摘要
针对网架重构阶段网络结构不断变化的特点,深入研究机组启动与负荷恢复的交叉影响,综合考虑负荷恢复代价、负荷性质、负荷重要性及负荷恢复对后续网架重构的影响,提出一种针对网架重构阶段负荷恢复的优化方法。该方法采用分时步的恢复策略,根据前一时步系统的实际恢复情况,首先对待恢复负荷进行预选,再采用层次分析法确定各备选恢复负荷的权重,最后利用贪婪算法进行求解,得到当前时步恢复的负荷及线路。IEEE-30节点系统算例证明,对网架重构阶段的负荷恢复进行优化,可充分利用已并网机组提供的发电功率恢复尽可能多的重要负荷并保证网架重构的顺利进行。
Based on the characteristics that network structure changes constantly during network reconfiguration, the mutual infiuenee of units start-up and load restoration is intensively studied. An optimization method for load restoration during network reconfiguration is proposed by a comprehensive consideration of load recovery cost, load characteristics, load importance and the influence of the load restoration on the succeeding network reconstruction. The restoring process is carded out step by step based on a fixed time interval. In this method, first, the loads which satisfed restoration are selected according to the system＇s previous restoration state, then, their comprehensive weights are calculated by analytical hierarchy process method, finally, the loads restored in this time step are determined by using the greedy algorithm. The application results on the IEEE-30 bus system show that the loads which are more important and favorable to the succeeding network reconstruction can be effectively picked out for restoration by the proposed optimization method. This work is supported by Natural Science Foundation of Hebei Province （No. E2011502025）.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第17期26-32,共7页
Power System Protection and Control
基金
河北省自然科学基金项目资助(E2011502025)~~
关键词
黑启动恢复
网架重构
负荷恢复优化
层次分析法
贪婪算法
black-start restoration
network reconfiguration
load restoration optimization
analytical hierarchy process
greedy algorithms
