Power generator mechanical faults effects on electric power quality

Griscenko, Marina; Elmanis-Helmanis, Rihards; Skopans, Ugis

doi:10.1109/pq.2014.6866799

Cited by 3 publications

(4 citation statements)

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“…The correlation between measured electromagnetic force, rotor air gap and vibration was observed as well for the particular hydro power generator unit [1].…”

Section: Introductionmentioning

confidence: 65%

“…Previous study [1] already discussed the effect, that in 90 MW mode voltage distortion is not present. However, hydro power generator rarely operates with 90 MW only.…”

Section: Resultsmentioning

confidence: 89%

“…The technique of obtaining Delta values of air gap for rotor was discussed in the previous study on power quality, and was based on measuring maximum value of measured air gap and average value of all air gap measurements [1]. Delta values are compared and plotted to illustrate air gap of the rotor.…”

Section: Methodsmentioning

confidence: 99%

“…Previous study on power quality [1] already showed that some distortion of voltage curve could be observed in no-load mode. Consequently, the extended research was required to identify whether distortion occurs in other modes used more frequently for generator operation.…”

Section: Introductionmentioning

confidence: 98%

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Study of generator modes effects on electric power quality and air gap

Elmanis-Helmanis

Griscenko

2014

2014 55th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)

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The study examines hydroelectric power generator characteristics, voltage quality, air gap and vibration, in different operational modes -no-load mode, 90, 45, 10 MW load, 90 MW load with −50 MVAr to 20 MVAr reactive power and synchronous compensator mode with 0 MW-20 MW active power and synchronous compensator mode with −10 MVAr to −60 MVAr reactive power.Developed framework for power quality and air gap measurements assessment of hydropower generator shows that correlation exists between voltage, air gap and vibration characteristics. Analysis and comparison of different operational modes are performed to identify, which modes are important during diagnostics of machine condition in hydroelectric generators.

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“…The correlation between measured electromagnetic force, rotor air gap and vibration was observed as well for the particular hydro power generator unit [1].…”

Section: Introductionmentioning

confidence: 65%

“…Previous study [1] already discussed the effect, that in 90 MW mode voltage distortion is not present. However, hydro power generator rarely operates with 90 MW only.…”

Section: Resultsmentioning

confidence: 89%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 2 more Smart Citations