Method for evaluating maximum permeability of distributed generation based on time scene access analysis

A technology of distributed power supply and maximum penetration rate, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems that cannot truly reflect the ability of the distribution network to accept distributed power sources, and reduce the analysis workload. Ensure assessment accuracy, adaptive effects

Active Publication Date: 2013-10-09
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0004] At present, the evaluation of the maximum penetration rate of distributed power generation is generally determined according to relevant technical guidelines or based on the experience of planners. The evaluation results cannot truly reflect the ability of the distribution network to accommodate distributed power generation. Therefore, a systematic and scientific distribution system is urgently needed. Evaluating method of maximum penetration rate of type power supply

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  • Method for evaluating maximum permeability of distributed generation based on time scene access analysis
  • Method for evaluating maximum permeability of distributed generation based on time scene access analysis
  • Method for evaluating maximum permeability of distributed generation based on time scene access analysis

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0039] figure 1 It is a flow chart of the evaluation method for the maximum penetration rate of distributed power generation based on the admission analysis of time scenarios.

[0040] This example takes a medium-sized city in the north as an example, selects a typical 10kV line, and considers that two distributed power sources, photovoltaic (inverter type) and wind turbine (synchronous type) may be connected in the future, and the line load characteristics and climate change characteristics are both With reference to the actual load data and climate data in this area, the maximum penetration rate of distributed power generation based on time scenario access analysis is evaluated for this line.

[0041] 1. Analyze the load characteristics of the power grid

[0042] Analyze the annual load characteristics and typical daily load characteristics of this area, ...

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Abstract

The invention provides a method for evaluating the maximum permeability of a distributed generation based on the time scene access analysis. The method for evaluating the maximum permeability of the distributed generation based on the time scene access analysis comprises the steps of analyzing the load characteristic of a power grid and the wind generation characteristic of the distributed generation, selecting a time scene of the power grid, analyzing the access capacity of the power grid in the time scene of the power grid, and comprehensively determining the maximum permeability of the distributed generation. According to the method for evaluating the maximum permeability of the distributed generation based on the time scene access analysis, the load characteristic of the power grid and the wind generation characteristic of the distributed generation are analyzed, the time scene of the power grid is selected, the access capacity of the power grid is analyzed in the time scene of the power grid, an evaluation result of the maximum permeability of the distributed generation is then obtained, and therefore evaluation of the access capacity of the distributed generation is well achieved.

Description

technical field [0001] The invention belongs to the technical field of distribution network planning, and in particular relates to a method for evaluating the maximum penetration rate of distributed power sources based on time scene access analysis. Background technique [0002] The grid-connected operation of distributed energy will make the traditional distribution network change from a radial passive network to an active network, which changes the original power flow distribution and protection settings in the power system. At the same time, due to the characteristics of large number, wide range, small capacity, randomness, and intermittent nature of distributed power, with the large-scale application of distributed power, distribution network planning and operation will be significantly affected. [0003] Distributed power generation penetration rate (Penetration Level, PL) is an important index to measure the impact of distributed power generation on distribution networ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
Inventor 赵明欣刘思革崔艳妍惠慧刘伟苏剑
Owner STATE GRID CORP OF CHINA
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