips Model (AHPM) is developed with a higher order Synchronous Generator Model 1.1, based on ten K-Constants for stability improvement. This AHPM employs the combination of snake optimisation algorithm (SOA) and linear quadratic regulator (LQR) from optimal control theory. The highest damping ratio (99.98%) is obtained by AHPM in coordination with PSS, and TCSC based on SOA and LQR. For various parameters, the settling time ranges from 1.5 to 2.0 seconds. This AHPM is robust and capable of meeting the challenges of grid integration with renewables.

Suggested Citation

  • Niharika Agrawal & Faheem Ahmed Khan & Mamatha Gowda, 2024. "Robust design of damping controller for power system using a combination of snake optimisation algorithm and optimal control theory," International Journal of Energy Technology and Policy, Inderscience Enterprises Ltd, vol. 19(1/2), pages 171-215.
    • Handle: RePEc:ids:ijetpo:v:19:y:2024:i:1/2:p:171-215
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