位置決めサーボ機構におけるバングバングフィードバック補償

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書誌事項

タイトル別名
  • Bang-Bang Feedback Compensation in the Positioning Servomechanism
  • 大気汚染ノートー13-窒素酸化物汚染の諸問題-8-二酸化窒素環境基準の改定(公害対策シリーズ)
  • タイキ オセン ノート 13 チッソ サンカブツ オセン ノ ショモンダイ 8

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抄録

In this paper, a new kind of compensation in the servomechnism is suggested. In this compensation method, the output voltage of the tachometer generator is first converted to bang-bang signal by the bang-bang element. Then this signal is fed back to the input terminal, giving a good response as a result. This compensation method is named the “bang-bang feedback compensation method”.<br>In this compensation method, when the output voltage value of the bang-bang element is made equal to the overshoot which arises in the uncompensated system upon the arrival of the specific step input, the compensated system exhibits a good response with no overshoot nor offset to the same input.<br>The problems encountered in the actualization of this principle and their solutions are also discussed. Consideration is first given to the method of obtaining a good response for all inputs even if the level of step input varies widely. Then it is pointed out that the time lag of a higher order servo system is regarded as a critical problem in its bang-bang compensation, and that in order to solve this problem, the bang-bang element has to possess a dead band.<br>Furthermore, the usefulness and practicability of bang-bang feedback compensation are fully confirmed by applying this method to the actual system. The advantages of this method are that the parameters in the compensation element can be easily determined and that a good response can be easily obtained.

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