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.