云南电力技术
雲南電力技術
운남전력기술
YUNNAN ELECTRIC POWER
2014年
6期
26-30
,共5页
何向刚%蒋泽甫%唐学用
何嚮剛%蔣澤甫%唐學用
하향강%장택보%당학용
可靠性%边际容量%递增搜索法%随机网流法
可靠性%邊際容量%遞增搜索法%隨機網流法
가고성%변제용량%체증수색법%수궤망류법
reliability%marginal capacity%increased search method%probabilistic network-flow
基于随机网流模型的多域互联电力系统可靠性评估方法,以系统元件限制的最大网流模拟实际电力系统的潮流,能有效进行多域互联电力系统可靠性的评估,提高计算速度。然而,多域互联电力系统结构复杂、元件繁多,状态枚举困难,面临维数灾问题。本文以随机网流模型为基础,提出边际容量、递增搜索等概念,用于多域互联电力系统可靠性评估中。算例分析表明,改进方法极大地减少了枚举状态数,提高了可靠性评估效率;并验证了所提出的方法的有效性和正确性。
基于隨機網流模型的多域互聯電力繫統可靠性評估方法,以繫統元件限製的最大網流模擬實際電力繫統的潮流,能有效進行多域互聯電力繫統可靠性的評估,提高計算速度。然而,多域互聯電力繫統結構複雜、元件繁多,狀態枚舉睏難,麵臨維數災問題。本文以隨機網流模型為基礎,提齣邊際容量、遞增搜索等概唸,用于多域互聯電力繫統可靠性評估中。算例分析錶明,改進方法極大地減少瞭枚舉狀態數,提高瞭可靠性評估效率;併驗證瞭所提齣的方法的有效性和正確性。
기우수궤망류모형적다역호련전력계통가고성평고방법,이계통원건한제적최대망류모의실제전력계통적조류,능유효진행다역호련전력계통가고성적평고,제고계산속도。연이,다역호련전력계통결구복잡、원건번다,상태매거곤난,면림유수재문제。본문이수궤망류모형위기출,제출변제용량、체증수색등개념,용우다역호련전력계통가고성평고중。산례분석표명,개진방법겁대지감소료매거상태수,제고료가고성평고효솔;병험증료소제출적방법적유효성화정학성。
Probabilistic network-flow model is presented in evaluating reliability of multi-area interconnected power system.Com-pared with actual power flow, the presented model can solve the reliability evaluation of multi-area interconnected power system more effectively.To avoid the curse of dimensionality caused by the state-enumeration of multi-area interconnected power system with many elements, the conceptes of marginal capacity and incremental search are proposed to assess the reliability of multi-area interconnected power system based on the probabilistic network-flow model to reduce the enumerated state number.Practical results confirm the proposed method is valid in assessing overall reliability of multi-area interconnected power system.