适应分布式电源的输配电网协调潮流算法  

A Coordination Power Flow Algorithm for Power Transmission-Distribution Grid Accommodate Distributed Generations

作　　者：郭志红 韩学山[2] 李文博 杨思 

机构地区：[1]国网山东省电力公司电力科学研究院,山东济南250002 [2]电网智能化调度与控制教育部重点实验室(山东大学),山东济南250061 [3]国网山东省电力公司经济技术研究院,山东济南250001

出　　处：《山东电力技术》2014年第1期1-6,共6页Shandong Electric Power

基　　金：国家自然科学基金项目(50077006);山东无功电压现状分析与优化研究项目共同资助

摘　　要：针对未来分布式电源逐渐增多的背景,输、配电网间潮流耦合关系将趋于复杂化,必须将输电网、配电网潮流统一进行分析。对此,建立了以输电网与配电网边界节点电压为协调变量的全局电网分解协调计算方法,其协调量来自电压无功灵敏度,分解协调的信息就地采集,易于实施。通过算例验证表明,该方法不但能适应当前电网潮流的统一计算,而且对于分布式发电占相当比例的未来电网同样具有很好的适应性。In allusion to the tendency of gradually increasing of distributed power supply in the future, the coupling between power transmission grid and power distribution grid will become more and more complex, and the power flow of the two should be analyzed uniformly. To deal with that problem,a decomposition-coordination calculation method is proposed,in which the voltage of the boundary nodes between power transmission grid and power distribution grid is used as the coordinating variable and the sensitivity of bus voltage to reactive power is also considered. The information needed for the coordination method can be obtained locally,which makes that the whole algorithm can be implemented easily. Simulation resuhs show that the proposed method can not only be applied to the unified power flow calculation for the current power grid but also for the that future power grid in which distributed generation occupies a considerable proportion.

关 键 词：电力系统 潮流计算 全局电网 分解协调 

分 类 号：TM71[电气工程—电力系统及自动化]