期刊
IEEE TRANSACTIONS ON POWER SYSTEMS
卷 19, 期 1, 页码 676-682出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2003.818743
关键词
cumulants; Gram-Charlier expansion; open access transmission and deregulated power market; power system; probabilistic load flow; probability distribution function; transmission planning
Open access transmission has created a deregulated power market and brought new challenges to system planning. This paper proposes a new method to compute a probabilistic load flow in extensive power systems for the purpose of using it as a quick screening tool to determine the major investment on improving transmission system inadequacy. This innovative method combines the concept of Cumulants and Gram-Charlier expansion theory to obtain probabilistic distribution functions of transmission line flows. It has significantly reduced the computational time while maintaining a high degree of accuracy. This enables probabilistic analysis of power flow problems to be treated objectively and allows quantitative assessment of system reliability.
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