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

A Optimal Method of Turbine Adjustment System Control Parameters

A technology for regulating systems and controlling parameters, applied in control/regulating systems, general control systems, instruments, etc., can solve the problems of premature PSO algorithm, slow evolution, and inability to obtain control parameters of hydraulic turbine regulating systems

Active Publication Date: 2018-02-23
HUAZHONG UNIV OF SCI & TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gradient method requires the objective function to be continuously differentiable; the simplex method is greatly affected by the initial value and the calculation step size, and it is easy to converge to a local optimal solution; the genetic algorithm needs to perform replication, crossover and mutation operations, the evolution speed is slow, and it is easy to produce premature Convergence, and its performance has a large dependence on parameters; PSO algorithm has shortcomings such as premature maturity and local minima in solving complex optimization problems
These defects may cause the algorithm to fail to obtain the optimal control parameters of the turbine regulation 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 Optimal Method of Turbine Adjustment System Control Parameters
  • A Optimal Method of Turbine Adjustment System Control Parameters
  • A Optimal Method of Turbine Adjustment System Control Parameters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0046] The present invention relates to a control parameter optimization of a water turbine regulation system, the system includes a PID controller, an electro-hydraulic servo system, a water diversion system, a water turbine, a generator and a load, such as figure 1 shown. Among them, the electro-hydraulic servo system, water diversion system, water turbine, generator and load constitute the c...

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 preferred method of a water turbine adjustment system control parameter to carry out preferred selection of a PID control parameter in a water turbine adjustment system. A model is established according to the water turbine adjustment system, then a target function with a PID controller control parameter as a preferred variation is established according to a simulation system, and the preferred method designed by the invention is used to solve the target function to obtain an optimal PID control parameter. According to the preferred method of the water turbine adjustment system control parameter, a novel heuristic optimization algorithm is used to optimize the target function, a better target function value can be searched, and an obtained solution represents a better PID control parameter. According to the better PID control parameter, the frequency deviation of the water turbine adjustment system is small, the adjustment speed is fast, a system response curve is smooth, and the system adjustment quality is high.

Description

technical field [0001] The invention belongs to the technical field of hydroelectric power generation, and more specifically relates to a method for optimizing control parameters of a water turbine regulating system, which is used for optimizing the control parameters of a controller in the water turbine regulating system. Background technique [0002] The hydraulic turbine regulating system is the core control system of the hydroelectric unit, which is responsible for stabilizing the frequency of the unit and regulating the power of the unit. In engineering applications, the control law adopted by this system is generally proportional-integral-derivative controller (Proportion Integration Differentiation, PID) control. PID control parameters have a decisive impact on the adjustment quality and dynamic response indicators of the unit, how to optimize the PID parameters has become a difficult problem in engineering applications. In actual operation, PID control parameters gen...

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): G05B17/02
CPCG05B17/02
Inventor 李超顺赵志高汪赞斌李如海杨兴昭
Owner HUAZHONG UNIV OF SCI & TECH
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