Power flow risk perception method for power grid

A technology of risk perception and power grid flow graph, which is applied in the field of power system simulation and calculation analysis, can solve the problems of difficult power grid risk control, low quality of personnel, and lagging production management system construction, so as to improve stability and resources The effect of deployment ability

Pending Publication Date: 2019-09-06
GUIZHOU POWER GRID CO LTD
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  • Abstract
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Problems solved by technology

[0004] At present, there are unfavorable factors such as lagging behind in the construction of production management systems, low quality of personn...

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  • Power flow risk perception method for power grid
  • Power flow risk perception method for power grid
  • Power flow risk perception method for power grid

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] Such as figure 1 Shown is a schematic flow chart of the power grid power flow risk perception method of the present invention; a power grid power flow risk perception method includes the following steps:

[0057] S1. Obtain the network structure diagram of the power grid;

[0058] S2. Calculate the corresponding Jacobian matrix under the grid power flow according to the grid grid diagram;

[0059]S3. Singular value decomposition is performed on the Jacobian matrix under the power flow of the power grid, and the voltage and power distribution of each node in the physical transmission line i...

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Abstract

The invention discloses a power flow risk perception method for a power grid. The method comprises the steps of obtaining a power grid frame diagram, constructing a Jacobian matrix, calculating the power flow diagram of the power grid and performing risk perception early warning on the power grid. The corresponding Jacobian matrices under different conditions of power flow can be obtained according to the power grid frame diagram, then singular value decomposition is performed on the Jacobian matrix under the power flow of the power grid. The power flow diagram of the power grid is obtained bycalculating the voltage and power distribution of each node in the physical transmission line, and risk perception early warning of the power grid is performed according to the power flow diagram ofthe power grid so as to find out the hidden dangers in the power grid line and eliminate them, and the design scheme of the power grid is optimized through power flow calculation and thus the stability of the power system and the allocation ability of resources can be enhanced.

Description

technical field [0001] The invention belongs to the technical field of power system simulation and calculation analysis, and in particular relates to a power flow risk perception method. Background technique [0002] When the power system is running, under the excitation of the power supply potential, the current or power flows from the power supply to the load through each component of the system, and is distributed throughout the power grid, which is called power flow; the power system is composed of many power stations, substations, and distribution stations , users, etc. are connected by transmission and distribution lines to form a system. Electricity (electric energy) is generated in power stations, part of which is lost when passing through transmission and distribution lines, substations and distribution stations, and most of the rest is eventually consumed by loads. In this way, from the generation of electricity to the consumption by the load, which transmission a...

Claims

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Application Information

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IPC IPC(8): H02J3/06
CPCH02J3/06H02J2203/20
Inventor 陈奂张衡桂昌乾张正义许朝萍陈明刚张显文詹乐贵覃义荣龙章勇刘君林先堪石鹏昌喻群杨皓张宇红
Owner GUIZHOU POWER GRID CO LTD
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