| 引用本文: | 徐俊俊,陈洪凯,张腾飞,王冲.需求响应视角下有源配电网分层分区切负荷方法[J].电力自动化设备,2022,42(7): |
| XU Junjun,CHEN Hongkai,ZHANG Tengfei,WANG Chong.Hierarchical and partitioned load shedding method of active distribution network in demand response perspective[J].Electric Power Automation Equipment,2022,42(7): |
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| 摘要: |
| 线路发生故障或出现功率缺额时，配电网需快速切除部分负荷以保障系统整体运行的可靠性。提出了一种考虑需求响应的有源配电网分层分区精准切负荷方法：首先定义电气距离，结合社区发现方法将配电网划分为若干子区域；其次，建立以用户满意度最大和全网需求响应成本最小为目标函数，同时考虑子区域内安全运行、用户响应意愿等约束的有源配电网本地切负荷模型，并采用混合整数二阶锥规划算法对该线性模型进行高效求解；最后，基于事件触发机制思想构建有源配电网多区域协调控制架构，利用有限通信资源实现区域内/区域间切负荷信息的有效交互与精准执行。算例分析结果表明，与传统切负荷方案相比，所提切负荷方法不仅能够改善分布式电源接入后的系统电压水平、减少切负荷成本、提高用户参与需求响应的满意度，还可以缓解配电网多层级通信传输压力，提升复杂配电网切负荷方案的效率。 |
| 关键词: 配电网 切负荷 需求响应 分布式电源 事件触发机制 |
| DOI：10.16081/j.epae.202206013 |
| 分类号:TM71 |
| 基金项目:国家自然科学基金资助项目(62073173,61833011)；江苏省自然科学基金资助项目(BK20200761, BK20191376) |
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| Hierarchical and partitioned load shedding method of active distribution network in demand response perspective |
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XU Junjun1, CHEN Hongkai1, ZHANG Tengfei1, WANG Chong2
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1.College of Automation & College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;2.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
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| Abstract: |
| When the power line fault or the power shortage occurs, the partial load should be quickly shed to ensure the reliability of the distribution network system. A hierarchical and partitioned load shedding method of active distribution network considering demand response is proposed. Firstly, the electrical distance is defined, and the distribution network is divided into several sub-areas combined with the community discovery method. Secondly, the local load shedding optimization model of the active distribution network is established, which takes the maximum user satisfaction and the minimum demand response cost of the whole network as the objective function and considers the constraints of safe operation and user response willingness in the sub-areas. Moreover, the mixed-integer second-order cone programming algorithm is used to solve the model efficiently. Finally, based on the idea of event-trigger mechanism, the hierarchical and zoning coordination control architecture of active distribution network is constructed, and the effective interaction and accurate execution of load shedding information within/between areas are realized by using limited communication resources. Results of case analysis show that compared with the traditional load shedding scheme, the proposed method can not only improve the system voltage level after the access of distributed generation, reduce the load shedding cost and improve the satisfaction of users to participate in the demand response, but also alleviate the multi-level communication transmission pressure of distribution network and improve the efficiency of load shedding scheme of complex distribution network. |
| Key words: distribution network electric load shedding demand response distributed generator event-trigger mechanism |
