基于注入电流不平衡量的配电网改进潮流算法  

Improved power flow calculation of distribution network based on injection current imbalance

作　　者：祝洪博[1] 刘新伟[1] 邵萌萌[1] 贾建夫 杨亮 

机构地区：[1]东北电力大学,吉林省吉林市132012 [2]吉林省电力公司培训中心,吉林长春130022

出　　处：《电工电能新技术》2010年第3期22-25,共4页Advanced Technology of Electrical Engineering and Energy

摘　　要：本文在节点注入电流模型配电网潮流计算的基础上,采用了基于注入电流的不平衡量,对算法进行了改进和简化,将Jacobian矩阵作为一个固定矩阵,从而使计算量大大减少,提高了计算速度;通过引入最优乘子,从算法上保证了潮流计算的不发散,有效地解决了潮流计算对初值的敏感性以及一些病态系统的潮流计算问题。用30节点、141节点配电网算例和几种典型的病态系统的计算验证了算法的有效性和可行性。Based on the power flow calculation of distribution network of the node current-injection model, the injection current imbalance is adopted to improve and simplify the algorithm, to make Jacobian matrix a fixed matrix, and computation is greatly reduced and the computing speed is improved. An optimal factor is introduced to ensure the convergence of the computing process, and the sensitivity of the initial value about power flow calculation and some ill-conditioned systems problems are also resolved effectively. Using the distribution network of 30-node, 141- node and several typical examples of ill-conditioned systems verify the effectiveness and feasibility of the method.

关 键 词：配电网 潮流计算 最优乘子 病态 

分 类 号：TM744[电气工程—电力系统及自动化]