EN / 中文

thermal actuator, thermostatic element, thermostatic valve, thermostatic radiator, thermoelectric actuator

  • Home
  • Company
    • About Us
    • Product Introduction
    • Application & Solution
  • Innovation
  • Product
    • Customized Thermal Actuator/Valve
      • Thermal Actuator for Marine Solution
      • TV/HAT Temperature Control Valve
      • Thermoactuator
    • T&P Relief Valve
      • Standard T&P Relief Valve
      • T&P Relief Valve for Air Compressor
      • T&P Relief Valve for Steam Boiler
    • Probe for T&P valve
    • Thermoelectric Actuator
      • 500 series thermoelectric actuator
      • 501 series thermoelectric actuator
      • 504 series thermoelectric actuator
    • Thermostatic Control Valve
      • 300 series
      • 301 series
    • Thermostatic Mixing Valve
      • 0829
      • 5464
    • Freeze Protection Valve
    • VAV Diffuser Thermostatic Element
    • Automobile Thermal Control
      • Auto Engine Thermal Control
      • Diesel Filter Element
  • News
  • Contact
  • Chinese
  • Home
  • News
  • thermal actuator News
  • Drawing Method of Root Locus of Dahlin Controller
 

Drawing Method of Root Locus of Dahlin Controller

by admin / 2019/10/14 / Published in thermal actuator News

Absrtact: The control mechanism of Dahlin controller is reinterpreted.

Drawing Method of Root Locus of Dahlin Controller_no.111

  The incident angle of the root locus of the Dahlin controller is calculated by using the vector analysis method. The relationship between the pole radius and the pole radius of the Dahlin controller and the angle between the positive and real axes is studied.
A computer plotting method for root locus of Dahlin controller is presented. In addition, the position of the complex poles of the Dahlin controller can be determined by drawing. The Dahlin controller [1] is used to control the first-order time-delay process and has good control effect. The Dahlin controller is simple to use and the expected closed-loop time constant is its only setting parameter. Document [2] studies the root locus of Dahlin controller, thermostatic element which takes the expected closed-loop time constant as the parameter. By using the root locus property of Dahlin controller, the paper draws the following conclusion: for any order Dahlin controller, the output of the controller may produce ringing phenomenon when there is model mismatch and the expected closed-loop time constant is small; the ringing phenomenon can be suppressed by increasing the expected closed-loop time constant. In reference [5], the robust stability of Dahlin control systems with gain mismatch, time constant mismatch and delay mismatch is studied.
The internal model structure of Dahlin control system is studied in reference [6].
In this paper, the control mechanism of Dahlin controller is redefined according to the existing root locus properties.
The incident angle of the root locus of the Dahlin controller is calculated by using the vector analysis method. The relationship between the pole radius and the pole radius of the Dahlin controller and the angle between the positive and real axes is studied. The computer plotting method of root locus of Dahlin controller is given.

Drawing Method of Root Locus of Dahlin Controller_no.162

  In addition, the position of the complex poles of the Dahlin controller can be determined by drawing.

ARCHIVES

  • October 2019
  • September 2019
  • August 2019
  • April 2019
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • April 2018
  • January 2018
  • October 2017

CATEGORIES

  • News
  • Technology
  • thermal actuator News

COMPANY

  • About Us
  • Product Introduction
  • Innovation
  • Application & Solution
  • Terms of Use

PRODUCT

  • Customized Thermal Actuator/Valve
    • Thermal Actuator for Marine Solution
    • TV/HAT Temperature Control Valve
    • Thermoactuator
  • T&P Relief Valve
    • Standard T&P Relief Valve
    • T&P Relief Valve for Air Compressor
    • T&P Relief Valve for Steam Boiler
  • Probe for T&P valve
  • Thermoelectric Actuator
  • Thermostatic Control Valve
    • 300 series
    • 301 series
  • Thermostatic Mixing Valve
  • Freeze Protection Valve
  • VAV Diffuser Thermostatic Element
  • Automobile Thermal Control
    • Auto Engine Thermal Control
    • Diesel Filter Element

CONTACT

Tel.: (+86) 574 8805 9937

Mob./Whatsapp: (+86) 180 6927 2889

Email: sales@wisdom-thermostats.com

Zhejiang WISDOM Thermostats Technologies Co., Ltd.

Add.: No. 615 Xiaogao West Road, Ningbo 315000, China

© 2015 Zhejiang Wisdom Thermostats Technologies Co., Ltd. all rights reserved.

TOP