电网技术2012，Vol.36Issue(12)：146-152,7.
计及负荷不确定性的电网参数分析和优化
Analysis and Optimization of Network Parameters Considering Load Uncertainty
摘要
Abstract
In view of load uncertainty, the uncertainty problem during the type selection of conductors and transformers is dealt with by nearest neighbor clustering and interval analysis. According to the feature of nodal admittance matrix in power flow calculation by Newton-Raphson method, the sensitivity formula for network loss to network parameters is simplified, and the sensitivity formula for network loss to admittance parameters and the sensitivity formula suitable to three-phase transformers are further derived to improve both accuracy and speed of the calculation. According to sensitivity interval values of transmission line and transformer the objective functions in interval form are given, and the optimized type selection is performed by optimized discrete bacterial colony chemotaxis (BCC) algorithm. Calculation results of an actual power transmission network in a certain medium-sized city in China show that the proposed algorithm is available.关键词
灵敏度/网损/区间分析/最近邻聚类/离散细菌群体趋药性Key words
sensitivity/ network loss/ interval analysis/nearest neighbor clustering/ discrete bacterial colony chemotaxis (BCC)分类
信息技术与安全科学引用本文复制引用
马丽叶,卢志刚,刘佳,李学平,鲍锋..计及负荷不确定性的电网参数分析和优化[J].电网技术,2012,36(12):146-152,7.基金项目
国家自然科学基金资助项目(61071201) （61071201）
河北省自然科学基金(F2010001319). （F2010001319）
