电力市场网损分摊方法分析-电力系统及其自动化专业论文.docxVIP

电力市场网损分摊方法研究 摘 要 本文在对网损分摊方法进行较为全面综述的同时 着重研究了跟踪 潮流法 边际网损系数法 无功功率对网损分摊的影响以及不同电力市 场交易模式下的网损分摊方法 在跟踪潮流法研究中 综合顺流跟踪和逆流跟踪的模型和算法 推 导出独立发电厂商IPP的网损分摊公式 该方法根据 IPP 功率的物 理流向 实现了 IPP 网损的合理分摊 在边际网损系数法中 提出了 网 损平移 思想的网损调整方法 该方法在实现分摊网损与实际网损保持 一致的前提下 很好地保留了原有的网损成本经济信号 通过无功功率 对网损分摊影响的研究表明 忽略无功功率 会使系统和各节点分摊的 网损有较大的误差 充分说明了网损分摊中计及无功功率的重要性和必 要性 最后 研究了电力市场交易模式对网损分摊方法的影响 文中根据 不同交易模式的特点 提出了联营体模式采用跟踪潮流法和基于双边交 易的市场模式采用边际网损系数法的思想 并以 IEEE 14 30 节点系统 和某实际 2243 节点系统算例分别验证了各个所提方案的可行性和有效 性 具有一定的实用价值 关键词 电力市场 网损分摊 跟踪潮流法 边际网损系数法 交易模 式 比例法 平移法 节点无功功率 RESEARCH ON POWER MARKET LOSS ALLOCATION METHODS ABSTRACT This paper is focused on power flow tracing method, the marginal loss coefficient method, the effects of bus-injected reactive power on the loss allocation and loss allocation methods under different power market transaction models. In power flow tracing method, the models and algorithms of the up-stream tracing and the down-stream tracing are combined to solve the problem of individual power plant (IPP) loss allocation. According to the trait of the ability to trace the IPP power flow, the new method can allocate the losses of IPP effectively. For the marginal loss coefficient method, a novel idea of “ loss shifting” is introduced to regulate the losses allocated by the marginal loss coefficient method. The shifting method can not only keep the allocated losses consistent with the actual losses, but hold the original economic signals unchanged. The effects of bus-injected reactive power on loss allocation show that the ignoring of bus- injected reactive power may result in the error of loss allocation for the network and the individual bus, which shows the importance and necessity of considering the effects of the bus-injected reactive power on loss allocation. In the end, the effects of the power market transaction models on determining the loss allocation methods are studied. This paper points out that the power flow tracing method is especially s