文章摘要
陈艳波,张智,徐井强,等.广义快速分解潮流计算方法[J].电力系统自动化,2019,43(6):85-91. DOI: 10.7500/AEPS20180515009.
CHEN Yanbo,ZHANG Zhi,XU Jingqiang, et al.Generalized Fast Decoupled Load Flow Algorithm[J].Automation of Electric Power Systems,2019,43(6):85-91. DOI: 10.7500/AEPS20180515009.
广义快速分解潮流计算方法
Generalized Fast Decoupled Load Flow Algorithm
DOI:10.7500/AEPS20180515009
关键词: 快速分解潮流算法  牛顿-拉夫逊法  配电网  高阻抗比  潮流算法
KeyWords: fast decoupled load flow algorithm  Newton-Raphson method  distribution network  high resistance-to-reactance ratio  load flow algorithm
上网日期:2019-01-02
基金项目:国家自然科学基金资助项目(51777067);新能源电力系统国家重点实验室开放课题研究项目(LAPS18003)
作者单位E-mail
陈艳波 华北电力大学电气与电子工程学院, 新能源电力系统国家重点实验室, 北京市 102206 yanbochen2008@sina.com 
张智 华北电力大学电气与电子工程学院, 新能源电力系统国家重点实验室, 北京市 102206  
徐井强 四川能投高县电力有限公司, 四川省宜宾市 645150  
周勐 中国电力科学研究院有限公司, 北京市 100192  
余锐 国家电网公司西南分部, 四川省成都市 600000  
凌亮 国家电网公司西南分部, 四川省成都市 600000  
摘要:
      快速分解潮流(FDLF)算法在当今的国内外电网调度控制中心和规划部门得到了广泛应用。在大部分情况下FDLF算法具有很高的计算效率,但对于高阻抗比的输电网和配电网,FDLF法的数学基础不再成立,其收敛性和计算效率均变差,因而FDLF无法适用于高阻抗比的输电网和配电网。针对以上问题,文中通过对节点注入有功功率/无功功率进行变换,进而得到类有功注入功率/类无功注入功率,两者具有更好的解耦特性,且这种解耦特性与阻抗比的值无关;在此基础上提出一种广义快速分解潮流(GFDLF)算法。GFDLF算法只需基于一个前提条件,而传统的FDLF算法则需要3个前提条件,因此GFDLF算法对输电网和配电网(包括高阻抗比网络)均具有良好的适应性。算例仿真验证了所提方法具有良好的收敛性和较高的计算效率。
Abstract:
      Fast decoupled load flow(FDLF)algorithm has been widely used in the domestic and international power dispatch and control center and planning department. The FDLF algorithm usually has very high computational efficiency. But for the transmission networks and distribution networks with high resistance-to-reactance ratios, the mathematical basis of the FDLF algorithm is no longer satisfied, and its convergence and computational efficiency are poor. So the FDLF algorithm cannot be applied to the transmission networks and distribution networks with high resistance-to-reactance ratios. The above problem is addressed by transforming active/reactive power at buses so that they can be classified as quasi active/reactive power at buses, which have better decoupling characteristics. And this decoupling property is independent of the value of resistance-to-reactance ratio. On this basis, a generalized fast decoupled load flow(GFDLF)algorithm is proposed. The GFDLF algorithm is based on only one assumption, rather than three assumptions used in the conventional FDLF algorithm. As a result, the GFDLF algorithm has good adaptability to both power transmission network and distribution network(including the network with high resistance-to-reactance ratio). Simulation results show the effectiveness and efficiency of the proposed method.
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