Application of the REI equivalent for operations planning analysis of interchange schedules

Review of reduction techniques in the determination of composite system adequacy equivalents

“…• From time or calculation saving view point, it is less efficient to determine an AC equivalent network and hence most of the proposed methods are based on DC load-flow equations [11,21,38]. • It is an advantage in developing a probabilistic equivalent model, to observe the following points [3][4][5][6][9][10][11][12][13]18,22,24,37,39,62]: -Keeping the identity or effects of important or determinant elements. -Possibility of including generation and load changes without wide variation in the model parameters.…”

“…• Due to the existence of at least one generation and one load node in the REI network, the simulation of generation and load variation in the EA is more straightforward [2][3][4]6,8,9,13]. • Admittances of fictitious branches in a REI network may be more unusual in comparison to these admittances in a Ward equivalent [2,4].…”

“…[13] applies an AC REI network of the EA for analysis of power transactions between an EA and a SA and system security. Two REI nodes are introduced for the generators and loads in the EA.…”

“…3 shows a typical REI conversion process in which m generators are transformed to a single equivalent REI generation node. As stated in [2][3][4]6,7,9,10,12,13], the determination of a REI includes three stages. In the first stage, REI node R and common node 0 are established.…”

Application of dynamic REI reduction

“…It was founded 1975 by Dimo [8], has been documented The research leading to these results has received funding from the EU FP7 program under grant agreement n° PIAP-GA-2009-251304-REAL- SMART) in detail in several papers ( [9], [10] ) and therefore will be not repeated precisely in here.…”