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Deep Reinforcement Learning-Based Adaptive PID Temperature Control Method for Scrap Aluminum Induction Heating System

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DOI: 10.23977/acss.2026.100207 | Downloads: 0 | Views: 79

Author(s)

Zhuoyue Xu 1, Jingwei Wang 1

Affiliation(s)

1 TUT Maritime College, Tianjin University of Technology, Tianjin, China

Corresponding Author

Jingwei Wang

ABSTRACT

To address the issues of temperature response lag, difficulty in real-time adjustment of control parameters, and insufficient system stability under complex operating conditions during induction heating of scrap aluminum, this paper proposes a proportional-integral-derivative (PID) temperature control method based on Proximal Policy Optimization (PPO) deep reinforcement learning. First, a first-order inertial pure time-delay mathematical model of the induction heating system is established to describe the thermal inertia and time-delay dynamic characteristics during the heating process. Second, a near-end strategy optimization algorithm is introduced into the proportional-integral-derivative (PID) controller parameter adjustment process. A reinforcement learning state space is constructed using the system temperature error, error rate of change, control output, and actual temperature. The proportional, integral, and derivative parameter corrections are used as action outputs to achieve online adaptive updating of the control parameters. Subsequently, a co-simulation experimental environment is built on the MATLAB/Simulink platform, and comparative analyses are conducted with traditional proportional-integral-derivative (PID) control, fuzzy proportional-integral-derivative (Fuzzy PID) control, and Sparrow Search Algorithm-optimized proportional-integral-derivative (SSA-PID) control method. Experimental results show that the proposed method can effectively reduce system temperature overshoot, shorten system rise time and settling time, and quickly recover the system's stable state under external disturbances, exhibiting good dynamic tracking performance and disturbance rejection capability. This research provides a new solution for intelligent temperature control of complex industrial induction heating systems.

KEYWORDS

Proximal Policy Optimization; Deep Reinforcement Learning; PID Control; Induction Heating

CITE THIS PAPER

Zhuoyue Xu, Jingwei Wang. Deep Reinforcement Learning-Based Adaptive PID Temperature Control Method for Scrap Aluminum Induction Heating System. Advances in Computer, Signals and Systems (2026). Vol. 10, No. 2, 59-72. DOI: http://dx.doi.org/10.23977/acss.2026.100207.

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