Research on the Temperature Control System of 6KA Neodymium Oxide Electrolysis Furnace with BAS_PID Algorithm

• Published in: Journal of physics. Conference series 2021-03, Vol.1820 (1), p.12190
• Main Authors: Bai, Song, Ran, Junming, Gan, Jiayi, Chen, Jianbin, Tang, Shenglong, Gao, Peng
• Format: Article
• Language: English
• Subjects: Algorithms; Automatic control; Control algorithms; Control systems; Control theory; Electrolysis; Measurement methods; Neodymium; Physics; Proportional integral derivative; Temperature control; Temperature measurement
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1820/1/012190

In order to solve the obvious temperature fluctuations in the cell during the neodymium oxide electrolysis process, the traditional PID control algorithm has a large lag, the timeliness of the multi-variable electrolysis temperature control system is poor, and the manual parameter adjustment is difficult, the beetle PID automatic temperature control system is proposed. Through the control of the key variable cathode current density, speed up the system to adjust the output speed; use the orthogonal temperature measurement method to replace the traditional single point temperature measurement, and use the domain temperature to represent the point temperature to solve the problem of large temperature measurement errors. This algorithm model is based on MATLAB2017 platform for modeling simulation and experimental research. Compared with traditional PID, this method has better adaptive ability and robust performance. The maximum deviation between the actual electrolysis temperature and the set target temperature is 45°C, and the overshoot is 3.3 %, to meet the process index requirements in the actual production process, and provide a reference case for the improvement of neodymium oxide electrolysis process.