Post-disaster restoration strategy of power distribution systems based on topology reconfiguration and distributed generation scheduling

doi:10.3969/j.issn.2097-0706.2022.02.005

Abstract

Abstract:

A post-disaster restoration（PDR）strategy is proposed to enhance the resilience of power system against extreme weather.Under the N-k fault scenarios,a cooperative dispatching model of topological reconfiguration and distributed generators（DGs）is established to minimize the load-shedding cost due to disasters.The PDR strategy model characterizes the radial topological constraints,DG scheduling constraints and system power flow constraints in fault scenarios as a set of mix integer linear equations.The proposed method fully considers the operating characteristics of dispatchable DGs,non-dispatchable DGs and shunt capacitors.Finally,the proposed PDR strategy is validated by an IEEE 33-bus system in serious fault scenarios.

Key words: extreme weather, post-disaster restoration（PDR）, distribution system resilience, topology reconfiguration, distributed generator, shunt capacitor

CLC Number:

TM7：TK514

WANG Zhuorong, SHI Qingxin. Post-disaster restoration strategy of power distribution systems based on topology reconfiguration and distributed generation scheduling[J]. Integrated Intelligent Energy, 2022, 44(2): 29-34.

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分类	参数	参数值
系统元件	负荷	3 715 kW+j2 300 kV·A
	柴油发电机	3台,600 kW
	光伏系统	8台,640 kW
	并联电容器	4台,1 100 kV·A
费用	c^G	1.5 元/（kW·h）
费用	c^L	9.0 元/（kW·h） (重要负荷) 2.5 元/（kW·h） (非重要负荷)
系统电压标么值	V^min	0.93
	V^max	1.05
	V_sub0	0.99

项目	场景1	场景2
最小节点电压标么值	0.988	0.966
总运行费用/万元	1.521	4.835