We consider the cruise control problem of the push-pull driven type high speed train in which the couplers are characteristic of nonlinear softening spring. The longitudinal dynamics of high speed train with the nonlinear couplers is linearized as the nominal mass-spring system with an variation of stiffness coefficient so that we may apply the Linear Matrix Inequalities (LMI) approach to synthesize the mixed H2/H∞ cruise controller. Nonlinear simulation results show that this mixed H2/H∞ optimal design lead designers into a flexible trade-off between H2 and H∞ objectives. By choosing the H∞, performance bound, properly, designers can determine the desired cruise controller that gives satisfactory performances of command tracking as well as wind gust attenuation for high speed train.
|Number of pages||7|
|Journal||Zhongguo Hangkong Taikong Xuehui Huikan/Transactions of the Aeronautical and Astronautical Society of the Republic of China|
|Publication status||Published - 2001 Jun 1|
All Science Journal Classification (ASJC) codes
- Aerospace Engineering