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Stability Analysis of a Multi-area Renewable System and Frequency Control with Improved Chaotic Harris Hawk Optimization algorithm

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ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2024年第5期49卷 6531-6550页

作者： Pati, Subhranshu Sekhar Subudhi, Umamani Int Inst Informat Technol Dept Elect Engn Bhubaneswar 751003 India

Smart grids are the electrical grid with intelligent communication systems comprising conventional- and renewable-based power generation units along with storage systems that can monitor the power flow from generation to consumption and manage power flow to match the generation. This paper studies the frequency control of multi-area systems integrated with traditional and renewable power plants taking reliability and sustainability into account. Several nonlinearities like boiler dynamics and generation rate constant are also reflected in the simulation model. Further, a delay is introduced in the plant and controller formulation phase. To maintain stability, fractional calculus-based Proportional-Integral-derivative controller is formulated. The gain parameters of the fractional controller are optimized using the recent optimization algorithm. Furthermore, the chaotic-based function is also included in the existing Harris hawk optimizer to improve the optimizer's effectiveness. System stability is established with the fractional controller through the Bode plot and eigenvector analysis. Additionally, the system response is evaluated with the application of 2% step loading and time-varying random loading. The system's response through the suggested controller is verified using MATLAB/SIMULINK environment with various widely used controllers, and significant performance enhancement of peak overshoot, undershoot, and settling time are also observed.

关键词： Stability analysis Load frequency control Renewable source HHO algorithm ichho algorithm FOPID controller

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