5Enjeti P N K, Piteli J. tronic transformers for Analysis and design of elec- electric power distribution system[J]. IEEE Trans. on Power Electronics,1999,14(6):1 133-1 141.
6Manjrekar M D, Venkataramanang K R. Power elec- tronic transformer for utility application[C]// Con- ference Record of the 2000 IEEE-IAS Annual Meet- ing, 2000:2 496-2 502.
7Wang D, Mao C X, Lu J M. Coordinated control of EPT and generator excitation system for multidouble- circuit transmission-lines system[J]. IEEE Trans. on Power Delivery,2008,23 (1) : 371-379.
8Wang D,Mao C X,Lu J M,et al. Theory and applica- tion ofdistribution electric power transformer[J]. E- lectric Power SystemsResearch, 2007,77 (3-4) : 219- 226.
9Fan S, Mao C X, Chen L N. Optimal coordinated PET and generator excitation control for power sys- tems [ J ]. International Journal of Electrical Power~Energy Systems, 2006,28(3) : 158-165.
10Sun X, Lee Y S, Xu D H. Modeling, analysis, and implementation of parallel multi-Inverter systems with instantaneous average-current-sharing scheme [J]. IEEE Trans. on Power Electronics, 2003, 18 (3) :844-856.
