This study, "Investigation of Lateral Vibrations in Turbine-Generator Unit 5 of the Inga 2 Hydroelectric Power Plant," examines the lateral vibrations affecting the operational efficiency of the Inga 2 facility in the Democratic Republic of the Congo. Hydropower systems depend on stable turbine-generator units to maintain optimal power output, but excessive vibrations can disrupt performance and lead to costly damage.
The research involved a thorough analysis of Unit 5, a turbine-generator operating near its maximum capacity of 162 MW. Researchers used twelve proximity and eddy-current probes to measure lateral displacements at various points along the turbine’s shaft. Data collected through Dasylab and R software revealed that the vibration amplitudes at the guide bearings and rotor exceeded international standards, indicating potential issues with alignment and wear.
These excessive vibrations can be attributed to several factors, including rotor mass imbalance and shaft eccentricity. Such irregularities compromise efficiency, increase mechanical wear, and can even result in system failure if unaddressed. The study emphasizes the importance of compliance with vibration standards to ensure durability and safety in hydropower systems.
In light of these findings, the study recommends realigning the unit and conducting comprehensive maintenance checks to restore stability and prevent further issues. This case study highlights the critical role of vibration analysis in hydropower plants and the need for ongoing monitoring to support sustainable energy production.
For more in-depth findings,
full study: https://www.igminresearch.com/articles/html/igmin173
DOI Link: 10.61927/igmin173
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