Prediction of the tendency of grate pressure based on hidden Markov model which is optimized by the improved multiple population genetic algorithm

被引:1
|
作者
Liu Z.-L. [1 ,2 ]
Zhang C.-L. [1 ,2 ]
Guo C.-J. [1 ,2 ,3 ]
Wang H.-Y. [1 ,2 ]
Wu Y. [1 ,2 ]
Liu B. [1 ,2 ]
机构
[1] Information Science and Engineering College, Yanshan University, Hebei Province Key Laboratory of Special Optical Fiber and Optical Fiber Sensing, Qinhuangdao, 066004, Hebei
[2] Information Science and Engineering College, Yanshan University, Qinhuangdao, 066004, Hebei
[3] LiRen College, Yanshan University, Qinhuangdao, 066004, Hebei
基金
中国国家自然科学基金;
关键词
Genetic algorithm; Grate; Hidden Markov model; Improved multiple population genetic algorithm; Prediction; Principal component analysis; The grate pressure;
D O I
10.7641/CTA.2018.80490
中图分类号
学科分类号
摘要
A model for predicting the variation tendency of grate pressure is proposed in this paper, taking the grate pressure as the research object which is the key parameters of grate cooler. Principal component analysis is used to reduce the dimension of data. The principal component feature sequence is used as the observation sequence. An algorithm combined with the improved multiple population genetic algorithm and hidden Markov model is constructed. Individuals are selected by roulette selection operator to avoid local convergence, the adaptive crossover operator is designed, which is combined with double zone crossover and uniform line crossover. The polynomial mutation operation of dynamic mutation rate is applied to improve the convergence speed within population. An immigration operator is presented which is mixed by communication mechanism between teachers and students to ensure the co-evolution of multiple populations. The research results show that the improved algorithm can converge to the global optimum and improve convergence accuracy and speed. The model established by this algorithm exhibits good tracking performance and high prediction accuracy, which is suitable for predicting the variation tendency of grate pressure. © 2019, Editorial Department of Control Theory & Applications South China University of Technology. All right reserved.
引用
收藏
页码:1217 / 1226
页数:9
相关论文
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