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A nonideal macromodel of thyristor for transient analysis in power electronic systems

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3 Author(s)
Gracia, F.J. ; Centro de Estudio e Investigaciones Tecnicas de Guipuzcoa, San Sebastian, Spain ; Arizti, F. ; Aranceta, F.J.

A nonideal SCR (silicon controlled rectifier) macromodel for analog power circuit simulation using SPICE has been developed. This model adds important second-order effects such as overvoltage and critical dVAk/dt switch-on, turn-on, and tq times, threshold gate trigger voltage, and nonlinear on-state characteristics. The parameters of any specific SCR can be easily obtained from its data sheet specifications. Any kind of thyristor, from high power up to fast turn-off, can be modeled with only 10 well-defined parameters. Electronic systems with electrical transients can be successfully simulated. Good agreement between manufacturer data sheet specifications and simulated results has been observed for all the thyristors considered

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Industrial Electronics, IEEE Transactions on  (Volume:37 ,  Issue: 6 )