A New Approach to LQ Design

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Other Title
  • LQ設計への新しい試み
  • LQ設計への新しい試み--最適サーボ系設計への応用
  • LQ セッケイ ヘ ノ アタラシイ ココロミ サイテキ サーボケイ セッケイ
  • Application to the Design of Optimal Servo Systems
  • 最適サーボ系設計への応用

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First, a new design theory of LQ regulator is developed from the practical viewpoint by applying some results on the inverse problem of LQ regulator. The LQ regulator considered here is, unlike the usual one, designed without specifying a performance cost, but it proves to be such a feedback control that minimizes some cost. This theory is then applied to design an optimal servosystem with the following features suitable for practical use: 1) a time constant of the output response can be taken as our design spec., 2) the design computation requires no Riccati solutions, 3) there is a close structural relationship between the controlled system and the resulting feedback matrix.

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