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A planning method for typical power supply mode in hierarchical and partitioned provincial power grid

A provincial power grid and power supply mode technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as difficult and multi-voltage power grid planning schemes, and achieve the effect of improving the flexible transfer capacity of power flow and realizing comprehensive optimization.

Active Publication Date: 2022-02-01
STATE GRID CORP OF CHINA +2
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Problems solved by technology

However, with the rapid development of load and the increase of uncertainty in grid construction, similar local adjustment schemes are difficult to construct a grid planning scheme for coordinated development of multi-voltage levels globally

Method used

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  • A planning method for typical power supply mode in hierarchical and partitioned provincial power grid
  • A planning method for typical power supply mode in hierarchical and partitioned provincial power grid
  • A planning method for typical power supply mode in hierarchical and partitioned provincial power grid

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] figure 1 It is a flow chart of the method for planning the hierarchical and partitioned grid structure of the provincial power grid provided by the present invention.

[0045] by figure 2 The schematic diagram of the structure of Henan power grid is shown as an example, and there are the following embodiments:

[0046] Step 1: Investigate the development planning of the grid load, power supply, and grid structure of each city in the provincial grid, and sort out the development goals of the grid in each city or urban agglomeration;

[0047] Table 1 below shows the load forecast data of Henan Power Grid in 2015, 2020, 2025, and 2030:

[0048] Table 1 Henan Power Grid 2015, 2020, 2025, 2030 load forecast data

[0049]

[0050] Taking the load level in 2015 as an example, the overall power supply demand evaluation index of each city power grid is ...

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Abstract

The present invention provides a method for planning a provincial-level power grid's layered and partitioned grid structure, which includes the following steps: calculating the power supply demand evaluation index of each city or city group power grid, and classifying the development goals of the city power grid; evaluating the power supply requirements of each city or city group grid Typical power supply mode; assess the adaptability of transmission channels between cities or urban agglomerations; assess the capacity demand of the provincial power grid for external power, and judge whether to adopt other power supply methods according to the capacity demand; sort out the previous analysis results to form a provincial The recommended plan for the hierarchical and partitioned grid structure planning of the level grid. This method can not only realize the effective hierarchical planning of the city / urban agglomeration power supply network, the 500kV provincial backbone power grid, and the UHV AC / DC power grid, but also realize the comprehensive coordinated planning among the 1000 / 500 / 220kV three-level power grid , realizing the comprehensive optimization of layered goals and overall goals.

Description

technical field [0001] The invention belongs to the field of safety and stability analysis of power systems, and in particular relates to a planning method for a typical power supply mode of a provincial power grid layered and partitioned. Background technique [0002] With the continuous development of the economy, the demand for energy is becoming more and more urgent. Since the reform and opening up, the Henan power system has made rapid progress. The capacity of the power grid has continued to increase and the voltage level has continued to rise. At present, an AC-DC hybrid power grid has been formed, covering 1000kV, 500kV, 220kV, 110KV, 35kV, 10kV, 0.4kV AC power grids of various voltage levels and ±800kV Hami-Zhengzhou UHV DC and back-to-back Lingbao DC. The hierarchical structure of the power grid divides the power system into several levels from top to bottom according to the voltage level, giving full play to the transmission efficiency of the power grid at all le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
Inventor 唐晓骏田春筝谢岩于琳琳张鑫黄景慧申旭辉杨红旗罗红梅李晶杨琦林俊杰
Owner STATE GRID CORP OF CHINA
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