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A Novel Control Method of Sugar Boiling Based on Model-Free Adaptive Control and Neural Networks.

Guancheng Lu1, Yanmei Meng1, Juan Huang2

  • 1School of Mechanical Engineering, Guangxi University, Nanning, China.

Journal of Food Science
|November 8, 2025
PubMed
Summary
This summary is machine-generated.

A new adaptive control method using neural networks improves sugar boiling by enhancing crystal uniformity and sugar absorption. This advanced technique offers superior apparent purity compared to traditional methods.

Keywords:
food engineeringmodel‐free adaptive controlneural networkssugar boiling

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Area of Science:

  • Food Science and Technology
  • Process Control Engineering
  • Artificial Intelligence in Manufacturing

Background:

  • Sugar boiling involves complex nonlinear dynamics, making precise control challenging.
  • Existing methods like manual control and PID control have limitations in optimizing crystal uniformity and apparent purity.
  • Effective control is crucial for maximizing sugar yield and product quality.

Purpose of the Study:

  • To develop a novel adaptive control method for sugar boiling.
  • To integrate model-free adaptive control and neural networks for enhanced process management.
  • To improve sugar absorption and crystal uniformity during the sugar boiling process.

Main Methods:

  • A model-free adaptive control strategy integrated with neural networks was proposed.
  • Neural networks were utilized to calculate valve opening coefficients based on brix and sugar level deviations.
  • The method employed adaptive control principles to manage the sugar boiling process dynamically.

Main Results:

  • The proposed adaptive control method achieved an apparent purity of 22.52%.
  • This surpassed the manual method (21.53%) and PID-based control (21.31%).
  • The new approach demonstrated superior crystal uniformity, color value, and apparent purity difference.

Conclusions:

  • The integrated model-free adaptive control and neural network method provides effective adaptive control for sugar boiling.
  • This advanced technique significantly enhances critical sugar boiling parameters like apparent purity and crystal uniformity.
  • Adoption of this method is recommended for automated sugar boiling systems to optimize product quality.