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Unitization system medium voltage distribution network planning method based on load correlation coefficient

A technology of correlation coefficient and power grid planning, applied in the direction of load forecasting, electrical components, circuit devices, etc. in the AC network, it can solve the problem of difficulty in adding new power points, and improve the utilization rate of power grid equipment and the economic benefits of the power grid. Effect

Inactive Publication Date: 2017-03-08
STATE GRID XINJIANG ELECTRIC POWER CO URUMQI ELECTRIC POWER SUPPLY CO +1
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Problems solved by technology

With the further scarcity of land resources in built-up areas, it is difficult to increase the distribution of new power points, so the method of ensuring reliability and load development requirements by increasing system reserve capacity cannot be implemented

Method used

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  • Unitization system medium voltage distribution network planning method based on load correlation coefficient
  • Unitization system medium voltage distribution network planning method based on load correlation coefficient

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Embodiment Construction

[0044] The present application is not limited by the following examples, and specific implementation manners can be determined according to the technical solutions of the present application and actual conditions.

[0045] The method for planning the medium-voltage distribution network based on the load correlation coefficient of the unit system includes the following steps;

[0046] The first step is to rely on the power quality online monitoring system to collect data to obtain the daily, quarterly and annual load characteristics of different users, and to establish user file information;

[0047] The second step is to connect with government departments, collect data, and grasp the nature and scale of planning and construction of each block in the city;

[0048] The third step is to carry out spatial load forecasting in the planning area based on the power demand of the plot (urban control plan) in combination with the typical load forecasting model, and divide the medium-v...

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Abstract

The invention relates to a medium voltage distribution network planning method for an electric power system, and particularly relates to a unitization system medium voltage distribution network planning method based on a load correlation coefficient. The unitization system medium voltage distribution network planning method comprises the following steps: 1, data collection and acquisition of daily load characteristic, quarter load characteristics and annual load characteristics of different users are performed based on an electric energy mass online monitoring system, and user archival information is established; 2, a government department links and collects documents and masters planning construction property and scale of each regional block of a city; and 3, oriented by power utilization requirement (based on urban control and regulation) of land blocks, a comprehensive typical load prediction model is established. By adoption of the technical scheme, the problems of low load rate, high construction investment, difficulty in land applying, and the like caused by insufficient power utilization requirement classification and analysis and the fact that the load development requirement is satisfied by only increasing system capacity existing in the prior art are solved; the power grid equipment utilization rate and power grid economic benefit can be greatly improved; and reference basis is provided for the power grid investment and construction.

Description

technical field [0001] The present application relates to a method for planning a medium-voltage distribution network in a power system, in particular to a method for planning a medium-voltage distribution network based on a load correlation coefficient in a unit system. Background technique [0002] Due to historical development reasons, my country's medium and low voltage distribution network is basically built following the needs of users, and is greatly influenced by investors. Its grid structure and power supply mode have always lacked unified planning and standardized management. The distribution network planning method widely used in my country is based on the Failure Mode and Effects Analysis (FEMA) or "N-k" safety criterion planning method, that is, the whole system is studied on a case-by-case basis, and k refers to the system in It can still maintain normal operation after losing k devices. Therefore, the distribution network planning method in my country is basic...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J3/003H02J2203/20
Inventor 白霄磊王刚赵磊赛尔江黄擎李秀芹欧阳曙光师璐张振亮陈威伊杨杰
Owner STATE GRID XINJIANG ELECTRIC POWER CO URUMQI ELECTRIC POWER SUPPLY CO
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