A Hybrid MPC for Start-up Phase Tension and Looper Control in Hot Strip Finishing Mills Using an Optimal Condition for Mode Transition Time

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  • モード切替え時刻の最適条件を用いたハイブリッドモデル予測制御による熱延仕上ミル張力・ルーパ系のスタートアップ制御
  • モード キリカエ ジコク ノ サイテキ ジョウケン オ モチイタ ハイブリッド モデル ヨソク セイギョ ニ ヨル ネツエン シアゲ ミル チョウリョク ルーパケイ ノ スタートアップ セイギョ

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Abstract

This paper gives a design method for a model predictive control (MPC) approach by using a unified performance index throughout the start-up phase tension and looper control which consists of the non-contact and contact modes in order to suppress the deviation of the strip tension while the looper contacts with the strip as quickly as possible. In this paper, the control problem is formulated as a bi-modal hybrid MPC design using an optimal condition for mode transition. In addition, the paper gives a method using a continuation method to achieve on-line implementation. The efficiency of the proposed method is shown through numerical simulations.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 96 (7), 443-450, 2010

    The Iron and Steel Institute of Japan

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