Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control
In the power system of a polysilicon reduction furnace, especially during the silicon rod growth process, the issue of insufficient temperature control accuracy arises due to the system’s nonlinear and time-varying characteristics. To address this challenge, a dual-loop control system is proposed, c...
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| Format: | Article |
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MDPI AG
2025-07-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/18/14/3707 |
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| _version_ | 1849732825494847488 |
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| author | Shihao Li Tiejun Zeng Shan Jian Guiping Cui Ziwen Che Genghong Lin Zeyu Yan |
| author_facet | Shihao Li Tiejun Zeng Shan Jian Guiping Cui Ziwen Che Genghong Lin Zeyu Yan |
| author_sort | Shihao Li |
| collection | DOAJ |
| description | In the power system of a polysilicon reduction furnace, especially during the silicon rod growth process, the issue of insufficient temperature control accuracy arises due to the system’s nonlinear and time-varying characteristics. To address this challenge, a dual-loop control system is proposed, combining model-free adaptive control (MFAC) with an improved PID controller. The inner loop utilizes a hysteresis PID controller for dynamic current regulation, ensuring fast and accurate current adjustments. Meanwhile, the outer loop employs a hybrid MFAC-based improved PID algorithm to optimize the temperature tracking performance, achieving precise temperature control even in the presence of system uncertainties. The MFAC component is adaptive and does not require a system model, while the improved PID enhances stability and reduces the response time. Simulation results demonstrate that this hybrid control strategy significantly improves the system’s performance, achieving faster response times, smaller steady-state errors, and notable improvements in the uniformity of polysilicon deposition, which is critical for high-quality silicon rod growth. The proposed system enhances both efficiency and accuracy in industrial applications. Furthermore, applying the dual-loop model to actual industrial products further validated its effectiveness. The experimental results show that the dual-loop model closely approximates the polysilicon production model, confirming that dual-loop control can allow the system to rapidly and accurately reach the set values. |
| format | Article |
| id | doaj-art-9fd39039d1ca4e6798afda30212816d7 |
| institution | DOAJ |
| issn | 1996-1073 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj-art-9fd39039d1ca4e6798afda30212816d72025-08-20T03:08:12ZengMDPI AGEnergies1996-10732025-07-011814370710.3390/en18143707Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive ControlShihao Li0Tiejun Zeng1Shan Jian2Guiping Cui3Ziwen Che4Genghong Lin5Zeyu Yan6School of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaSchool of Electrical Engineering, University of South China, Hengyang 421001, ChinaIn the power system of a polysilicon reduction furnace, especially during the silicon rod growth process, the issue of insufficient temperature control accuracy arises due to the system’s nonlinear and time-varying characteristics. To address this challenge, a dual-loop control system is proposed, combining model-free adaptive control (MFAC) with an improved PID controller. The inner loop utilizes a hysteresis PID controller for dynamic current regulation, ensuring fast and accurate current adjustments. Meanwhile, the outer loop employs a hybrid MFAC-based improved PID algorithm to optimize the temperature tracking performance, achieving precise temperature control even in the presence of system uncertainties. The MFAC component is adaptive and does not require a system model, while the improved PID enhances stability and reduces the response time. Simulation results demonstrate that this hybrid control strategy significantly improves the system’s performance, achieving faster response times, smaller steady-state errors, and notable improvements in the uniformity of polysilicon deposition, which is critical for high-quality silicon rod growth. The proposed system enhances both efficiency and accuracy in industrial applications. Furthermore, applying the dual-loop model to actual industrial products further validated its effectiveness. The experimental results show that the dual-loop model closely approximates the polysilicon production model, confirming that dual-loop control can allow the system to rapidly and accurately reach the set values.https://www.mdpi.com/1996-1073/18/14/3707polysilicon reduction furnace power systemdual-closed-loop control systemmodel-free adaptive control (MFAC)improved PID |
| spellingShingle | Shihao Li Tiejun Zeng Shan Jian Guiping Cui Ziwen Che Genghong Lin Zeyu Yan Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control Energies polysilicon reduction furnace power system dual-closed-loop control system model-free adaptive control (MFAC) improved PID |
| title | Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control |
| title_full | Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control |
| title_fullStr | Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control |
| title_full_unstemmed | Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control |
| title_short | Dual-Closed-Loop Control System for Polysilicon Reduction Furnace Power Supply Based on Hysteresis PID and Predictive Control |
| title_sort | dual closed loop control system for polysilicon reduction furnace power supply based on hysteresis pid and predictive control |
| topic | polysilicon reduction furnace power system dual-closed-loop control system model-free adaptive control (MFAC) improved PID |
| url | https://www.mdpi.com/1996-1073/18/14/3707 |
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