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1.电力设备电气绝缘国家重点实验室,陕西省西安市 710049
2.西安交通大学电力系统及其弹性研究所,陕西省西安市 710049
Received:28 February 2022,
Revised:2022-04-16,
Published Online:08 July 2022,
Published:10 September 2022
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林超凡,陈晨,别朝红等.含动态不确定性与频率电压控制的城市配电网灾后负荷恢复方法[J].电力系统自动化,2022,46(17):56-64.
LIN Chaofan,CHEN Chen,BIE Zhaohong,et al.Post-disaster Load Restoration Method for Urban Distribution Network with Dynamic Uncertainty and Frequency-Voltage Control[J].Automation of Electric Power Systems,2022,46(17):56-64.
林超凡,陈晨,别朝红等.含动态不确定性与频率电压控制的城市配电网灾后负荷恢复方法[J].电力系统自动化,2022,46(17):56-64. DOI: 10.7500/AEPS20220228004.
LIN Chaofan,CHEN Chen,BIE Zhaohong,et al.Post-disaster Load Restoration Method for Urban Distribution Network with Dynamic Uncertainty and Frequency-Voltage Control[J].Automation of Electric Power Systems,2022,46(17):56-64. DOI: 10.7500/AEPS20220228004.
“双碳”目标下,大规模分布式新能源接入增加了城市配电网在极端事件下的不确定性与控制复杂度,亟须提出相适应的灾后负荷恢复方法,保障城市配电网的安全运行。现有灾后负荷恢复方法未充分考虑运行层面下动态变化的不确定性、动态微电网边界变化、频率电压控制等实际因素,影响了负荷恢复策略在实际配电网中的可行性。为此,文中首先通过C-Vine Copula和条件概率准确刻画新能源和负荷的动态不确定性。其次,建立了考虑动态微电网划分和频率电压控制的灾后负荷恢复优化模型,并提出了高效的两阶段求解算法。最后,面向实时调度,搭建了城市配电网在线负荷恢复框架,实现灾后负荷恢复策略的滚动更新。文中所提方法的有效性在改进的IEEE 37节点馈线系统中得到了验证。
For the carbon emission peak and carbon neutrality
the large-scale penetration of distributed renewable energy resources increases the uncertainty and control complexity of urban distribution networks under extreme events. An adaptive post-disaster load restoration method is urgently needed to ensure safe operation of urban distribution networks. The current post-disaster load restoration methods do not fully consider the uncertainty of dynamic changes at the operational level
dynamic microgrid boundary changes
frequency-voltage control
and other practical factors
which affects the feasibility of the load restoration method in the actual distribution network. For this purpose
first
this paper accurately characterizes the dynamic uncertainty of renewable energy resources and load with the C-Vine Copula and conditional probability. Then
a post-disaster load restoration optimization model is proposed considering dynamic microgrid partition and frequency-voltage control
and an efficient two-stage solving algorithm is also proposed. Finally
an online load restoration framework for urban distribution networks is built for real-time dispatching to realize rolling updates of post-disaster load restoration strategies. The effectiveness of the proposed method is verified in an modified IEEE 37-bus feeder system.
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