Variable Frequency Drives-Induced Torsional Stresses in Pumped Hydropower Storage Applications
Pascal M. Lingom,
Joseph Song-Manguelle,
Simon Pierre Betoka-Onyama
et al.
Abstract:Despite consistent maintenance and monitoring equipment installed in pumped storage hydropower (PSH) facilities, many shafts and electrical component failures are reported, possibly resulting from undetected sources. These sources include undetectable vibrations or, in certain conditions, highfrequency mechanical or electrical harmonics. They may induce premature material fatigue and aging, leading to accelerated wear and premature system failure. This paper presents a direct method for plotting Campbell diagr… Show more
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