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考虑电动汽车参与韧性提升的配电网状态平滑切换控制策略OA北大核心CSTPCD

Enhancing Distribution Network Resilience:Electric Vehicle Integration in Seamless State Switching Strategy

中文摘要英文摘要

在极端灾害发生后电动汽车(electric vehicle,EV)可作为移动电源给负荷供电,从而支撑配电网韧性提升.针对配电网故障发生不可预见、正常态和故障态调度模型切换导致调度指令不稳定问题,文章研究了运行状态平滑切换的EV参与配电网韧性提升策略.基于EV状态和连接方式的二进制变量建立线性化EV时空动态模型,能适应EV灵活调度算力大的需求.考虑EV和交通网不确定性因素,建立基于交通网和配电网信息实时滚动更新的正常态和故障态统一调度模型,正常态以经济性和韧性最优为目标,故障态以韧性最优为目标,通过引入状态表征参数实现两种状态间平滑切换.算例仿真表明,该策略在不影响精度的情况下显著降低了计算量,有助于实现配电网最优韧性恢复和状态平稳过渡.

In the aftermath of extreme disasters,electric vehicles(EV)can serve as mobile power sources,bolstering the resilience of distribution networks by supplying power to critical loads.To address the challenge of dispatching instruction instability stemming from unforeseeable faults,alongside the need for seamless switching between normal and fault state scheduling models in distribution networks,this study explores the integration of EVs into resilience enhancement strategies,with smooth switching of the running state.Based on the normalization of binary variables representing the EV state and connection mode,a linearized EV spatiotemporal dynamic model is developed,meeting the power requirements for large flexible EV scheduling computations.Considering the uncertainty factors inherent in EVs and transportation networks,a unified scheduling model encompassing both normal and fault states is formulated.This model relies on real-time rolling updates of information from both the transportation and distribution networks.In the normal state,the objective is to optimize economy and resilience,while the fault state aims at solely optimizing resilience.The seamless switching between these two states is realized through the introduction of state characterization parameters.The simulation results demonstrate that the proposed strategy significantly reduces computational overhead without compromising accuracy,thereby facilitating optimal resilience recovery and smooth transitions within the distribution network.

马继洋;蔡永翔;唐巍;张璐;张志刚

中国农业大学信息与电气工程学院, 北京市 100083贵州电网有限责任公司电力科学研究院, 贵阳市 550002

动力与电气工程

配电网电动汽车韧性平滑切换运行控制

distribution networkelectric vehicletoughnesssmooth switchingoperation control

《电力建设》 2024 (005)

29-36 / 8

This work is supported by National Natural Science Foundation of China(No.51977211). 国家自然科学基金面上项目(51977211)

10.12204/j.issn.1000-7229.2024.05.004

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