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| Application of the PID Parameters Optimization Based on Improved Genetic Algorithm in Blow-through Steam Flow Rate Control |
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| DOI：10.11981/j.issn.1000-6842.2019.01.60 |
| Key Words:blow-through steam flow; genetic algorithm; PID control parameters optimization; dryer sectron |
| Fund Project:陕西省重点科技创新团队计划项目（2014KCT-15）；陕西省科技统筹创新工程计划项目（2016KTCQ01-35）。 |
| Author Name | Affiliation | | TANG Wei1 | 1.College of Electrical and Information Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021 | | YANG Runshan1,* | 1.College of Electrical and Information Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021 | | SUN Zhenyu2 | 2.College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an, Shaanxi Province, 710021 |
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| Abstract: |
| Blow-through steam flow rate control of paper machine dryer section is an important measure to solve the problem of hydrops in the steam dryer.Blow-through steam flow rate control usually uses PID controller,while traditional PID control is usually inaccurate and the parameters setting method is time consuming, it’s difficult to achieve the ideal control effect.In this paper, on the basis of the analysis of basic genetic algorithm,an improved genetic algorithm was put foward, the algorithm was used in PID controller parameters optimization, which implemented the accurate control of blow-through steam flow rate control of paper machine dryer section.MATLAB simulation experiments showed that the proposed control system had the characteristics of faster response speed, smaller overshoot and better robustness compared with the conventional PID controller and PID controller based on basic genetic algorithm, it could achieve the ideal control effect, the practical application of this algorithm significantly increased the utilization efficiency of secondary steam, which obtained the prominent economic benefits. |
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