Automatic generation method for coordinated control area in region-county integrated automatic voltage control

An automatic voltage and control area technology, applied in the direction of AC network voltage adjustment, circuit devices, AC network circuits, etc., can solve the problems of generating a coordinated control area integrated with the county and county, and cannot be manually set in advance

Active Publication Date: 2015-02-11
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0027] Due to frequent changes in the way the grid operates, coordinated control areas The elements in are often changed with the operation mode and cannot be manually set in advance
Therefore, in the AVC system, it is necessary to automatically generate district-county integrated coordinated control partitions in real time From the published literature, it is found that there is currently no method that can automatically generate a coordinated control area for the integration of prefectures and counties in real time and in real time

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Embodiment Construction

[0061] Below to figure 2 Taking the grid shown as an example, a specific embodiment of the present invention is introduced. The basic situation of this embodiment is as follows:

[0062] An actual 220kV-110kV-35kV area selected in this embodiment, figure 2 The actual complex model is simplified and the typical grid structure is preserved. This area covers the 220kV substation and the 110 substation under the jurisdiction of the local survey and the 35kV substation under the jurisdiction of the county survey, which is in line with the area covered by the integration of prefectures and counties in the present invention. Among them, the 35kV busbar on the low-voltage side of the 220kV substation is connected to a 35kV substation, the 110kV busbar on the medium-voltage side is connected to a 110kV substation, and the 35kV busbar on the low-voltage side of the 110kV substation is also connected to a 35kV substation.

[0063] In the method of this embodiment, the control cycle ...

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Abstract

The invention relates to an automatic generation method for a coordinated control area in region-county integrated automatic voltage control and belongs to the technical field of the automatic voltage control of power systems. The method comprises the following steps of generating a model of a 110kV power grid connected with a 220kV transformer of a regional power grid, and generating the coordinated control area; adding a 35kV transformer substation connected with a low-voltage side winding of the 220kV transformer of the regional power grid into the generated coordinated control area; generating a model of a county-level 35kV power grid connected with a 110kV transformer of the regional power grid, and generating a 110kV coordinated sub-control area; adding the generated 110kV coordinated sub-control area into the generated coordinated control area. According to the method, the coordinated control area for the region-county integrated automatic voltage control can be quickly and automatically formed, and the requirements on coordinated reactive voltage control over superior and subordinate transformer substations of region-county power grids are met.

Description

technical field [0001] The invention belongs to the technical field of automatic voltage control of electric power systems, and provides a method for automatically generating a coordination control area by performing multi-level topology analysis on a power grid in the integrated automatic voltage control of prefectures and counties. Background technique [0002] Automatic Voltage Control (hereinafter referred to as AVC, Automatic Voltage Control) system is an important means to achieve power grid security (increase voltage stability margin), economy (reduce network loss), and high-quality (increase voltage pass rate) operation. Control the reactive power output of generators, transformer taps and reactive power compensation equipment to achieve a reasonable distribution of reactive power and voltage in the grid. [0003] The master station part of the AVC system is implemented in the power system control center based on software programs, which requires that it must be cons...

Claims

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Application Information

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IPC IPC(8): H02J3/06H02J3/18
CPCH02J3/16H02J2203/20Y02E40/30
Inventor 于磊汤磊王双韩宇龙谷文旗常晓慧谢旭王阳王祖光付启穆亮李云王磊郭庆来
Owner STATE GRID CORP OF CHINA
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