Exponential PID controller for effective load frequency regulation of electric power systems

Area of Science:

• Electrical Engineering
• Control Systems
• Power Systems

Background:

• Load frequency regulation (LFR) is critical for stable and reliable electrical power supply.
• Increasing power system complexity and demand necessitate advanced control strategies.
• Existing controllers often lack practical ease of implementation and optimal performance.

Purpose of the Study:

• To introduce a novel exponential PID (EXP-PID) controller for improved LFR performance.
• To enhance controller design simplicity and practical applicability.
• To validate the effectiveness of the proposed controller in diverse power system configurations.

Main Methods:

• Development of an exponential PID (EXP-PID) controller featuring nonlinear exponential functions.
• Optimization of EXP-PID controller parameters using a corrected snake optimizer (co-SO).
• Testing and validation on various single- and multi-area, single- and multi-source power system test benches.

Main Results:

• The co-SO tuned EXP-PID controller demonstrated superior performance in mitigating frequency and tie-line power deviations.
• The proposed controller effectively addressed LFR challenges in complex power system scenarios.
• Comparative analysis confirmed the efficacy of the EXP-PID controller against state-of-the-art methods.

Conclusions:

• The EXP-PID controller offers a simple yet effective solution for load frequency regulation.
• The co-SO optimization technique provides robust parameter tuning for the proposed controller.
• The developed control scheme presents a credible and promising approach for modern power systems.