摘要
针对配电网的辐射状和弱环网以及三相不平衡的特点 ,在前代回推的基础上 ,提出了一种利用多端口混合补偿技术的三相潮流和故障计算的统一分析方法。提出了对各种故障具有统一形式的故障端口补偿电路 ,并且该方法在电网的正常和故障两种情况下具有统一的计算公式和迭代步骤。因而 ,故障计算与普通潮流计算具有相同的收敛性。并且 ,计算模型中可以考虑详细的负荷模型 ,提高了故障电流计算值的精确度。数值算例表明该方法具有很高的效率和计算精度 ,完全可以应用于实时控制系统。
This paper presents a uniform approach for power flow and fault analysis of asymmetrical three phase distribution system. Based on the forward and backward sweep method, a polished hybrid compensation approach is developed. A uniform compensation circuit model is also given for all kind of faults. The proposed algorithm can be applied in both normal and short circuit conditions, and their computation formulas and iteration steps are completely same. The detailed load model is also accomplished in this method. The paper also includes a test results from the application of a computer program developed based on the proposed methods.
出处
《电力系统自动化》
EI
CSCD
北大核心
2002年第20期50-54,共5页
Automation of Electric Power Systems
