摘要
随着电网管制的放松与大互联系统的持续发展,关于高效实用的跨区域可用传输能力(ATC)计算方法的研究十分重要。现有的ATC计算方法面对跨区域ATC计算,存在海量信息汇集困难、互联系统计算规模庞大、计算耗时等问题。文中提出了一种基于Kron简化的ATC计算方法,通过系统分解、区域等效、数据交换和拓扑校正等4个步骤,实现了跨区域ATC的分布式计算,避免了大规模运行数据的集中处理,分摊了跨区域ATC的运算压力;同时利用改进型灵敏度分析法,在保证ATC在线计算时效性的前提下提高了计算精度。最后,采用IEEE 118节点算例验证了新算法的有效性。
With the deregulation of electric power market and the growing size of large inter-connected power systems,the need of performing fast online multi-area available transfer capability （ATC） evaluation has emerged.This paper is concerned with a multi-area ATC evaluation method based on Kron reduction and operating in four steps,namely,system decomposition,regional equivalence,data exchange and topology update.The implementation of system decomposition enables minimum exchange of information among different control areas and the central coordinator,and the massive calculation pressure of multi-area ATC is shared.An enhanced DC-ATC model is adopted to boost speed while keeping the error under control.The method is validated through an IEEE 118-bus test case.
出处
《电力系统自动化》
EI
CSCD
北大核心
2013年第18期68-75,共8页
Automation of Electric Power Systems
基金
上海市优秀学术带头人计划资助项目(12XD1402900)~~
关键词
可用传输能力
分布式计算
灵敏度分析
Kron简化
多区域系统
available transfer capability （ATC）
distributed computation
sensitivity analysis
Kron reduction
multi-area system
