摘要
针对大系统分散控制中的全局稳定性问题,将分散控制问题与优化问题相结合,提出了一种新的分散控制方法。该方法利用参数特征结构配置方法将分散控制转化为最优问题,通过求解最优问题得到子系统特征结构的参数,从而得到子系统的局域控制器。该控制器不但使子系统具有鲁棒性,而且保证了大系统的全局稳定性。由于分散控制还可以进行并行计算,因此可以提高计算速度。最后对空间站的数值进行了仿真,仿真结果表明,此算法是可行的。
Combining the decentralized control with optimization problem,a new decentralized control method is proposed to solve the stable problem of large-scale systems in the decentralized control.The method changed decentralized control to optimization problem taking advantage of parameterized eigenstructure assignment method.The parameter is obtained by solving optimization problem and the controller of sub-system is also obtained.The system maintains stability and the sub-system is robust.The computation speed is improved by decentralized control.Numerical simulation results show that the decentralized design method based on eigenstructure assignment is feasible.
出处
《控制工程》
CSCD
2005年第2期107-108,124,共3页
Control Engineering of China
基金
国家自然科学基金资助项目(69974024)
关键词
分散控制
特征结构
稳定性
鲁棒性
decentralized control
eigenstructure
stability
robustness
