Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for evaluating the reliability of large power grids with wind farms

A technology for large power grids and wind farms, which is applied in the field of reliability evaluation of large power grids. Uniformity and other issues

Inactive Publication Date: 2015-08-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the intermittent and random nature of wind energy, the distribution in time and space is very uneven. The power output of wind farms fluctuates with changes in wind energy resources, time and space. It has a great impact on the safe and stable operation of the power system, especially on the reliability of the large power grid. The traditional reliability evaluation model and index system of the large power grid cannot meet the requirements. It is necessary to propose a new wind farm Evaluation Method of Large Power Grid Reliability

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
  • A method for evaluating the reliability of large power grids with wind farms
  • A method for evaluating the reliability of large power grids with wind farms
  • A method for evaluating the reliability of large power grids with wind farms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0084] The invention mainly proposes a method for evaluating the reliability of a large power grid including a wind farm. The specific steps of this evaluation method are as follows: figure 1 As shown, the specific steps of the method are as follows:

[0085] Step 1: Establish a time-series power output model of the wind farm;

[0086] Such as figure 2 Shown is the flowchart of the establishment method of the time series power output model of the wind farm, and the specific steps are as follows:

[0087] 11) Enter the basic parameter data of the wind turbine; the basic parameter data includes the failure rate and repair rate of the wind turbine, the number of wind turbines in the wind farm, and the number of years of simulation;

[0088] 12) Count a large amount of historical wind speed data, establish an ARMA wind speed prediction model, ...

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 method for evaluating reliability of a large power grid comprising a wind power station, which belongs to the technical field of evaluation on reliability of a power system. The method comprises the following steps of: firstly, establishing a wind power station time sequence power output model; then combining the wind power station time sequence power output model and a large power grid system to establish a wind power station large power grid reliability model; establishing an index system for evaluating the reliability of the large power grid comprising the wind power station; finally, evaluating the reliability of the large power grid comprising the wind power station by applying a sequential Monte Carlo simulation method. According to the invention, the related reliability model and index system are respectively established from the power grid side and the wind power station side for balancing influence of switching-in of the wind power station on reliability of the large power grid; the integral reliability condition of the system and contribution of the wind power station to the adequacy of the large power grid can be more sufficiently reflected.

Description

technical field [0001] The invention belongs to the technical field of power system reliability evaluation, and in particular relates to a method for evaluating the reliability of a large power grid including wind farms. Background technique [0002] With the increasing demand for energy in the world and the development and utilization of renewable resources, wind energy is becoming more and more important as a renewable and clean new energy. Due to the mature technology and relatively low cost of power generation, wind power has become the most important alternative form of conventional energy. Due to the intermittent and random nature of wind energy, the distribution in time and space is very uneven. The power output of wind farms fluctuates with changes in wind energy resources, time and space. It has a great impact on the safe and stable operation of the power system, especially on the reliability of the large power grid. The traditional reliability evaluation model and...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
Inventor 毛安家高忠旭黄昀思陈得治宋云亭
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com