Some Features of Computer Simulation Transitional Processes at Switching-off Unloaded Transformers

Authors : Tahir LAZIMOV, Asif SADIGOV, Shefiga MAMMADLY

Pages : 5-8

View : 11 | Download : 6

Publication Date : 2016-02-28

Article Type : Research Paper

Abstract :Stability of computer simulation transitional processes at switching-off unloaded power transformers is considered in the article. Solvability and stability of solutions of this problem had been tested by the four stiff ordinary differential equations’ solvers in the wide ranges of initial step sizes and relative tolerances. On the base of analyze the calculated values of voltages across the terminals of switched-off transformer and recovery voltage across the poles of circuit-breaker there were made some conclusions and stated the features of the simulation process. Results at use both fast and robust algorithms of the ode solvers were analyzed and compared in the article.
Keywords : fast and robust algorithms, initial step size, ordinary differential equations solvers, relative tolerance, stability of solutions