A method and system for forward load transfer of urban power grid considering network resilience
A technology of urban power grid and power system, which is applied in the direction of probability network, calculation, calculation model, etc., and can solve the problems that the security of the power grid needs to be improved.
Active Publication Date: 2022-06-28
JIANGSU ELECTRIC POWER CO +1
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[0003] However, security is a factor considered by the traditional power grid. When planning the power supply path in the existing research, the security and other indicators of the power grid are placed in the constraint conditions when solving the solution, so the power supply path obtained must satisfy the security, but The actual security of the power grid needs to be improved
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[0039] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0040] like figure 1 As shown in the figure, the forward-load transfer method of urban power grid considering network resilience includes the following steps:
[0041] Step 1, obtain the results of the prediction system, and obtain high-risk nodes or lines;
[0042] Step 2, take the high-risk node as the center and a circuit breaker as the radius to obtain the first-level area; take the nodes in the first-level area as the cente...
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This disclosure belongs to the technical field of power generation, power transformation or power distribution, and discloses a method and system for forward load transfer of urban power grids that take into account network resilience, including: obtaining the results of the forecasting system to obtain high-risk nodes; taking the high-risk nodes as The center is separated by a circuit breaker as a radius to obtain a first-level area; the node in the first-level area is used as the center and a circuit breaker is separated by a radius to divide a second-level area; the circuit breaker in the second-level area is used as an argument , using the particle swarm algorithm to obtain the optimal transfer path; input the system structure and power flow into the forecasting system, and then calculate the toughness index, which is practical in judging the specific system; when performing load transfer, the toughness is also considered and safety, and the weights of the two can be adjusted correspondingly according to the requirements; since the system power flow changes in real time, the importance evaluation results also change, which can adapt to the real-time changing power system and can play a good role in advanced control.
Description
technical field [0001] The present disclosure belongs to the technical field of power generation, substation or power distribution, and in particular relates to a method and a system for forward transfer of urban power grid load taking into account network resilience. Background technique [0002] In recent years, with the increasing frequency of large-scale power outages caused by extreme natural disasters, resilience has received increasing attention in power systems. Resilience is a measure of whether the system can change its own state to reduce the system loss during the failure in the event of severe disturbance or failure, and the ability to return to the original normal state as soon as possible after the failure ends. Resilience includes the ability of a system to withstand and recover from deliberate attacks, accidents, or natural disasters. Specific to the power system, resilience mainly measures the power system's ability to support and restore key loads in natu...
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IPC IPC(8): G06Q10/04G06Q10/06G06N3/00G06N7/00
CPCG06Q10/047G06Q10/06393G06N3/006G06N7/01
Inventor 吕洋陈中苏大威黄学良丁宏恩毛东宇赵奇李春徐秀之王若晨
Owner JIANGSU ELECTRIC POWER CO