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Power distribution network contact effectiveness evaluation method

An effective and distribution network technology, applied in the direction of electrical digital data processing, instruments, calculations, etc., can solve problems such as frequent power outages, difficult load transfer, low voltage, etc., to achieve good service and enhance the competitiveness of the industry

Inactive Publication Date: 2019-10-01
STATE GRID ZHEJIANG HAIYAN POWER SUPPLY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve many problems such as difficulty in load transfer, low voltage, too long power transmission radius, frequent power outages, and limited access to new energy caused by low distribution network connection effectiveness, the present invention proposes a distribution network connection effective Using multiple data platforms such as power SCADA system (that is, data acquisition and monitoring and control system), power consumption information collection system, PMS system (that is, engineering production management system), OMS system (that is, operation management system) to collect power outage frequency , new energy power generation and other multi-dimensional data

Method used

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  • Power distribution network contact effectiveness evaluation method
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  • Power distribution network contact effectiveness evaluation method

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Embodiment

[0040] Example: such as figure 1 As shown, a distribution network linkage effectiveness assessment method includes the following steps:

[0041] Step 1: data acquisition;

[0042] Step 2: Data preprocessing;

[0043] Step 3: Build an association model;

[0044] Step 4: Value Analysis;

[0045] Step 5: Data visualization display.

[0046]The data acquisition includes the line load data obtained from the electric power SCADA system, the daily valley voltage data of the distribution transformer obtained from the distribution network-related information system, and access to the PMS system and the GIS system database to obtain part of the ledger information data of the power distribution network line , Obtain the detailed information and data of power outages of public and distribution transformers every month from the distribution network power consumption information collection system. In this embodiment, the analysis is carried out from the five perspectives of distributio...

specific Embodiment

[0072] Through the analysis of the four perspectives of open capacity, voltage quality, protection sensitivity, and power supply reliability, a 10 (20) kV distribution network connection effectiveness evaluation system is constructed, and various indicators that affect the connection effectiveness are sorted out. A distribution network connection A specific embodiment of the effectiveness evaluation method is as follows:

[0073] In order to facilitate the calculation, the specific indicators are replaced by letters, as shown in Table 2.

[0074] Table 2. Correspondence between indicators and letters

[0075] letter index letter index letter index a line load e line current i Contact Availability b line length f Main transformer load j Planned Outage Information c public variable voltage g Main transformer N-1 m Public transformer power outage information d Variable voltage k line impedance p Special change po...

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Abstract

The invention discloses a power distribution network contact effectiveness evaluation method. The power distribution network contact effectiveness evaluation method comprises five steps: step 1, dataacquisition; step 2, data preprocessing; step 3, construction of an association model; step 4, value analysis; and step 5, visual displaying of the data. The power distribution network contact effectiveness evaluation method has the advantages that multi-dimensional data such as power failure frequency and new energy power generation are acquired by utilizing multiple data platforms such as an electric SCADA system, a power utilization information acquisition system, a PMS system and an OMS system; analysis is carried out from five perspectives of distribution line open capacity, voltage quality, protection sensitivity, power supply reliability and new energy access; and an existing power distribution network frame is diagnosed and deeply excavated, so that the contact perception capability of the power distribution network is improved, and limited resources are utilized, and support is provided for contact construction of the power distribution network to the maximum extent, and powercustomers are better served, and the industry competitiveness of companies in the incremental power distribution network market is improved, and a virtuous circle is formed.

Description

technical field [0001] The invention relates to the field of intelligent distribution network evaluation, in particular to a distribution network connection effectiveness evaluation method. Background technique [0002] The distribution grid is the last link in the production, transmission and utilization of electric energy. It is closely connected with users and is the basis for ensuring reliable and high-quality power supply. With the development of smart distribution network construction, the popularization and application of technology platforms such as SCADA system, GIS system, PMS system, big data, and cloud computing, and the continuous integration of new forms of energy such as distributed power and micro-grid, its strategic control and management As the difficulty increases, how to improve the safety, reliability, economy, efficiency, adaptability and cleanliness of smart distribution network dispatching control are all hot issues to be solved. To build a reasonable...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06K9/62
CPCG06F30/20G06F18/21
Inventor 刘海林雷健新潘炫霖张依辰冯朝力雷虹云陆建琴陆萍曹志勇李豹孙帅吴桂萍叶宇清龚书能周杰徐笛胡景博吴炳照张弘弦
Owner STATE GRID ZHEJIANG HAIYAN POWER SUPPLY
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