摘要
合理的网络重构策略对于大停电后的系统恢复具有重要意义。首先,研究了电力系统网络特性及线路投运失败可能造成的影响,提出了线路桥接功率、线路连接度和线路承重度这3个线路重要度评价指标,并在此基础上提出了一种综合评价线路重要度的方法。之后,将解释结构建模方法引入大停电后的网络重构问题之中;以发电机组的快速、安全恢复为基础,提出了机组恢复效益指标,以最大化恢复效益为目标选择恢复机组,并综合考虑了恢复机组的发电容量及线路重要性因素。所提出的方法可同时确定恢复机组及其恢复路径,使得优化机组恢复顺序和优化机组恢复路径这2个问题得到了有机的统一优化。最后,以新英格兰10机39节点系统为例说明了所提出的模型和方法的基本特征。
Rational planning of the network reconfiguration procedure is of great importance for restoring a power system with a complete blackout. The network characteristics of a power system and the impact caused by the failure of reconnecting a transmission line are addressed first, and three indices for evaluating the importance of each line are presented, including the bridging power of the line, the line connectivity, and the power-bearing degree of the line. A new method is next presented to comprehensively evaluate the importance of each line. Then, the interpretative structural modeling （ISM） is employed to direct the network reconfiguration after a complete blackout. With the quick and secure restoration of each generating unit as the premise, the restoration benefit is defined and its maximization employed as the objective to select the generating unit to be restored, with the restored generation capacity and the importance of each relevant line comprehensively considered. By applying the developed optimization model, the restoration sequence of the generating units and their restoration paths can be optimized simultaneously. Finally, a New England 10-unit 39-bus power system is employed to demonstrate the essential characteristics of the method developed.
出处
《电力系统自动化》
EI
CSCD
北大核心
2013年第21期80-87,共8页
Automation of Electric Power Systems
基金
国家高技术研究发展计划(863计划)资助项目(2011AA05A105)
国家自然科学基金资助项目(51007080)
中央高校基本科研业务费专项资金资助项目(2012QNA4011)
南方电网公司重点科技项目(K201029
K-ZB2011-012)~~
关键词
网络重构
线路重要度
解释结构建模方法
恢复效益
network reconfiguration
line importance
interpretative structural modeling method
restoration benefit
