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

A test system and method for a wind farm power control strategy

A power control and testing system technology, applied in the direction of electrical testing/monitoring, etc., can solve the problems of increasing the failure of the control system to put into operation, and the hidden dangers of the safe and stable operation of the power system, so as to increase the probability of successful putting into operation, improve operating efficiency and safety The effect of improving the control accuracy

Active Publication Date: 2016-08-17
STATE GRID CORP OF CHINA +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no mature quasi-real-time closed-loop test system for wind farm active / reactive power integrated control, which can verify the correctness and rationality of the control strategy before the wind farm active / reactive power control system is put into operation. It will increase the probability of failure of the control system in operation to a certain extent, and also bring hidden dangers to the safe and stable operation of the power system.

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 test system and method for a wind farm power control strategy
  • A test system and method for a wind farm power control strategy
  • A test system and method for a wind farm power control strategy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1: Active power test

[0060] Test conditions: the initial dispatch active power plan value is 85MW; when t=200s, the dispatch active power plan changes to 55MW; when t=400s, the dispatch active power plan changes to 70MW; when t=600s, the wind farm active power plan changes to 45MW. The test result is obtained, and the active power curve of the grid connection point is given as Image 6 Shown. It can be seen from the test curve that the active power control system of the wind farm can correctly control the active power of the grid connection point to the planned value according to the command value of the dispatch plan. The response speed of the active power control system of the wind turbine is affected by its own active power control strategy. If the active power of the wind turbine is controlled by the pitch system only, the response speed of the active control system of the wind turbine will be slow, and the system will take a relatively long time to run to t...

Embodiment 2

[0061] Example 2: Reactive power test

[0062] Test conditions: the initial dispatching reactive power plan value is 10MVar; when t=200s, the dispatching reactive power plan value changes to 7.5MVar; when t=400s, the dispatching reactive power plan value changes to 2MVar; when t=600s, the dispatching reactive power plan value The planned value changes to -3.75MVar; when t=900s, the planned value of dispatching reactive power changes to -7.5MVar. The test result is obtained, and the reactive power curve of the grid connection point is given as Figure 7 Shown. It can be seen from the test curve that the reactive power control system of the wind farm can correctly control the reactive power of the grid connection point to the planned value according to the dispatching instructions. When t=200s, the given value of the reactive power of the wind farm changes from 10MVar to 7.5MVar. At this time, the reactive power reference value of the reactive power control system changes, and the...

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 provides a test system and method for a wind farm power control strategy. The wind farm power control strategy formulation module of the system includes a network data receiving / sending module, a data analysis module, a data buffer module, and a data fault-tolerant module connected sequentially. , active / reactive power control module and real-time data interaction module, the output end of the data fault-tolerant module is connected to the input end of the real-time data interaction module; the wind farm power control strategy formulation module communicates with the wind farm power grid simulation module through the network data receiving / sending module Or the actual grid interface module for information exchange. The system and its corresponding method receive wind farm operation information in real time, and periodically send the power setting values ​​of the wind farm unit and reactive power compensation equipment to the corresponding wind turbine unit and reactive power compensation device in the field according to different power control strategies, and finally form a control system. Closed-loop test of the control performance of the active / reactive power control system of the wind farm to improve the success rate of on-site operation.

Description

Technical field [0001] The invention relates to a method in the field of wind farm control in new energy power generation technology, in particular to a test system and method for a wind farm power control strategy. Background technique [0002] In recent years, wind power has developed rapidly, and the capacity of grid-connected wind farms has continued to increase. The voltage level of wind farms connected to the grid is getting higher and higher. According to the national energy strategy plan, by 2020, a 90-megawatt wind power base will be built with such a large capacity. The integration of wind power into the grid will bring many new problems to the stable operation of the power system. In order to cope with these problems, a number of technical standards to guide wind power grid integration and production operation have been promulgated one after another. In 2012, the national standard GB / T19963-2012 "Technical Regulations for Connecting Wind Farms to Power Systems" was re...

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): G05B23/02
Inventor 钱敏慧姜达军陈宁赵大伟朱凌志张磊施涛罗芳曲立楠王湘艳韩华玲葛路明赵亮
Owner STATE GRID CORP OF CHINA
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