Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral
In conventional proportional–integral–derivative (PID) control, the integral term occupies a significant amount of controller memory, which prolongs the calculation time. The integral term easily leads to overshooting and oscillation, while the derivative term reduces the controller's anti-inte...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9960021 |
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| _version_ | 1832550940178120704 |
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| author | An Yang Weigang Guo Tianlong Han Congrong Zhao Hongwei Zhou Jianping Cai |
| author_facet | An Yang Weigang Guo Tianlong Han Congrong Zhao Hongwei Zhou Jianping Cai |
| author_sort | An Yang |
| collection | DOAJ |
| description | In conventional proportional–integral–derivative (PID) control, the integral term occupies a significant amount of controller memory, which prolongs the calculation time. The integral term easily leads to overshooting and oscillation, while the derivative term reduces the controller's anti-interference ability. In view of these problems, a PID expression with a recurrence relationship was derived, and the integral and differential terms of the conventional PID model were improved using an unsaturated integral and passivation differential to achieve a good control effect. Then, the improved PID was applied to the injection speed control of an injection molding machine, which is usually controlled using conventional PID control that featured difficulty in mathematical modeling, a nonlinear relationship between the input and the output, and high system complexity. Taking an injection molding machine as the control object, the transfer function of the injection system was constructed. Then, the improved PID was simulated using Matlab/Simulink. Lastly, the improved PID was verified using experiments. The simulation and the experimental results showed that the control model had a rapid response, no overshoot, and a high precision. |
| format | Article |
| id | doaj-art-d9a595fd6f1a497dbb653c876adfa59b |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d9a595fd6f1a497dbb653c876adfa59b2025-02-03T06:05:28ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99600219960021Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated IntegralAn Yang0Weigang Guo1Tianlong Han2Congrong Zhao3Hongwei Zhou4Jianping Cai5Hangzhou Vocational and Technical College, Hangzhou 310018, ChinaHangzhou Vocational and Technical College, Hangzhou 310018, ChinaHangzhou Vocational and Technical College, Hangzhou 310018, ChinaHangzhou Vocational and Technical College, Hangzhou 310018, ChinaTederic Machinery Co., Ltd., Hangzhou 310018, ChinaNingbo Haitian Plastic Machinery Group Co., Ltd., Ningbo 315821, ChinaIn conventional proportional–integral–derivative (PID) control, the integral term occupies a significant amount of controller memory, which prolongs the calculation time. The integral term easily leads to overshooting and oscillation, while the derivative term reduces the controller's anti-interference ability. In view of these problems, a PID expression with a recurrence relationship was derived, and the integral and differential terms of the conventional PID model were improved using an unsaturated integral and passivation differential to achieve a good control effect. Then, the improved PID was applied to the injection speed control of an injection molding machine, which is usually controlled using conventional PID control that featured difficulty in mathematical modeling, a nonlinear relationship between the input and the output, and high system complexity. Taking an injection molding machine as the control object, the transfer function of the injection system was constructed. Then, the improved PID was simulated using Matlab/Simulink. Lastly, the improved PID was verified using experiments. The simulation and the experimental results showed that the control model had a rapid response, no overshoot, and a high precision.http://dx.doi.org/10.1155/2021/9960021 |
| spellingShingle | An Yang Weigang Guo Tianlong Han Congrong Zhao Hongwei Zhou Jianping Cai Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral Shock and Vibration |
| title | Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral |
| title_full | Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral |
| title_fullStr | Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral |
| title_full_unstemmed | Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral |
| title_short | Feedback Control of Injection Rate of the Injection Molding Machine Based on PID Improved by Unsaturated Integral |
| title_sort | feedback control of injection rate of the injection molding machine based on pid improved by unsaturated integral |
| url | http://dx.doi.org/10.1155/2021/9960021 |
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