A method for optimizing frequency regulation parameters of a pumped storage unit and a method for frequency regulation

A technology of pumped storage unit and optimization method, which is applied in the direction of design optimization/simulation, etc., can solve the problem of insufficient frequency regulation efficiency, achieve good frequency regulation capability, improve control parameter optimization accuracy, and high precision effect

Active Publication Date: 2022-03-29
HUAZHONG UNIV OF SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a frequency regulation parameter optimization method and a frequency regulation method of a pumped storage unit, which are used to solve the technical problem that the frequency regulation efficiency is not high enough in the existing pumped storage unit frequency regulation method because only water and machine factors are considered.

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 optimizing frequency regulation parameters of a pumped storage unit and a method for frequency regulation
  • A method for optimizing frequency regulation parameters of a pumped storage unit and a method for frequency regulation
  • A method for optimizing frequency regulation parameters of a pumped storage unit and a method for frequency regulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method 100 for optimizing frequency modulation parameters of a pumped storage unit, such as figure 1 shown, including:

[0039] Step 110, constructing a hydromechanical refined coupling model of the pumped storage unit to be frequency-regulated, the model including a nonlinear pump-turbine, a high-order synchronous generator, and a parallel fractional-order PID governor;

[0040] Step 120: Apply preset frequency perturbation conditions to the hydromechanical refined coupling model, and then use the bacterial group foraging chemotaxis gravitational search algorithm to optimize the frequency modulation control parameters of the governor, so that the hydromechanical refined coupling model can be tuned once The dynamic performance under working conditions satisfies the objective function, and the optimization of frequency modulation parameters under preset frequency disturbance working conditions is completed.

[0041] It should be noted that the parallel fractional-orde...

Embodiment 2

[0089] A method for frequency regulation of a pumped storage unit, comprising:

[0090] Store the frequency modulation control parameters obtained by adopting any frequency modulation parameter optimization method of the pumped storage unit described in the first embodiment above under each frequency disturbance condition of the pumped storage unit to be frequency adjusted;

[0091] Call the frequency modulation control parameters corresponding to the current frequency disturbance condition to control the operation of the pumped storage unit to be frequency modulation.

[0092] This method is a frequency modulation control optimization method based on hydro-mechanical-electrical fine coupling simulation for a pumped storage power station. The frequency modulation accuracy and efficiency are high, so as to shorten the time for the motor system to restore stability after being subjected to frequency disturbance.

[0093] The relevant technical solutions are the same as those in ...

Embodiment 3

[0095] A storage medium, the storage medium stores instructions, and when the computer reads the instructions, the computer is made to execute any method for optimizing the frequency regulation parameters of the pumped storage unit described in the first embodiment above and / or Any frequency regulation method for pumped storage units as described in the second embodiment above.

[0096] The relevant technical solutions are the same as those in Embodiment 1, and will not be repeated here.

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 frequency modulation parameter optimization method and a frequency modulation method of a pumped storage unit. The parameter optimization method includes: constructing a hydromechanical and electrical refined coupling model of the pumped storage unit to be frequency controlled. The model includes a nonlinear pump turbine and a high-order synchronous power generation Mechanical and parallel fractional-order PID governors; apply preset frequency disturbance conditions to the fine coupling model of hydromechanical and electrical, and use the bacterial group foraging chemotaxis gravitational search algorithm to optimize the frequency modulation control parameters of the governor, making the hydromechanical and electrical refinement The dynamic performance of the coupling model under the condition of primary frequency modulation satisfies the objective function. The invention establishes the simulation model of the pumped storage unit to more truly reflect the actual pumped storage unit; optimizes the parameters of the fractional-order PID controller under the frequency disturbance condition of the pumped storage unit, and obtains the primary frequency regulation work of the pumped storage unit. The optimal control parameters for the conditions make the pumped storage unit have good frequency regulation ability, which can effectively improve the stability of the motor operation.

Description

technical field [0001] The invention belongs to the field of frequency regulation of a pumped storage unit, and more specifically relates to a frequency regulation parameter optimization method and a frequency regulation method of a pumped storage unit. Background technique [0002] With the rapid growth of China's power load, the requirements for grid stability are rapidly increasing, and the insufficient peak-shaving capability has become an important problem restricting the development of the power system. The peak regulation and frequency regulation function of the pumped storage unit is very important to maintain the stability of the grid frequency, and the optimization analysis of the primary frequency regulation function and the primary frequency regulation control parameters is becoming more and more urgent. The control optimization problem of hydro-generator units in pumped-storage power stations is a complex hydraulic-mechanical-electrical coupling problem. The fre...

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): G06F30/20
Inventor 许颜贺吕聪伍心周建中
Owner HUAZHONG UNIV OF SCI & TECH
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