Transformer Model Considering Residual Flux Effect
WAN Kai, LIU Hui-jin(Wuhan University, Wuhan 430072, China)
The smooth and continuous functions are used to simulate the non-linear magnetizationcharacteristics of transformer. The single-phase transformer model considering residual flux, magnet-ie saturation and hysteresis is introduced. The non-linear differential equation for transience in ex-eitation circuit is derived and is emulated with the program EMTP. The model and its algorithmare verified with experimental results.