摘要
电网互联而管理体制的分层分区对互联电网分布式潮流计算提出了实际需求。文中提出一种基于子网边界节点等值注入功率的异步迭代分布式潮流算法。不同于Ward等值模型,提出仅保留区域联络线的子网的简化外网模型,避免了计算前的网络化简等值工作,减轻了协调层的参与程度和计算量,具有更好的分区独立性。采用异步迭代模式,通过交换内外边界节点的电压来更新外边界节点等值注入功率。对多个IEEE标准算例进行测试,并与其他方法进行比较,结果表明,所述模型和方法是有效的,适合在线应用。
The distributed power system analysis becomes more and more important since the power grid is interconnected but its operation and control is decentralized. A novel asynchronous iterative distributed power flow algorithm based on the boundary bus injection power is proposed. Different with Ward equivalent model, a reduced network equivalent model is used. Therefore the process of network reduction and equivalence are avoided and the dependence on the coordination layer is reduced. The asynchronous iteration mode is used and the boundary bus injection power is updated by exchanging and combining the voltage phasors of the boundary buses. The numerical results on IEEE 9-bus, IEEE 14-bus, IEEE 39-bus and IEEE 118-bus test systems show that the proposed method is effective, well-convergent and suitable for on-line application.
出处
《电力系统自动化》
EI
CSCD
北大核心
2010年第18期11-15,共5页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(50607003)
"十一五"国家科技支撑计划重大项目(2008BAA13B06)~~
关键词
分布式潮流计算
异步迭代
边界等值注入功率
动态潮流
外网模型
distributed power flow computation
asynchronous iteration
boundary equivalent injection power
dynamic power flow
equivalent network model
