…Until 1960, a method was developed and systematized to design control systems by viewing the controlled object as a black box with one input and one output, analyzing the model in the frequency domain, which represents the input/output characteristics as a transfer function. This is called feedback control theory, but when contrasted with modern control theory, it is sometimes called classical control theory. When the dynamic characteristics of the controlled object are not linear, nonlinear dynamical systems are sometimes introduced, but it is difficult to develop a general theory based on this, and the current situation is that there are only a few control theories that are useful from an engineering perspective, and almost none of them have been systematized. … *Some explanations of terms that refer to "classical control theory" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これに対して,1960年以前までは,制御対象を1入力1出力のブラックボックスと見たて,その入出力特性を伝達関数で表したモデルに対して周波数領域で解析し,制御系設計を行う方法が展開され,体系づけられていた。これはフィードバック制御理論と呼ばれるが,現代制御理論と対比するときは古典制御理論classical control theoryと呼ばれることもある。 なお,制御対象の動特性が線形でないとき,非線形のダイナミカルシステムを導入することもあるが,これに基づく一般論の展開は難しく,工学的に見て有用な制御の理論は数少ないうえに,体系化がなされたものはほとんどないというのが現状である。… ※「classical control theory」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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