Supercharge Your Innovation With Domain-Expert AI Agents!

Online monitoring method of reactive power control capability of wind power plant

A wind farm and power control technology, applied in wind power generation, reactive power compensation, AC network voltage adjustment, etc.

Active Publication Date: 2020-05-08
ZHEJIANG UNIV +1
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most renewable new energy power generation bases maintain unit power factor operation, that is, they do not exchange reactive power with the outside world. Influenced by fluctuations, the voltage stability problem of the power system containing renewable new energy will become more and more serious. Therefore, as a potential reactive power source of the system, the renewable new energy power generation base must participate in the comprehensive reactive power adjustment and adjustment of the system. voltage control 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
  • Online monitoring method of reactive power control capability of wind power plant
  • Online monitoring method of reactive power control capability of wind power plant
  • Online monitoring method of reactive power control capability of wind power plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0084] In the following, the present invention takes an actual wind farm in China as an example to illustrate the application effect of the present invention in detail. The wind farm contains 33 double-fed wind turbines with a rated power of 1.5MW, and is connected to a properly modified IEEE-9 node power system. The measured data on May 18, 2019 was selected as the test data, including the measured wind speed of each wind turbine inside the wind farm (one measurement point every 5 minutes, a total of 288 measurement points) and the real-time active output of each wind turbine. .

[0085] figure 1 The implementation process of the content of the present invention is shown. Based on the aggregation evaluation model of wind farm reactive power control capability and the online monitoring model of wind farm reactive power control capability, according to the gradually accumulated relevant operation data, the evaluation error and evaluation consumption in the daily operation sce...

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 an online monitoring method of a reactive power control capability of a wind power plant. The method comprises the following steps: firstly, constructing a wind power plant reactive power control capability aggregation evaluation model in combination with wind power plant operation state information measured by a field measurement mutual inductor; then selecting a relatively small reference point to update a threshold parameter based on previous application experience to construct a wind power plant reactive power control capability online monitoring model; on the basisof the above model, according to related operation data accumulated step by step, fitting a quantitative relation of evaluation errors and evaluation time consumption in a daily operation scene of the wind power plant with respect to threshold parameters through a data driving method; and finally, constructing a reference point updating threshold parameter optimization model and solving to obtainan optimal value for evaluating a dynamic updating threshold of a reference point so as to realize an optimal operation effect of the wind power plant reactive power control capability online monitoring model.

Description

technical field [0001] The invention belongs to the field of reactive power optimization control of grid-connected voltage generated by renewable new energy, and specifically relates to an online monitoring method for reactive power control capability of a wind farm. Background technique [0002] Among the many challenges faced by large-scale development and utilization of renewable energy, voltage stability is particularly prominent. Further improving the reactive power and voltage management capabilities of renewable new energy power grid-connected systems is an important content and necessary condition for building a strong smart grid. At present, most renewable new energy power generation bases maintain unit power factor operation, that is, they do not exchange reactive power with the outside world. Influenced by fluctuations, the voltage stability problem of the power system containing renewable new energy will become more and more serious. Therefore, as a potential 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
IPC IPC(8): H02J3/16H02J3/38H02J3/50
CPCH02J3/16H02J3/50Y02E10/76Y02E40/30
Inventor 耿光超张宽江全元王衡张锋于鹤洋
Owner ZHEJIANG UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More