Short-term power flow analysis has a significant influence on day-ahead generation schedule. This paper proposes a time series model and prediction error distribution model of wind power output. With the consideration of wind speed and wind power output forecast error's correlation, the probabilistic distributions of transmission line flows during tomorrow's 96 time intervals are obtained using cumulants combined Gram-Charlier expansion method. The probability density function and cumulative distribution function of transmission lines on each time interval could provide scheduling planners with more accurate and comprehensive information. Simulation in IEEE 39-bus system demonstrates effectiveness of the proposed model and algorithm.
The divergentr eactivity of (diacyloxyiodo)arenes in the palladium-catalyzed allylic CÀHa cyloxylation and vinylic arylation reactions of variousa lkenes has been established. These reactions proceed under simple, mild, and ligand-free conditions to give CÀHa cyloxylation and vinylic arylation products in moderate to good yields with high regioselectivities. This reactionc an employ ab road scope of substrates and has good functional group compatibility. This methodw ill greatlyb roaden the applications for (diacyloxyiodo)arenes in organic synthesis.
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