Harmonic Source Modeling of AC Electric Arc Furnace Based on Mechanism-data Serial Drive

The paper proposed a harmonic source model for AC electric arc furnaces (EAF) based on mechanism-data serial drive. Firstly, a steady-state model of EAF based on energy empirical formulas was established, and an asymmetric nonlinear resistance Chua's circuit was used as a modulation signal to simulate the chaotic mechanism inside the EAF, thus establishing a practical simulation model of the EAF. Based on measured data, the empirical parameters of the simulation model can be obtained, which in turn a large amount of harmonic simulation data can be acquired. Finally, an EAF harmonic source model was established by mechanism-data serial drive. The results show that the harmonic source model based on mechanism-data serial drive has good accuracy, which can provide reference and foundation for studying the harmonic emission level of AC electric arc furnaces.