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Urban power distribution network recovery method considering mobile emergency resource scheduling

An emergency resource and distribution network technology, applied in the power grid field, can solve problems such as the long time for the entire network to fully restore power supply, and the emergency power supply cannot support the restoration of the entire network, so as to ensure the power supply of important loads, reduce the time of power outages for loads, and reduce the loss effect

Active Publication Date: 2021-09-03
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the load equipped with emergency power supply can maintain its own power supply for a short period of time, but considering that it takes a long time for the entire network to fully restore power supply, the equipped emergency power supply cannot support the recovery of the entire network. Resource support is very necessary

Method used

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  • Urban power distribution network recovery method considering mobile emergency resource scheduling
  • Urban power distribution network recovery method considering mobile emergency resource scheduling
  • Urban power distribution network recovery method considering mobile emergency resource scheduling

Examples

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Embodiment

[0053] Mobile emergency resources can include mobile power generation resources and maintenance personnel: mobile power generation resources include mobile emergency generators, mobile emergency energy storage and electric buses, etc. After a fault occurs, according to the arrangement of the power grid dispatching center, each resource travels to the corresponding maintenance point , after arriving at the designated location and connecting to the power grid, it will be used as a power generation resource to provide output; maintenance personnel will go to the faulty line to repair the line. However, due to the uncertainty of the location of the fault, and the uncertainty of the time when the dispatch center gives the plan and the time when the mobile resource arrives at the fault point according to the communication conditions, weather conditions, and road congestion of the day, it also needs to be considered factor into the arrival time of mobile emergency resources.

[0054]...

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Abstract

The invention provides an urban power distribution network recovery method considering mobile emergency resource scheduling. The method comprises the following steps of: establishing a mobile power generation resource constraint model considering the constraint of the time when mobile power generation resources arrive at a fault; establishing a topology constraint model considering the constraint of repairing the line by maintenance personnel; establishing a multi-period urban power distribution network fault recovery model considering mobile emergency resource scheduling by taking weighted power supply time maximization of a load as a target and taking an operation constraint, the mobile power generation resource constraint model, the topology constraint model and a load state constraint as constraint conditions; and solving the multi-period urban power distribution network fault recovery model considering mobile emergency resource scheduling, and carrying out mobile emergency resource scheduling on an urban power distribution network according to a solving result. According to the method, the optimal recovery strategy can be obtained, so that the purposes of rapidly generating a recovery strategy, guaranteeing important load power supply and reducing load power-off time are achieved.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to an urban distribution network recovery method considering mobile emergency resource scheduling. Background technique [0002] Due to the occurrence of extreme events with low probability and high risk, key power facilities such as substations and lines of the power grid will be damaged, resulting in regional power outages. With the increase of power outage time, important loads in the region continue to lose power supply. At this time, the fault will spread from the power grid to multiple levels, resulting in continuous expansion of losses, and even casualties in severe cases. In the event of a blackout, the connection between the distribution network and the large power grid is disconnected, causing the distribution network to lose an important source of power, while local power generation resources, such as energy storage and independent fuel generators, are limited by the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J9/04
CPCH02J3/00H02J3/007H02J9/04H02J2203/20H02J2203/10
Inventor 谢伟宋平张琪祁刘家妤许寅王颖和敬涵王小君倪平浩王炜歆
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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