基于交流灵敏度的电能交易与输电权的统一拍卖

最优潮流程序便于实现线路有功功率和有功网损的交流灵敏度的计算和分析,且基于交流灵敏度信息的输电权计算可以更好地匹配实际潮流,故采用交流灵敏度信息作为市场交易的依据。同时,简化的市场结构可以降低电力市场交易成本和提高市场交易效率,由于电能交易同输电权交易具有相同的市场拍卖形式,因此以交流灵敏度信息为基础,建立了点对点输电权、基于潮流的输电权和电能交易的统一拍卖市场。提出的拍卖模型在数学上是一个线性规划问题,可以利用成熟的线性规划方法进行解算。这种统一市场实现了电能交易与输电权交易的全面优化,也为市场参与者在同一市场下提供了更多的选择。IEEE9节点算例证明了该方法的有效性。

A joint auction of energy and transmission rights based on AC sensitivity

Optimal power flow program is suitable for the sensitivity calculation of active power of transmission lines and active power loss of network. Because the AC sensitivity based transmission rights calculation matches the actual power flow better,it is applied to the market trade. The simplified market structure can reduce market trade cost and improve the efficiency of market transactions. As energy trade and transmission right trade have same market transaction form,a model based on AC sensitivity is proposed for the joint auction of energy,point-to-point transmission rights and flow-based transmission rights,which is a linear programming problem in mathematics and can be solved by mature linear programming approaches. An integrated optimization of energy and transmission rights transactions is achieved,which provides more choices for market participants in one auction market. IEEE 9-bus system is employed to demonstrate its efficiency.