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Regional-level source network load system evaluation and verification method and system

A verification method and source-grid-load technology, applied in the field of power system reliability evaluation, can solve problems such as difficulties in power grid maintenance and transformation, and evaluation processes that cannot be comprehensively and accurately evaluated

Inactive Publication Date: 2020-09-22
SOUTHEAST UNIV +1
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Problems solved by technology

[0003] At present, most of the existing evaluation methods are aimed at the transmission network or distribution network, and often only consider the evaluation of a single indicator such as safety or economy.
However, after the system develops to the source-grid-load structure, the existing evaluation process cannot conduct a comprehensive and accurate evaluation, which brings difficulties to the subsequent maintenance and transformation of the power grid

Method used

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  • Regional-level source network load system evaluation and verification method and system
  • Regional-level source network load system evaluation and verification method and system
  • Regional-level source network load system evaluation and verification method and system

Examples

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example

[0312] Taking the actual source-grid-load system in Suzhou as an example, an evaluation model of source-grid-load is established based on the existing grid structure and parameters, and the corresponding data is used for simulation verification.

[0313] The specific implementation of the regional source network load assessment process is as follows:

[0314] a. Evaluate and calculate the economics of the source network load system

[0315] b. Evaluate and calculate the security of the source network load system

[0316] c. Evaluate and calculate the power supply capacity of the source network load system

[0317] d. Use the entropy weight method to modify the index weight

[0318] e. The optimization cycle ends, return to step a

[0319] The evaluation results are shown in the table below

[0320] Table 2 Index weight after modification by entropy weight method

[0321]

[0322]

[0323] After comprehensive calculation, the comprehensive score of the source network...

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Abstract

The invention provides a regional-level source network load system evaluation and verification method and system based on entropy weight analytic hierarchy process. The source network load system is evaluated by combining eight specific indexes of economy, safety and power supply capacity and based on the analytic hierarchy process; on the basis of quantitative evaluation, an entropy weight methodis adopted to automatically correct evaluation weight, quantitative evaluation results of economy, safety and power supply capacity are comprehensively evaluated, comprehensiveness and accuracy of the evaluation results are improved, and a basis is provided for improving economy and safety of a source network load system. According to the method, a quantitative and accurate evaluation result canbe provided for the regional source network load system, and a basis is provided for economical, safe and stable operation of the source network load system.

Description

technical field [0001] The invention belongs to the field of power system reliability evaluation, specifically a system evaluation method and system for multi-angle quantitative evaluation through entropy weight hierarchy analysis and finally comprehensive evaluation. Background technique [0002] In recent years, with the development of new energy and active distribution network technology, the entire power system can be dispatched and controlled from the power source, grid and load side. In response to the access of distributed power and energy storage devices with a high penetration rate, researchers have proposed the concept of a source-grid-load system. The source network load system refers to the safe, efficient and economical improvement of the power balance capability of the power system through a variety of interactive methods among the power supply, power grid and load. The use of source-grid-load systems for power scheduling has been tried and promoted in many pl...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 马子文陈中黄学良刘贞瑶陈轩
Owner SOUTHEAST UNIV
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