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A load frequency control strategy has been developed to manage both single and two-area systems, taking into account communication delay. In this approach, a straightforward Proportional Integral Derivative (PID) controller is crafted using a Direct Synthesis (DS) method for achieving a specific desired closed-loop transfer function. This transfer function includes a free parameter, λ, which offers flexibility in shaping the closed-loop response. By approximating the DS controller with a PID controller in low-frequency response range, the controller parameters are derived. The key advantage of this method lies in its ability to efficiently reject load disturbances by aligning the closed-loop transfer function as closely as possible to the desired one, using the free parameter λ. The effectiveness of this approach is demonstrated through comparisons with existing methods in the literature. Additionally, PID controllers are derived from Generalized Active Disturbance Rejection Controller (GADRC) and observers using a low-frequency matching technique. This further enhances the adaptability and robustness of the control system.

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Direct Synthesis-based Load Frequency Controller Design for Single-Area and Multi-Area Power System with Communication Delay

  • 会议论文

  • 发表日期：

    2025年

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  • Priya Kumari,
  • Somnath Pan

摘要

A load frequency control strategy has been developed to manage both single and two-area systems, taking into account communication delay. In this approach, a straightforward Proportional Integral Derivative (PID) controller is crafted using a Direct Synthesis (DS) method for achieving a specific desired closed-loop transfer function. This transfer function includes a free parameter, λ, which offers flexibility in shaping the closed-loop response. By approximating the DS controller with a PID controller in low-frequency response range, the controller parameters are derived. The key advantage of this method lies in its ability to efficiently reject load disturbances by aligning the closed-loop transfer function as closely as possible to the desired one, using the free parameter λ. The effectiveness of this approach is demonstrated through comparisons with existing methods in the literature. Additionally, PID controllers are derived from Generalized Active Disturbance Rejection Controller (GADRC) and observers using a low-frequency matching technique. This further enhances the adaptability and robustness of the control system.