具有理想跟踪特性的鲁棒变结构模型参考自适应控制
A Robust Variable Structure Mrac with Expected Transient and Steady State Performance
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摘要: 针对相对阶为1的定常线性被控对象,提出了一种控制增益可切换的鲁棒变结构模 型参考自适应控制方案.该方案在对象参数及高频增益符号均未知的情形下,可确保跟踪误 差满足预先给定的过渡过程性能指标,即超调量、过渡过程时间和稳态误差.Abstract: A new robust variable structure model reference adaptive control (VS-MRAC) scheme is proposed in this paper. The scheme is based on the existing VS-MRAC structure together with a switching mechanism to adjust the gain of variable structure control signal. The main features of the scheme are that 1)a prespecified transient and steady-state performance index for tracking error can be achieved, and 2)it doesn't require the sign o[ the plant high frequency gain to be known a priori.
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Key words:
- Adaptive control /
- variable structure control /
- robust control
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