多时间尺度下配–微协同需求响应

Multi-time-scale Demand Response of Coordinated Distribution Network and Microgrid

  • 摘要: 目前,在配网与微网物理连接、信息交互等多方面耦合的基础上,配–微协同的需求响应模式逐步形成。然而,现有的研究未充分挖掘配网对微网需求响应的主导作用,且未对不同利益主体的需求响应特性进行细粒度的区分。因此,实现微网对配网的主动支撑及需求响应是加强配网与微网融合的关键问题。针对多时间尺度的配–微协同的需求响应,分析微网内部的多种类型负荷资源响应特性,并对多形态负荷资源依据响应时间进行了分级与时序建模,进而提出微网多时间尺度可调度能力评估方法。最后建立基于可调度能力评估的配–微协同需求响应模型,并通过算例验证配–微协同的需求响应可实现配网与微网的协同经济安全运行。

     

    Abstract: Currently, on the basis of the coupling of distribution network and microgrid in various aspects such as physical connection and information exchange, a demand response (DR) mode for coordinated distribution network and microgrid has gradually emerged. However, existing research has not fully explored the leading role of distribution network in microgrid demand response, nor has it provided a fine-grained distinction of demand response characteristics among different stakeholders. Therefore, enabling active support and demand response from microgrid to distribution network is crucial to strengthen the integration between distribution network and microgrid. To address the demand response of multi-time-scale distribution network and microgrid coordination, the response characteristics of various types of load resources in microgrid are analyzed, and a multi-time-scale scheduling capability evaluation method is proposed based on hierarchical and temporal modeling of heterogeneous load resources. Finally, a demand-response model based on schedulable capability evaluation is established, and a case study is conducted to validate the capability of the demand-response model in realizing coordinated, economic, and secure operation of distribution network and microgrid.

     

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