4.4 Article

Design and test of electromechanical disc brake controller for mine hoist

Journal

MEASUREMENT & CONTROL
Volume 55, Issue 3-4, Pages 146-154

Publisher

SAGE PUBLICATIONS LTD
DOI: 10.1177/00202940221091270

Keywords

mine hoist; electromechanical braking; control system; linear quadratic regulator; proportional integral controller

Funding

  1. Major Project of Natural Science Research in Universities of Anhui Province [KJ2021ZD0052]
  2. National Natural Science Foundation of China [51904009]
  3. Open Fund of Anhui Key Laboratory of Mine Intelligent Equipment and Technology [ZKSYS202102]
  4. Research and Development Project of Wuhu Research Institute of Anhui University of Science and Technology [ALW2020YF17]

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This research analyzes the electromechanical mechanical disc brake of mine hoist and establishes a mathematical model. An automatic control system based on linear quadratic regulator and PI controller is proposed to achieve self-adaptive adjustment of braking clearance and braking force. The experimental results indicate that the system has good stability and control performance.
Electromechanical braking technology is an effective way to improve the braking response of mine hoist. Through the analysis of the mine hoist electromechanical mechanical disc brake, a mathematical model including the motor, reducer and thread pair is established. The control process is analyzed in detail, and then the control strategy is obtained. An automatic control system based on linear quadratic regulator and PI controller is proposed. The braking goal of self-adaptive adjustment of braking clearance and on-line adjustment of braking force is realized. Compare the simulation and test results, discuss the performance of the controller. The results of the experiment indicate that the brake gap adjustment time is less than 10 s, stable within 1 +/- 0.2 mm, and the steady-state error is less than 2%. The positive pressure of the brake has a linear relationship with the motor voltage, with a slope of 920.4 and an intercept of -1298.88. It can replace the existing hydraulic brakes without the problem of low degree of automation and high pollution, which provides a new way for the control system of electromechanical brake.

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