基于功率从属性追踪的购电节点成本分析  

Cost analysis of electric power purchase node based on power dependency trace

作　　者：王小君[1] 鲍海[1] 

机构地区：[1]华北电力大学电气工程学院,北京102206

出　　处：《继电器》2008年第9期35-38,共4页Relay

摘　　要：为准确分析电网实际运行中每个购电节点的成本盈亏情况,提出了一种基于功率从属性追踪的购电节点成本分析方法。该方法在分析电网功率从属性分布的基础上,构建了电网络功率从属性追踪模型,确定了负荷功率中各电源提供功率的份额;其次采用了一种公平合理的经济准则作为描述能量传输过程中能量损耗引起的经济利益变化的依据,即节点费用守恒原则。该方法可以直接得出购电节点购电成本与负荷节点售电电力成本的解析表达式。最后,通过IEEE9节点算例,验证了该方法对电力市场条件下的购电节点成本分析具有实际应用意义。To analyze the cost of electric power purchase node, this paper presents an analysis method of electric power purchase node cost based on power dependency trace. This method establishes the power dependency trace model and gets each power source＇s share in loads based on the power dependency analysis. And this method adopts the flow conservation principle as economic variation criterion because of the transmission losses. The direct relationship between cost of purchase node and load node price involving power loss is clearly showed. At last, the computational result on power system of IEEE 3 generators and 9 nodes proves that the method presented in this paper is available in the practical applications,

关 键 词：电力市场 购电成本分析 节点费用守恒 功率从属性追踪 

分 类 号：TM73[电气工程—电力系统及自动化]