【摘要】 提出一种针对扭振模态观测器的溢出问题的评价定义,将溢出抑制要求表达为一个H∞性能指标。然后提出一种H∞扭振模态观测器,同时考虑溢出抑制要求的频域性能指标以及与初值误差有关的时域暂态特性指标,将H∞扭振模态观测器归结为一个多目标H∞综合问题,借助MATLAB的LMI工具箱实现了这一设计问题的求解。H∞扭振模态观测器具有良好的特性,在扭振在线监测和主动控制领域有应用价值。更多还原

【Abstract】 An evaluating definition of observationspillover of the torsional modal observer is developed, in which the requirement of spillover suppression is formulated as a H∞performance specification. Then a H∞ torsional modalobserver is proposed and formulated as a multi-objective H∞synthesis problem to simultaneously guarantee satisfactoryfrequency-domain performance involved with observationspillover and transient behaviors involved with initial error. The design procedure is implemented by using MATLAB抯LMI Control Toolbox in a fast and user-friendly manner. The H torsional modal observer can be used profitably inapplication to monitoring and active control of torsionalvibration of the turbine-generator for promating its performance.更多还原