1Bowerfind Jack, Sylvester, Campbell J. Application of solid-state ac motor starters in the pulp and paper industry[J]. IEEE Transactions on Industry Application, 1986, 22(1): 1011-1016.
2Blaabjerg F, Pedersen J K, Rise S et al. Can soft-starters help save energy[J]. IEEE IndustryApplication Magazine, 1997, 3(5): 56-66.
3Ginart A, Esteller R, Maduro A et al. High starting torque for AC SCR controller[J]. IEEE Transactions on Energy Conversion, 1999, 14(3):553-559.
4Cadirci I, Ermis M, Nalcaci E et al. A solid state direct-on line starter for medium voltage induction motors with minimized current and torque pulsations[J]. IEEE Transactions on Energy Conversion, 1999,14(3): 402-412.
5Takahashi N I, Akagi H. A new neutral-point-clamped PWM inverter[J]. IEEE-IAS, 1981, 17(5): 518-523.
6Calais M, Agelidis V G, Meinhardt M. Multilevel converters single-phase grid connected photovoltaic System[J]. Solar Energy,1999, 66(5): 325-335.