New integrated control design method based on receding horizon control with adaptive DA converter
New integrated control design method based on receding horizon control with adaptive DA converter
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发表时间：
2006-03
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通讯作者：
Takuto Motoyama;T. Kawabe;K. Toraichi;K. Katagishi
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作者：
Takuto Motoyama;T. Kawabe;K. Toraichi;K. Katagishi
针对动态运动相对较快的系统，提出了一种基于后退水平控制和流畅性分析的综合控制设计方法。在本文作者提出的流畅性分析中，利用信号空间的平滑性对其进行了很好的分类，并在每个空间中提出了具有良好性质的流畅性采样函数。然而，由于使用采样函数的插值需要未来样本的信息，因此很难将流畅性分析方法应用于采样数据控制系统中的DA（数模）转换器。因此，我们提出了一种新的插值方法，利用在RHC控制器上每步计算的预测信息。此外，还提出了根据系统状态切换流畅度采样函数的方法。该方法实现为自适应数模转换器。数值算例表明，所提出的方法能够改善包含控制器和自适应数模转换器的系统的控制性能。
In this paper, a new integrated control design method based on RHC (receding horizon control) and Fluency analysis is proposed for systems with relatively fast-moving dynamics. In the Fluency analysis which has been proposed by a co-author of this paper, signal spaces are well-classified by its smoothness, and Fluency sampling functions with good properties have been proposed in each space. However, it has been difficult to apply the Fluency analysis approach for a DA (digital-to-analog) converter in sampled-data control systems, since the interpolation using sampling function needs the information of future samples. We, therefore, propose a new interpolation method using predicted information calculated on RHC controller in each step. Moreover, the way to switch the Fluency sampling functions according to the system status is proposed. This approach is realized as an adaptive DA converter. A numerical example is also included to show the proposed method enables us to improve the control performance of systems including a controller and the adaptive DA converter.