THERMOMECHANICAL PARAMETERS OF STATOR WINDING INSULATION OF A TURBOGENERATOR WITH CONTROLLABLE COOLING (74-77)

Архив в PDF формате
Дата публикации статьи в журнале: 2020/02/17
Название журнала: Восточно Европейский Научный Журнал, Выпуск: 53, Том: 3, Страницы в выпуске: 74-77
Автор: Kuchynskyi K.A.
, Institute of Electrodynamics, NAS of Ukraine , doctor of sciences (engineering)
Автор: Kramarskyi V.A.
, Institute of Electrodynamics, NAS of Ukraine , candidate of sciences (engineering)
Автор: Hvalin D.I.
, Institute of Electrodynamics, NAS of Ukraine ,
Анотация: A method of calculation the thermomechanical parameters of stator winding high-voltage insulation for the operating conditions of a powerful generator using the numerical finite element method is developed. This method allows timely to give a warning the thermomechanical stress inadmissible level for necessary decisions on the prevention of severe accidents. Implementation of a method requires the least costs and can be used for generators of any type. As an example, the distribution of thermomechanicals strain and stress in winding bar insulation of 800 MW turbogenerator with a load change and cooling control by a numerical method is calculated. The winding bar displacement relative to the stator core end packet are evaluated.
Ключевые слова: powerful turbogenerator   end zone   stator core   stator winding frontal part   stator winding insulation   thermomechanical stress  
Данные для цитирования: Kuchynskyi K.A., Kramarskyi V.A. , Hvalin D.I. . THERMOMECHANICAL PARAMETERS OF STATOR WINDING INSULATION OF A TURBOGENERATOR WITH CONTROLLABLE COOLING (74-77). Восточно Европейский Научный Журнал. Технические науки. 2020/02/17; 53(3):74-77.

Список литературы: 1. Glebov I.A., Danilevich Ya.B. The scientific fundamentals of turbogenerators design. Leningrad: Nauka, 1986. 184 p. (Rus.) 2. Kramarskyi V.A. Mathematical simulation of controllable cooling system for a turbogenerator stator winding. Pratsi Instytutu elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy. 2006. № 3(15). P. 60 – 64. (Ukr.) 3. Kulakovskyi V.B. Insulation work in generators. Beginning and methods of detect defects. Moskva: Energoizdat, 1981. 256 p. (Rus.) 4. Segerlind L. Application of the finite element method. Moskva: Mir, 1979. 392 p. (Rus.) 5. Schastlivyi G.G., Mezhennyi Yu.Ya. et al. Cooling control of a generator with full water cooling. Prepr. № 390. Kiev: Instytut elektrodynamiky AN USSR, 1984. 37 p. (Rus.) 6. Schastlivyi G.G., Fedorenko G.M. et al. The numerical analyze of heat condition of a 1000 MW turbogenerator stator winding for control and diagnostics. Prepr. № 812. Kiev: Instytut elektrodynamiky AN USSR, 1998. 24 p. (Rus.) 7. Schastlivyi G.G., Fedorenko G.M., Vygovskyi V.I. Turbo- and hydrogenerators at the variable loading graphics. Kiev: Naukova dumka, 1985. 208 p. (Rus.)