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

A method and device for tuning pid parameters of a speed control system of a hydroelectric unit

A hydroelectric unit and parameter tuning technology, which is used in the control of electromechanical transmissions, control systems, and generators to optimize dynamic characteristics and avoid ultra-low frequency oscillations.

Active Publication Date: 2020-05-26
CHINA SOUTHERN POWER GRID COMPANY +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a PID parameter setting method and device for the hydroelectric unit speed control system, which can effectively solve the problem of how to reasonably configure the hydroelectric unit speed control system parameters in the medium-scale power grid in the prior art, and can effectively optimize the dynamic frequency of the power grid characteristics, to avoid the problem of ultra-low frequency oscillation

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 and device for tuning pid parameters of a speed control system of a hydroelectric unit
  • A method and device for tuning pid parameters of a speed control system of a hydroelectric unit
  • A method and device for tuning pid parameters of a speed control system of a hydroelectric unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] see figure 1 , is a schematic flowchart of a method for setting PID parameters of a hydroelectric unit speed control system provided by an embodiment of the present invention, including the steps:

[0052] S11. Use a preset simulation model to perform time-domain simulation on the hydroelectric unit, and determine the magnification of the proportional link and the corresponding oscillation period when the hydroelectric unit rea...

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 present invention discloses a hydroelectric generating set speed regulation system PID parameter setting method and device. The method comprises the steps of: employing a preset simulation model to perform simulation of a hydroelectric generating set to determine proportional component magnification times when the hydroelectric generating set reaches a critical stable state and a correspondingvibration period; according to the proportional component magnification times when the hydroelectric generating set reaches the critical stable state and the corresponding vibration period, calculating the proportional component magnification times in the PID parameters and differentiation component magnification times; according to the proportional component magnification times in the PID parameters and the differentiation component magnification times, employing the preset simulation model to perform simulation, and determining integration component magnification times when the hydroelectric generating set reaches the critical stable state as the integration component magnification times in the PID parameter; and according to the proportional component magnification times, the differentiation component magnification times and the integration component magnification times in the PID parameters, employing the preset simulation model to perform simulation and verification so as to complete setting of the PID parameters.

Description

technical field [0001] The invention relates to the technical field of power system machine network coordination, in particular to a PID parameter setting method and a device for a speed regulating system of a hydroelectric unit. Background technique [0002] The parameter configuration of the speed control system of the hydroelectric unit has an important influence on the dynamic characteristics of the frequency of the power system. Power systems of different scales need to be configured with different parameters of the speed control system of the hydroelectric unit. After the large-scale power grid implements asynchronous networking, the power grid in a certain area that originally belonged to the large-scale power grid will be separated from the large-scale power grid and run asynchronously. After asynchronous operation, if the installed capacity and load of the regional power grid are greatly reduced compared with the large-scale power grid, the original speed regulation...

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): H02P21/00
CPCH02P21/0003
Inventor 周剑刘蔚徐光虎周毓敏吴云亮甄鸿越周挺辉陈刚江出阳蔡东阳
Owner CHINA SOUTHERN POWER GRID COMPANY
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