Power distribution network equivalent method considering multiple random factors

A technique of random factor and equivalent method, applied in the field of modeling and convolution calculation of outage table, which can solve the problem of not considering the uncertainty of random factors in the distribution network

Active Publication Date: 2017-11-17
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, random factors such as renewable energy, energy storage, and controllable loads are mostly connected to the power system from the...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Power distribution network equivalent method considering multiple random factors
  • Power distribution network equivalent method considering multiple random factors
  • Power distribution network equivalent method considering multiple random factors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] The following takes a test distribution network as an example to introduce the present invention in detail, but it should be understood that the present invention is not limited thereto, and is also applicable to the equivalent calculation of other distribution networks containing various random factors in power grid planning .

[0045] Such as Figure 5 As shown, the distribution network equivalent method considering multiple random factors provided by the present invention includes the following steps (random factors in this example specifically refer to renewable energy, energy storage and lo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a power distribution network equivalent method considering multiple random factors. The method comprises the steps that models are built for renewable energy, stored energy and load in a power distribution network; by means of the built mathematic models, output curves or power requirement curves of the renewable energy, the stored energy and the load in a time period are simulated; the output curves or power requirement curves of the random factors such as the renewable energy, the stored energy and the load are discretized by selecting appropriate step sizes, and outage tables of the renewable energy, the stored energy and the load are calculated; and finally, convolution calculation is conducted on the outage tables of the random factors in the power distribution network, and a power distribution network equivalent model in a general outage table form can be obtained. According to the equivalent method, the nondeterminacy of the renewable energy, the stored energy output and the load demand in the power distribution network can be well reflected, and the built equivalent model can conduct related calculation of power grid planning by combining an analysis method or a simulation method and has the good generality.

Description

technical field [0001] The invention belongs to the field of power grid planning, and relates to a distribution network equivalent method considering various random factors such as renewable energy, energy storage and controllable loads (hereinafter referred to as "random factors"), and particularly relates to the output characteristics of various random factors The modeling and convolution computation of outage tables. Background technique [0002] Power grid planning (i.e., transmission network planning) is an important part of power system planning. Its work is to determine the optimal grid structure according to the load growth and power supply planning during the planning period to meet the needs of economical and reliable power transmission. Traditional power grid planning is completed under the conditions of power planning capacity, planning location, commissioning time and forecasted load. [0003] In recent years, due to the depletion of fossil energy such as oil, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 周保荣别朝红王彤秦鹏王滔连浩然侯云婷胡源
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap