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Power distribution network partition method based on maximum power supply capability

A technology with maximum power supply capacity and power supply capacity, applied to electrical components, circuit devices, AC network circuits, etc., can solve problems such as large subjective influence, low efficiency, and large deviation

Active Publication Date: 2015-08-12
STATE GRID CORP OF CHINA +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The purpose of the present invention is to provide a distribution network zoning method based on the maximum power supply capacity, aiming to solve the problems that the traditional distribution network zoning research mainly relies on manual experience, has a large subjective influence, large deviation, and low efficiency

Method used

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  • Power distribution network partition method based on maximum power supply capability
  • Power distribution network partition method based on maximum power supply capability
  • Power distribution network partition method based on maximum power supply capability

Examples

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specific Embodiment

[0082] 1. Overview of calculation examples:

[0083] like figure 2 As shown, this calculation example is a distribution network with 10 substations-20 main transformers-23 inter-substation connections. There are two interconnected main transformers in each substation, and the capacity of the main transformers is 40MVA. The capacity of all inter-substation connections is considered sufficient, which is the same as the capacity of the main transformer. The voltage level of each connection in the example is 10kV, which is obtained after simplifying the complex inter-station connections of the actual power grid.

[0084] 2. The optimal partition scheme based on the maximum power supply capacity is specifically implemented as follows:

[0085] Step 1: Number the main transformers 1, 2, ..., 20, and number the substations A, B, ... J;

[0086] Step 2, determine the number of distribution network partitions 2 according to the actual situation;

[0087] Step 3 and step 4, number e...

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Abstract

The invention discloses a power distribution network partition method based on maximum power supply capability. The optimal partition concept can be provided, and the power distribution system maximum power supply capability can be used as the theoretical basis, and then the contact validity theory can be adopted in a combined way, and by adopting the verification of the calculation examples of the actual power grid, a series of workable proposals can be finally acquired, and can be used to guide the optimization and planning work of the city power distribution system. The spare capacity can be reduced, the device utilization rate can be improved, and the higher stability can be provided. The power distribution network partition method is advantageous in that the accurate optimal partition scheme can be acquired, the partition can be faster, and the distribution network planning can be faster and more effective.

Description

technical field [0001] The invention belongs to the technical field of power distribution systems, and in particular relates to a distribution network partition method based on maximum power supply capacity. Background technique [0002] For a long time, the power grids in many cities in my country have suffered from insufficient power supply capacity, uncertain network transfer capabilities, low utilization of power grid equipment, unbalanced loads, and large losses. The power system is facing increasingly heavy planning tasks, which put forward higher requirements for the distribution network, and the optimization of power supply partitions in urban power distribution networks has become a problem worthy of attention. [0003] The traditional distribution network zoning research mainly relies on manual experience. This method has a great subjective influence, and many important factors, such as the change of the power supply capacity of the entire distribution network, hav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/001H02J2203/20
Inventor 李晓辉谭向红袁世强刘云龚成虎郑卫洪肖峻
Owner STATE GRID CORP OF CHINA
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