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Abstract—A modern power grid needs to become smarter in
4 E/ ^$ n3 g1 v3 X- border to provide an affordable, reliable, and sustainable supply
6 Z1 p9 x0 m( m; T8 \1 C1 N/ `/ Mof electricity. For these reasons, considerable activity has been U2 [3 X) ]( h
carried out in the United States and Europe to formulate and
& [; P1 |0 ?$ ^" ~1 n% xpromote a vision for the development of future smart power grids.
) m( j) ^$ C( @- F3 E$ X$ AHowever, the majority of these activities emphasized only the
! n& K7 r4 {. H& X1 e# Ddistribution grid and demand side leaving the big picture of the8 E: w& O# M( q' \& k4 R7 B
transmission grid in the context of smart grids unclear. This paper
2 y. R; h/ i4 {: y& ]presents a unique vision for the future of smart transmission grids$ p8 n8 k0 O7 F \( C z% \+ P
in which their major features are identified. In this vision, each
" C9 q& `2 R5 ?# l/ p$ q1 F& Ssmart transmission grid is regarded as an integrated system that
. \9 E' S+ d% Y z6 pfunctionally consists of three interactive, smart components, i.e.,5 h( W0 X0 d | B
smart control centers, smart transmission networks, and smart
1 }0 H1 M8 y- u% Gsubstations. The features and functions of each of the three func-4 N" N' f" _) d) ?3 ?
tional components, as well as the enabling technologies to achieve1 i! \3 Z6 F' O- C
these features and functions, are discussed in detail in the paper.
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Author:0 k1 n7 \ O3 I- J* a: v5 q
Fangxing (Fran) Li (M’01-SM’05) received the Ph.D. degree from Virginia
+ e) s5 A5 `6 X: n/ v- z/ H" C, {7 hTech in 2001.
6 Y" v4 O) l! G. [' x# VHe was with ABB, Raleigh, NC, as a Senior and then a Principal Engineer for9 ?+ H3 i' U; b
four and one-half years. He has been an Assistant Professor at the University of
) ~6 x5 |4 Z% G ]8 WTennessee (UT), Knoxville, since August 2005. His research interests include5 c* q; y" I* j5 j$ }4 p; d$ t
energy market, reactive power, distributed energy and distribution systems, re-& |3 Z9 N; Y# b0 _$ L* ?! f% e1 z
liability, and computer applications.
& e7 f' v9 d/ k9 e4 [. n. O Y; VDr. Li is a Registered Professional Engineer in the State of North Carolina.
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