振动系统低阶H_∞控制器的遗传算法优化设计

Genetic Algorithms Optimization Design of Lower Order H_∞ Controller for Vibration Systems

针对结构振动系统的高阶控制器实现困难、可靠性低及成本较高的问题,提出了一种新的基于H∞控制和遗传算法优化的低阶控制器设计方法,采用LMI求解与遗传算法随机搜索相结合的方法来进行优化的策略,在一定条件下能方便地设计出理想阶数的控制器.通过仿真实例验证了方法的有效性.

A novel type of lower order controller for vibration systems based on H∞ control and genetic algo- rithms is proposed, which can deal with the difficulty of the high order controller, lower reliability and realization of software and hardware. Using the composite strategies of LMI resolving and multi-objective random searching by genetic algorithms, the desired order controller can be designed easily under some conditions, and simulations are given to demonstrate the effectiveness of the results.