4Arrillaga J, Medina A, Lisboa M L V, et al. The harmonic domain : a frame of reference for power System harmonic analysis[J]. IEEE Trans Power Syst, 1995,10( 1 ) :433-440.
5Task Force on Harmonics Modeling and Simulation. Modeling and simulation of the propagation of harmonics in electric power networks, Part Ⅰ: Concepts models, and simulation techniques[J]. IEEE Trans Power Delivery, 1996,11 (1): 452-456.