报告题目:Iterative Chebyshev Approximation Method for Optimal Control Problems
报告人:余长君 副教授 上海大学
报告时间:2021年10月13日(周三)上午10:10 – 10:50
报告地点:腾讯会议 ID:503 718 277, 会议密码:9999
校内联系人:李欣欣 xinxinli@jlu.edu.cn
报告摘要:A new computational method is proposed to solve nonlinear constrained optimal control problems (NCOCPs), where the cost, constraint and system dynamic are convex with respect to the state and control vectors. Instead of solving the NCOCPs directly, we linearize the system dynamics as well as constraints to give rise to a sequence of sub-problems. For each sub-problem, the state and control functions are approximated by Chebyshev series. Thus, we obtain a convex optimization problem where the coefficients of Chebyshev polynomials are the decision variables. The approximate optimization problem can be solved by inexact symmetric Gauss-Seidel based majorized ADMM algorithm. We further prove that the optimal solutions to the sub-problems converge uniformly to that of the original problem. Several examples are considered and solved using the proposed approach. The numerical results obtained show that the method proposed is highly efficient when compared with other existing methods.
报告人简介:余长君,副教授、博士生导师,上海大学理学院副经理。2005年本科毕业于电子科技大学应用必威;2012年于澳大利亚 Curtin University获得博士学位;2012 - 2016 任澳大利亚 Curtin University 数学系Research Fellow; 2016年进入上海大学理学院数学系工作至今。余长君博士主要从事非线性最优化与最优控制理论、算法及其在信息和工程中的应用的研究,在 IEEE Transactions on Automatic Control,Automatica等国际著名学术期刊发表论文40余篇,主持国家自然科学基金青年基金,面上项目,上海市科委基础研究重点项目;余长君博士于2015年入选上海市青年东方学者计划;2018年获得上海大学蔡冠深优秀青年教师奖;自2019年1月担任SCI期刊《Journal of Industrial and Management Optimization》Associate Editor;自2019年4月担任中国运筹学会数学优化分会青年理事;自2020年10月担任中国运筹学会理事,自2020年11月担任上海市运筹学会常务副理事长兼秘书长。