Abstract—A modern power grid needs to become smarter in ) |( D" b' m4 t. ?order to provide an affordable, reliable, and sustainable supply + S( L6 F X( O* D5 V; d+ Mof electricity. For these reasons, considerable activity has been5 `1 s# N8 g7 w* Q
carried out in the United States and Europe to formulate and : ` h' W* |$ {% H0 Cpromote a vision for the development of future smart power grids.+ p& U o& b8 f. | W$ D+ I! |
However, the majority of these activities emphasized only the " ?4 L1 A( {# J: Odistribution grid and demand side leaving the big picture of the 0 ?5 i% d. P3 n4 ?9 ~transmission grid in the context of smart grids unclear. This paper+ [4 b' K5 ?7 R% M
presents a unique vision for the future of smart transmission grids% p( q! O$ R' f
in which their major features are identified. In this vision, each 8 \" r1 U4 z- ksmart transmission grid is regarded as an integrated system that , g" r+ Y9 S6 ^3 b6 g7 _functionally consists of three interactive, smart components, i.e., 6 O6 H& G% I' h e4 hsmart control centers, smart transmission networks, and smart ) T- I8 [* o2 Q6 j6 _substations. The features and functions of each of the three func-0 }3 X3 l" u3 ]9 m
tional components, as well as the enabling technologies to achieve 3 W e! X( H! p3 K+ }+ bthese features and functions, are discussed in detail in the paper.9 [ b0 p) n& [
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7 n- @8 L7 e0 U" l1 E0 F& EAuthor: $ l0 C$ m1 |5 F, Y$ Z8 [Fangxing (Fran) Li (M’01-SM’05) received the Ph.D. degree from Virginia ! ] U1 n9 {# }5 Z4 U9 ?, ~% h/ PTech in 2001. 6 {" U8 k3 ~7 s- {He was with ABB, Raleigh, NC, as a Senior and then a Principal Engineer for3 R& p: f" B$ A- y
four and one-half years. He has been an Assistant Professor at the University of [. K' t5 \. w/ G" x+ n
Tennessee (UT), Knoxville, since August 2005. His research interests include ; [) N4 N8 w% B7 Menergy market, reactive power, distributed energy and distribution systems, re-, [" b1 R9 r! H% P
liability, and computer applications., P2 u; `" w9 f5 |; r
Dr. Li is a Registered Professional Engineer in the State of North Carolina.' P# V! L$ W- W T- F& W, h
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