作　　者： ; ; ; ;

机构地区： 重庆大学电气工程学院输配电装备及系统安全与新技术国家重点实验室

出　　处： 《电网技术》 2009年第17期174-179,共6页

摘　　要： 针对应用于南方电力市场的撮合交易机制,研究了基于撮合交易机制的结算规则与阻塞管理的关系,以调整费用最小为目标函数,提出了撮合交易机制下消除阻塞的模型与算法。由于该机制下的结算价格与机组出力之间是非线性联动关系,目标函数具有非线性特性,求解时选取每台发电机组与负荷方匹配成功的有功功率增量为求解变量,引入拉格朗日乘子建立增广目标函数,利用Kuhn-Tuck最优条件方法求解。6节点系统的计算比较结果表明:以调整费用最小为目标函数进行阻塞管理时,按统一边际价格结算时的调整费用最高,基于撮合交易机制的结算方式次之,按实际报价结算时的调整费用最低。 For the matchmaking transaction mechanism applied in South China electricity market, the relation between settlement rule based on matchmaking transaction mechanism and congestion management is researched. Taking the minimum adjustment cost as objective function, the model and algorithm to eliminate congestion under matchmaking transaction mechanism are proposed. Due to the nonlinear interaction relation between the settlement price and unit outputs under such mechanism, the objective function possesses nonlinear characteristic. To solve the proposed model, the active power increment of each generator that successfully matches with the load side is chosen as solving variable and augmented objective function is built by leading in Lagrange multiplier, then the proposed model is solved by Kuhn-Tuck optimal condition method. The calculation and comparison results of a 6-bus system show that when the congestion management is under the condition that minimal adjustment cost increment is taken as objective function, the adjustment cost will be the highest while the settlement is based on unified marginal price and that will be the lowest while the settlement is based on actual quoted price, and the adjustment cost will be between them while the settlement is based on the price of matchmaking transaction.

关 键 词： 电力市场 阻塞管理 撮合交易机制 灵敏度 结算方式

领　　域： [经济管理]