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The electrode of a fused magnesia furnace is characterized as a nonlinear discrete system with time-varying parameters and multiple disturbances. Traditional control algorithms, which rely on precise mathematical models, are difficult to design effectively. To address this issue, a model-free control algorithm based on input/output data is proposed. A model-free adaptive controller is constructed by integrating the Model-Free Adaptive Control (MFAC) algorithm with the Sliding Mode Control (SMC) algorithm using a partially structured dynamic linearization model. The stability of the proposed controller is verified through theoretical analysis. Simulation experiments are conducted to compare the performance of the proposed control algorithm with a PID controller. The results indicate that a fast response, high robustness, and smooth output are achieved, demonstrating the suitability of the proposed method for electrode regulation in fused magnesia furnaces.

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Partial Format-Based Model-Free Sliding Mode Control Design for Fused Magnesium Furnaces Electrode Systems

  • 会议论文

  • 发表日期：

    2026年

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  • Chong Zhang,
  • Qiuxia Qu,
  • Juan Wang,
  • Jiaqi Zhai

摘要

The electrode of a fused magnesia furnace is characterized as a nonlinear discrete system with time-varying parameters and multiple disturbances. Traditional control algorithms, which rely on precise mathematical models, are difficult to design effectively. To address this issue, a model-free control algorithm based on input/output data is proposed. A model-free adaptive controller is constructed by integrating the Model-Free Adaptive Control (MFAC) algorithm with the Sliding Mode Control (SMC) algorithm using a partially structured dynamic linearization model. The stability of the proposed controller is verified through theoretical analysis. Simulation experiments are conducted to compare the performance of the proposed control algorithm with a PID controller. The results indicate that a fast response, high robustness, and smooth output are achieved, demonstrating the suitability of the proposed method for electrode regulation in fused magnesia furnaces.