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摘要: 对Gahinet提出的H∞最优性能指标的不连续性进行了分析,指出这不连续性是由 于H∞控制器的存在条件不同和可能的零极点对消造成的.还指出,方法不同并不能改变设 计中存在的问题,对奇异H∞问题,还需要采用另外的措施才能解决.Abstract: The discontinuity of γopt as presented by Gahinet is analysed in this paper. It is pointed out that this phenomenon is caused by the different existing conditions for H∞ controllers and/or the possibility of pole/zero cancellation in the design. It is also pointed out that the computing method itself can not change the essential difficulties in design. For singular H∞ problem, a dedicated approach is still needed.
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Key words:
- H∞ optimal gain /
- continuity property /
- singular H∞ problem
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