实时网损电量的计算及分摊  

CALCULATION AND APPORTIONMENT OF REAL-TIME ELECTRIC ENERGY LOSS IN POWER NETWORK

作　　者：冯林桥[1] 许文玉[1] 刘飞[1] 

机构地区：[1]湖南大学电气与信息学院,湖南长沙410012

出　　处：《中国电机工程学报》2004年第2期66-70,共5页Proceedings of the CSEE

摘　　要：该文阐述了电源在支路中引起的全电能损耗分量的概念及其叠加原理,及节点阻抗矩阵为基础的算法,推导了全电能损耗分量的精确计算公式。全电能损耗分量既包含了各电源单独作用时的电能损耗,又包含了电源间交叉作用项的电能损耗,仅与本身的电流分量共轭值有关,从而避免了网损分摊中对交叉项的粗略处理。实时网损电量计算的重要步骤是对全损耗功率分量分时段积分求和,采样间隔长短可调节以满足要求的精确度。在此基础上提出了按电源在支路中引起的全电能损耗分量公平分摊网损的新方法,分摊原则是谁引起的损耗由谁承担,该方法克服 了网损分摊中人工指定分配因子及按功率比例分摊网损的不足。The concept of whole electric energy loss component caused by power supplies in the branches is defined in this paper and the calculation method based on nodes' impedance matrix is also expounded. Accurate formulas are derived to whole electric energy loss component. The component includes not only electric energy loss caused by power supplies themselves, but also electric energy loss of cross items between supplies,but it is only relative to the conjugate value of the current component, so it is avoided to deal with the cross items sketchy for allocating network loss. The important step of computing the electric quantity of the real-time network losses is to sum subsection integrals of whole loss power component. Interval to sampling may be adjusted according to the needed precision.A new method that network loss is fair distributed according to whole electric energy loss component caused by power supplies in the branches is proposed, the principle is that every user be charged with the loss caused by its own. The method conquer the deficincy, which apportionment factor is appointed by man and apportion network loss in the proportion of power.

关 键 词：电网 电能损耗 功率损耗 潮流计算 网损电量 电力系统 

分 类 号：TM744[电气工程—电力系统及自动化]