Design of Intelligent Monitoring System in Galloping Power Transmission Line.

Area of Science:

• Electrical Engineering
• Mechanical Engineering
• Structural Engineering

Background:

• Transmission line galloping causes frequent accidents, necessitating effective monitoring solutions.
• Existing monitoring systems face installation challenges and data accuracy issues.
• Accurate measurement of galloping displacement and trajectory is crucial for preventing failures.

Purpose of the Study:

• To develop a novel installation technique for galloping monitoring terminal structures.
• To improve the accuracy of displacement measurement by addressing integration errors.
• To validate the performance of the developed monitoring system through simulation and experimental testing.

Main Methods:

• A new installation technique considering structural design and transmission line impact was developed.
• Kalman and Mahony complementary filtering were combined to address wire twisting during galloping.
• A hybrid integration approach incorporating least-squares and adaptive smoothing was used to mitigate trend term errors.

Main Results:

• The developed monitoring terminal's structural design was simulated and evaluated.
• Experimental assessment on a galloping standard test bench showed measured amplitude within 10% of the standard value.
• The measured galloping trajectory closely matched the test bench trajectory, confirming system reliability.

Conclusions:

• The new installation technique and advanced filtering methods effectively address challenges in monitoring transmission line galloping.
• The developed system meets engineering design criteria for accurate amplitude and trajectory measurement.
• This technology is critical for enhancing user-end monitoring and preventing transmission line galloping accidents.