Huixia Liu

Work place: Light Industry and Food Engineering Institute, Guangxi University, Nanning 530004, China



Research Interests: Earth Sciences, Earth & Environmental Sciences, Chemistry & Materials Science


Huixia Liu received the B.E. degree in sugar engineering from South China Institute of Technology, Guangzhou, China, in 1982. He is currently a Professor of sugar engineering with the Light Industry and Food Engineering Institute, Guangxi University, Nanning, China. Her research is carbohydrate sepa-rations or purify, biological or fermented wastewater treatment, opti-mization of sugar technique

Author Articles
Optimal Control for Industrial Sucrose Crystallization with Action Dependent Heuristic Dynamic Programming

By Xiaofeng Lin Heng Zhang Li Wei Huixia Liu

DOI:, Pub. Date: 8 Oct. 2009

This paper applies a neural-network-based approximate dynamic programming (ADP) method, namely, the action dependent heuristic dynamic programming (ADHDP), to an industrial sucrose crystallization optimal control problem. The industrial sucrose crystallization is a nonlinear and slow time-varying process. It is quite difficult to establish a precise mechanism model of the crystallization, because of complex internal mechanism and interacting variables. We developed a neural network model of the crystallization based on the data from the actual sugar boiling process of sugar refinery. The ADHDP is a learningand approximation-based approach which can solve the optimization control problem of nonlinear system. The paper covers the basic principle of this learning scheme and the design of neural network controller based on the approach. The result of simulation shows the controller based on action dependent heuristic dynamic programming approach can optimize industrial sucrose crystallization.

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