With the unique erggdicity, i rregularity, and.special ability to avoid being trapped in local optima, chaos optimization has been a novel global optimization technique and has attracted considerable attention for a...With the unique erggdicity, i rregularity, and.special ability to avoid being trapped in local optima, chaos optimization has been a novel global optimization technique and has attracted considerable attention for application in various fields, such as nonlinear programming problems. In this article, a novel neural network nonlinear predic-tive control （NNPC） strategy baseed on the new Tent-map chaos optimization algorithm （TCOA） is presented. Thefeedforward neural network＇is used as the multi-step predictive model. In addition, the TCOA is applied to perform the nonlinear rolling optimization to enhance the convergence and accuracy in the NNPC. Simulation on a labora-tory-scale liquid-level system is given to illustrate the effectiveness of the proposed method.展开更多
针对浣熊优化算法(coati optimization algorithm,COA)全局搜索能力不足、易陷入局部最优和收敛速度慢的问题,提出一种基于非线性自适应的改进浣熊优化算法(improved coati optimization algorithm based on nonlinear adaptation,NACOA...针对浣熊优化算法(coati optimization algorithm,COA)全局搜索能力不足、易陷入局部最优和收敛速度慢的问题,提出一种基于非线性自适应的改进浣熊优化算法(improved coati optimization algorithm based on nonlinear adaptation,NACOA)。采用Logistic-Tent映射初始化浣熊种群,提升算法初始搜索空间覆盖度,生成更加分散且高质量的初始解;引入莱维飞行策略,利用其长跳跃特性,增强算法的全局搜索能力,有效避免算法陷入局部最优;利用非线性递减惯性权重提高种群的适应性与搜索效率,平衡全局搜索和局部搜索能力,并通过黄金正弦策略提高种群收敛精度。在基准测试函数上进行对比仿真试验,结果表明NACOA具有更好的收敛速度和寻优精度。将NACOA应用到工程问题设计中,证明了该算法的有效性和实用性。展开更多
基金Supported by the National Natural Science Foundation of China （No.60374037, No.60574036）, the Program for New Century Excellent Talents in University of China （NCET）, the Specialized Research Fund for the Doctoral Program of Higher Education of China （No.20050055013）, .and the 0pening Project Foundation of National Lab of Industrial Control Technology （No.0708008）.
文摘With the unique erggdicity, i rregularity, and.special ability to avoid being trapped in local optima, chaos optimization has been a novel global optimization technique and has attracted considerable attention for application in various fields, such as nonlinear programming problems. In this article, a novel neural network nonlinear predic-tive control （NNPC） strategy baseed on the new Tent-map chaos optimization algorithm （TCOA） is presented. Thefeedforward neural network＇is used as the multi-step predictive model. In addition, the TCOA is applied to perform the nonlinear rolling optimization to enhance the convergence and accuracy in the NNPC. Simulation on a labora-tory-scale liquid-level system is given to illustrate the effectiveness of the proposed method.
文摘针对浣熊优化算法(coati optimization algorithm,COA)全局搜索能力不足、易陷入局部最优和收敛速度慢的问题,提出一种基于非线性自适应的改进浣熊优化算法(improved coati optimization algorithm based on nonlinear adaptation,NACOA)。采用Logistic-Tent映射初始化浣熊种群,提升算法初始搜索空间覆盖度,生成更加分散且高质量的初始解;引入莱维飞行策略,利用其长跳跃特性,增强算法的全局搜索能力,有效避免算法陷入局部最优;利用非线性递减惯性权重提高种群的适应性与搜索效率,平衡全局搜索和局部搜索能力,并通过黄金正弦策略提高种群收敛精度。在基准测试函数上进行对比仿真试验,结果表明NACOA具有更好的收敛速度和寻优精度。将NACOA应用到工程问题设计中,证明了该算法的有效性和实用性。
