Journal of Systems Engineering and Electronics ›› 2009, Vol. 20 ›› Issue (5): 1058-1064.

• CONTROL THEORY AND APPLICATION • Previous Articles     Next Articles

Optimal tracking control for linear time-delay large-scale systems with persistent disturbances

Tang Ruichun1, Ma Huamin2, Guo Shuangle1,3 & Ren Lijie1   

  1. 1. Coll. of Information Science and Engineering, Ocean Univ. of China, Qingdao 266100, P. R. China;
    2. Huawei Technologies Co., Ltd, Shenzhen 518129, P. R. China;
    3. Coll. of Mathematics and Computer Science, Hengshui Univ., Hengshui 053000, P. R. China
  • Online:2009-10-22 Published:2010-01-03

Abstract:

An optimal tracking control (OTC) problem for linear time-delay large-scale systems affected by external persistent disturbances is investigated. Based on the internal model principle, a disturbance compensator is constructed. The system with persistent disturbances is transformed into an augmented system without persistent disturbances. The original OTC problem of linear time-delay system is transformed into a sequence of linear twopoint boundary value (TPBV) problems by introducing a sensitivity parameter and expanding Maclaurin series around it. By solving an OTC law of the augmented system, the OTC law of the original system is obtained. A numerical simulation is provided to illustrate the effectiveness of the proposed method.