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Urban power grid operation risk calculation method and system

A technology for operational risk and urban power grids, applied in computing, instruments, data processing applications, etc., can solve problems such as reduced safety margins, difficulties in meeting power grids, and increased risk of power outages

Pending Publication Date: 2021-12-10
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology

During the peak load stage, some equipment in the power grid is often in a heavy-load or even overloaded operating state, which makes it difficult to meet the requirements of the safe operation guidelines of the power grid, resulting in a reduction in the safety margin of the system and an increase in the risk of power outages. bring serious challenges

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  • Urban power grid operation risk calculation method and system
  • Urban power grid operation risk calculation method and system
  • Urban power grid operation risk calculation method and system

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Embodiment Construction

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0045] In order to make those skilled in the art more clearly understand the purpose, technical solutions and advantages of the invention, the invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.

[0046] Please combine figure 1 As described above, a schematic diagram of the main flow of an embodiment of a method for calculating the operation risk of an urban power grid provided by the present invention is shown. combined figure 2 In the more detailed flowchart, in this embodiment, the method includes the following steps:

[0047] Step S10, establishing an operation risk model of the current power supply network...

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Abstract

The invention discloses an urban power grid operation risk calculation method. The method comprises the following steps of S10, establishing an operation risk model of a current power supply network; S11, determining each system state in the operation of the current power supply network, forming a system state set, and calculating the probability corresponding to each system state; S12, sequentially selecting one system state in the system state set, and performing consequence analysis and evaluation by adopting transient stability check, a static safety analysis method considering spare power automatic switching and a static voltage stability algorithm to obtain the risk indexes corresponding to the system states; and S13, according to the risk indexes corresponding to all the system states in the system state set, obtaining an overall risk index of the current power supply network. The invention further discloses a corresponding system. By implementing the method, the urban power grid operation risk index system can be calculated, the efficiency is high, and the accuracy is good.

Description

technical field [0001] The invention relates to the technical field of intelligent analysis and control of electric power systems, in particular to a method and system for calculating the operation risk of an urban power grid. Background technique [0002] The urban power grid is an important part of the power system and the main load center of the power system. At the same time, the urban power grid is directly oriented to power users, and is an important link between the large power grid and users. Therefore, the urban power grid has the characteristics of large power consumption, high load density, safety and reliability, and high quality requirements for power supply. [0003] In recent years, the social electricity load in some cities in my country has grown rapidly, and the development and construction of urban power grids appear to be relatively lagging behind. The original urban power grid often has some power supply bottlenecks due to long-term insufficient invest...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q10/06393G06Q10/067G06Q50/06
Inventor 何晓峰程维杰马伟哲程韧俐郑晓辉吴新陈择栖林子钊翁毅选刘金生史军齐晖陈洪云龚晨林小朗张炀
Owner SHENZHEN POWER SUPPLY BUREAU
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