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为了减弱转子质量不平衡带来的干扰,提出一种多目标(H2/H∞控制和极点配置)性能要求的增益调度电磁轴承控制器.电磁轴承这类线性参数变化系统(LPV)可认为是参数多面体,在多面体各顶点处采用线性矩阵不等式组(LMIs)和凸优化技术,设计满足闭环极点配置和H2/H∞性能的控制器参数,然后将这些控制器参数综合为一个增益调度控制器.仿真结果表明,利用该方法设计的控制器可使电磁轴承随转速变化始终具有良好的控制性能.
In order to reduce the interference caused by unbalanced rotor mass, a multi-objective (H2 / H∞control and pole placement) gain-controlled electromagnetic bearing controller is proposed.Linear parameter variation system (LPV) such as electromagnetic bearing can be considered as Parametric polyhedron, controller parameters of closed-loop pole configuration and H2 / H∞ performance are designed by linear matrix inequalities (LMIs) and convex optimization techniques at each vertex of the polyhedron, and then these controller parameters are integrated into a gain scheduling controller The simulation results show that the controller designed by this method can make electromagnetic bearing always have good control performance with the change of speed.