西安交通大学机械工程学院,西安,710049
网络首发:2009-01-10,
纸质出版:2009
移动端阅览
李小虎 1, 杜海峰 2, 庄健 1, 等. 基于小世界原理的模型降阶优化研究[J]. 西安交通大学学报, 2009,43(1):108-113.
Model Reduction Optimization Based on Small-World Principle[J]. 2009, 43(1): 108-113.
为了克服模型降阶问题参数多且易陷入局部最优值的缺点
借鉴社会网络中的小世界原理
提出了基于十进制编码策略的局部短连接和随机长连接搜索算子
进而构造了一种十进制编码的小世界优化算法(DSWA).对稳定和非稳定线性系统的模型降阶优化进行了试验
验证了DSWA算法求解的可行性和有效性.区间固定与区间动态扩展策略的对比结果表明
采用区间动态扩展策略要优于区间固定策略
且DSWA算法能在一定程度上克服陷入局部最优值的问题.此外
通过对比所得优化模型与原始模型之间的误差值、时频域响应曲线等
表明采用DSWA算法得到的降阶模型具有较优的逼近性能.
There are many parameters in model reduction problems and some algorithms are prone to trap in local optimum. Based on the small-world principle in social networks
a decimal-coding local short-connection operator and a random long-connection search operator are proposed. Then a decimal-coding small world algorithm(DSWA)is designed
whose validity and feasibility are testified by the simulation of stable and unstable linear system model reduction. Comparing search-space fixation scheme with expansion scheme
the results indicate that search-space expansion scheme is better than search-space fixation scheme
and DSWA can avoid trapping in local optimum to a certain extent. And a comparison between the optimization model and the original model in the indicators of the error and the time-domain and frequency responses
exhibits the better approximate properties of the reduction model obtained by DSWA.
JIHSHENG L, JAMES C H. Practical model reduction [J]. IEEE Transactions on Industrial Electronics, 1987, 34(1): 70-77.
BULTHEEL A, VAN BAREL M. Pade techniques for model reduction in linear system theory: a survey [J]. Journal of Computation and Applied Mathematics, 1986, 14(3): 401-438.
ZHONG Weicai, LIU Jing, XUE Mingzhi, et al. A multi-agent genetic algorithm for global numerical optimization [J]. IEEE Transactions on System, Man, and Cybernetics:part B, 2004, 34(2): 1128-1141.
李令莱, 王凌, 郑大钟. 基于一类SMSA策略的模型最优降阶 [J]. 控制与决策, 2004, 19(8): 947-953.
LI Linglai, WANG Ling, ZHENG Dazhong. Optimal reduction of models based on a class of SMSA strategy [J]. Control and Decision, 2004, 19(8): 947-953.
WATTS D. Six degrees: the science of a connected age [M]. New York,USA: WW Norton Company, 2004: 19-100.
杜海峰, 庄健, 张进华, 等. 用于函数优化的小世界优化算法 [J]. 西安交通大学学报, 2005, 39(9): 1011-1015.
DU Haifeng, ZHUANG Jian, ZHANG Jinhua, et al. Small-world phenomenon for function optimization [J]. Journal of Xi'an Jiaotong University, 2005, 39(9): 1011-1015.
公茂果, 杜海峰, 焦李成. 基于人工免疫响应的线性系统逼近 [J]. 中国科学:E辑, 2005, 35(12): 1288-1303.
GONG Maoguo, DU Haifeng, JIAO Licheng. Linear system approximation based on artificial immune response [J]. Science in China: E, 2005, 35(12): 1288-1303.
KLEINBERG J M. The small-world phenomenon and decentralized search [J]. SIAM News, 2004, 37(3): 1-2.
GUO Tongyi, HWANG C. Optimal reduced-order models for unstable and nonminimum phase systems [J]. IEEE Transactions on Circuits and Systems: I, 1996, 39(9): 800-805.
0
浏览量
4
下载量
3
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621