摘要
为解决分布式光伏剩余功率注入配电网导致的电压抬升和线路过载问题,利用配电网中空调负荷良好的热储能特性,提出了一种基于调温启停混合控制方式的空调负荷双层优化调度策略,建立了包含电力公司、负荷聚合商(load aggregators,LA)和用户的双层优化调度架构。首先电力公司以网损损失成本和需求响应成本之和最小为目标向负荷聚合商下达调度指令,其次,负荷聚合商以利润最大为目标,选择不同用户的控制方式。相比于传统控制方法,此调度策略改善了聚合空调功率在响应跃迁处的响应效果,更快地达到了调度指令的要求,同时聚合功率保持稳定,促进了分布式光伏的消纳,使节点电压和线路传输功率保持在安全运行范围内。最后,采用基于改进的IEEE33节点进行分析,仿真结果验证了所提调度策略的可行性和有效性。
To cope with the voltage rise and transmission line overload due to residual distributed PV power injected into the distribution network,by use of good thermal energy storage characteristics of air-conditioning load in distribution network,a temperature and switch hybrid control-based bi-level optimal dispatch strategy for air-conditioning load was proposed,and a bi-level optimal dispatch architecture including power grid company,load aggregators(abbr.LA)and consumers was established.Firstly,taking the minimum sum of network loss cost and demand response cost as objective,the electric power company issued dispatching command to LA.Secondly,taking maximum profit as the objective,the LA chose the control modes for different consumers.Comparing with traditional control methods,the proposed strategy improved the response effect of the aggregated air-conditioning power to the step,and the requirement of dispatching command could be met more quickly,meanwhile the aggregated power could be kept stable,thus the accommodation of distributed PV was promoted,and the nodal voltage and the transmitted power of line could be kept within secure operation range.Finally,the proposed strategy was simulated by modified IEEE 33-bus distribution system.Both feasibility and effectiveness of the proposed dispatching strategy are verified by simulation results.
作者
朱兰
杨鑫宇
唐陇军
王坤
丁雨佳
陈子墨
ZHU Lan;YANG Xinyu;TANG Longjun;WANG Kun;DING Yujia;CHEN Zimo(School of Electrical Engineering,Shanghai University of Electric Power,Yangpu District,Shanghai 200090,China;East China Branch,State Grid Corporation of China,Pudong New Area,Shanghai 200120,China)
出处
《现代电力》
北大核心
2023年第2期219-229,共11页
Modern Electric Power
基金
国家自然科学基金项目(51807114)
上海绿色能源并网工程技术研究中心资助项目(13DZ2251900)。
关键词
分布式光伏
需求侧响应
空调负荷
调温控制
启停控制
双层优化调度
distributed PV
demand response
air-conditioning load
temperature control
switch control
bi-level optimal dispatch
