Provincial level power grid layering and partitioning typical power supply mode planning method

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

Active Publication Date: 2015-11-25
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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  • Provincial level power grid layering and partitioning typical power supply mode planning method
  • Provincial level power grid layering and partitioning typical power supply mode planning method
  • Provincial level power grid layering and partitioning typical power supply mode planning method

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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 invention provides a provincial level power grid laying and partitioning grid structure planning method, and includes the steps of: calculating power supply demand evaluation indexes of a power grid of each city or a city group, and performing city power grid development goal classification; evaluating a typical power supply mode of each city or the city group; evaluating adaptation of transmission channels among the cities or the city group; evaluating a capacity requirement of a provincial level power grid for external electricity, and judging whether to adopt other power supply mode according to the capacity requirement; and combing an analysis result, and forming a provincial level power grid layering and partitioning grid structure planning recommendation scheme. The method can realize effective layering planning of a city/city group power supply network, a 500kV provincial network backbone power grid and an ultrahigh-voltage direct current drop-point power grid, and can also realize comprehensive coordinated planning of 1000/500/220kV three-level power grids, thereby realizing comprehensive optimization of a layering objective and an overall objective.

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 Applications(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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