多重采樣離散時間系統的最優預見伺服控制器設計

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基金項目:

國家自然科學基金資助項目(No.10671011)

Design of an optimal preview controller for a kind of discrete-time systems

1. Applied Science School, University of Science and Technology Beijing, Beijing 100083, China;
2. Information Engineering School, University of Science and Technology Beijing, Beijing 100083, China

摘要: 研究了具有多重采樣特點的離散時間控制系統,對這類系統給出了一種最優預見控制器的設計方法.首先利用離散時間系統提升技術,把多重采樣離散時間系統轉化成單一采樣的擴大系統.然后利用構造擴大誤差系統的方法引入積分器.再對擴大誤差系統應用通常的線性二次型最優預見伺服系統設計方法設計控制器,從而得到原系統的多重采樣最優預見控制器.
- 伺服系統 /
- 預見控制 /
- 采樣控制 /
- 離散提升技術 /
- 代數RICCATI方程
Abstract: A kind of linear discrete-time system with multirate control setting was studied and a controller design method was presented for the system. By using discrete-time lifting technique the multirate discrete-time system was reduced to a single-rate system. And then a discrete integrator was introduced by applying state vectors augmentation. Based on the standard linear quadratic optimal prev/ew control theory, the desired preview controller was obtained.
- preview control /
- sampling control /
- discrete-time lifting technique /
- algebraic Riccati equation /
- servomechanism