空调聚合商参与下的负荷控制与配电网重构

空调负荷的激增降低了配电网运行安全裕度,空调负荷聚合商已成为参与分散式温控负荷控制的新兴商业模式。文中提出面向聚合商参与的配电网温控负荷控制与运行重构策略模型,通过运行方式调整和负荷响应调节,耦合作用于系统安全运行。其中,不同聚合商以空调负荷调节协议方式集中管理温控负荷资源,并以分段报价方式争取市场利益;配电公司以最小化结算成本为目标,统筹多时段运行重构和负荷控制决策。通过凸规划方法进行约束条件等效,利用Mosek求解处理后混合整数二阶锥规划模型,确保了策略的计算效率。采用改进的IEEE 33节点系统算例验证了所提方法的适用性与有效性。

Load Control and Distribution Network Reconfiguration with Participation of Air-conditioning Load Aggregators

The significant increase of the air-conditioning load reduces the operation security margin of distribution network. The air-conditioning load aggregator has become an emerging business mode to participate in the decentralized thermostatically controllable load(TCL). This paper proposes a model integrating TCL and distribution network reconfiguration with the participation of air-conditioning load aggregators. The operation mode adjustment and the load response adjustment are both used for the system safety operation. The centralized management of dispersed thermostatic loads is conducted by different air-conditioning load aggregators through air-conditioning load regulation protocol, and the market interest is gained by way of piecewise bidding. Aiming at minimizing the settlement cost, the distribution company plans the multi-period reconfiguration and load control strategies. The constraint conditions are relaxed by the convex programming, and the mixed integer second-order cone programming model is solved by Mosek to guarantee the computational efficiency of the strategy. The applicability and effectiveness of the proposed method are verified by an improved IEEE 33-bus system.