基于碳势-负荷数据双向反馈机制的配电网调度策略

Dispatch strategy for distribution network based on carbon intensity-load data bi-directional feedback mechanism

为降低配电网碳排放并增强负荷需求响应的合理性和有序性,提出一种基于碳势-负荷数据双向反馈机制的配电网低碳调度策略。根据碳排放流理论,在配电网层面构建负荷和储能系统碳排放流模型;建立需求响应优先级函数以评估各类负荷的需求响应能力,并基于该优先级设计相应的需求响应策略;结合配电网的经济性和低碳性,设计上层碳势数据与下层负荷数据双向反馈机制,基于该机制建立配电网双层低碳调度模型。改进的IEEE 33节点系统算例仿真结果表明,所提模型能够显著提高光伏消纳率,降低系统运行成本和碳排放量。

In order to reduce carbon emission in distribution network and enhance the rationality and orderliness of load demand response,a low-carbon dispatch strategy for distribution network based on carbon potential-load data bi-directional feedback mechanism is proposed.According to the carbon emission flow theory,a carbon emission flow model of load and energy storage system is constructed at the distribution network level.A demand response priority function is established to evaluate the demand response capability of various types of loads,and a corresponding demand response strategy is designed based on this priority.Combining the economy and low-carbon of distribution network,a bi-directional feedback mechanism between upper-level carbon potential data and lower-level load data is designed,and a two-layer low-carbon dispatch model for distribution network is established based on this mechanism.The example simulative results of an improved IEEE 33-bus system show that the proposed model can significantly enhance photovoltaic accommodation rate,and reduce system operation cost and carbon emission.