Research and Solutions to Minimize Frontal Area Overheating of Hydro Generator Stator with Vertical Axis
نویسندگان
چکیده
About ten hydroelectric power plants realized from 1970 to 1990 in Romania are confronted with stator overheating. The developed mathematical model analyzes the voltage stability based on modal analysis of Jacobian matrix, identifying hazardous modes variation between and flow rate, correlated characteristics analyzed generators their response these variations. Vulnerable elements system for inductive capacitive operation identified. In conditions, hydro cannot attend secondary control, not even a frequency dependency control. elaborated was tested at Gilceag, Mariselu, Susag similar functioning conditions. necessary conditions ventilation hydrodynamic parameters during were established. theoretical an experimental method applied separately thermal Some results obtained measurements illustrated results. prevent onset instability drops accelerated Finally, some solutions minimize stators overheating local recommended.
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ژورنال
عنوان ژورنال: Energies
سال: 2021
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en14051243