摘要
分布式发电的引入,不可避免地对配电网运行和安全产生很大影响,因此必须对含分布式发电的配电网潮流进行计算和调整。引入了基于参与因子调整的分布式松弛母线模型,应用牛顿拉夫逊法求取基于网损灵敏度的参与因子,通过参与因子计算变电站和各个分布式发电参与有功网损分配的贡献,从而形成含分布式发电的配电网潮流计算方法。该方法充分考虑了负荷分配,以及功率不平衡量由多个松弛节点分摊。将所提方法在多个测试系统进行了仿真计算,经与常规潮流算法比较可知,所提方法是有效的。
The introduction of distributed generation （DG） into distribution network will greatly impact on its operation and security inevitably, so the power flow in distribution network containing DG should be calculated and adjusted. In this paper, a power flow algorithm for adjusted distributed slack bus model based on Newton-Raphson method is researched; by means of participation factors, the contribution of substations and DGs to active power loss is calculated by participation factors and the power flow features of existing distribution network aider the DGs are grid-connected are analyzed. In the proposed method the load distribution is adequately considered and the imbalance power is apportion by distributed slack buses. Applying the proposed method to test power systems and comparing simulation results with calculation results of traditional power flow algorithms, it is shown that the proposed method is feasible and effective.
出处
《电网技术》
EI
CSCD
北大核心
2009年第18期139-143,共5页
Power System Technology
基金
国家自然科学基金资助项目(50707026)~~
关键词
分布式发电
潮流计算
松弛母线
参与因子
网损灵敏度
distributed generation
power flow calculation
distributed slack bus
participation factors
power losses sensitivity
