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| Coordinated pre-disaster and in-disaster optimization for power supply assurance of distribution networks under pluvial flooding |
| DOI：10.19783/j.cnki.pspc.260195 |
| Key Words:inundation simulation inundation depth mobile pumping vehicles proactive pre-drainage pre-disaster deployment in-disaster dynamic dispatch |
| Author Name | Affiliation | | GAO Mingyu | 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Chengdu Customs Technology Center, Chengdu 610041, China
3. State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing 211106, China | | XU Lixiong | 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Chengdu Customs Technology Center, Chengdu 610041, China
3. State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing 211106, China | | LIU Surui | 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Chengdu Customs Technology Center, Chengdu 610041, China
3. State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing 211106, China | | HUANG Yuan | 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Chengdu Customs Technology Center, Chengdu 610041, China
3. State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing 211106, China | | LI Feng | 1. College of Electrical Engineering, Sichuan University, Chengdu 610065, China
2. Chengdu Customs Technology Center, Chengdu 610041, China
3. State Grid Electric Power Research Institute (NARI Group Corporation), Nanjing 211106, China |
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| Abstract:With global climate change and rapid urbanization, pluvial flooding has become increasingly frequent, posing severe threats to the operational security of distribution networks. Existing studies mainly focus on post-flood load restoration after equipment has been inundated, while overlooking proactive defense strategies such as pre-drainage using mobile pumping vehicles before equipment is submerged. To address this issue, this paper proposes a coordinated pre-disaster and in-disaster optimization method for power supply assurance of distribution networks under urban flooding. First, based on a two-dimensional hydrodynamic model, an effective drainage coefficient is introduced to develop an approximate inundation depth model that incorporates the drainage effect of mobile pumping vehicles. Second, an equivalent travel time model is employed to characterize the impact of road flooding on the mobility of transportation resources, and the corresponding pre-disaster deployment and in-disaster dynamic dispatch constraints for mobile pumping vehicles and mobile energy storage vehicles are established. Subsequently, by coordinating multiple resilience measures, including mobile pumping vehicles, mobile energy storage vehicles, distributed generators, and network reconfiguration, a coordinated optimization method for power supply assurance considering dynamic evolution of inundation depth is proposed. Finally, case studies conducted on a modified IEEE 33-bus distribution system under different rainfall scenarios demonstrate that the proposed method can effectively shorten outage durations and reduce load curtailment. |
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