Design PID Controllers for the Air-Conditioning Process Using Genetic Algorithm
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In this paper, we design a qualified proportional-integral-derivative (PID) controller for air-conditioning process. Two-degree freedom control structure is designed for decoupling the set-point following and attenuation of load disturbances. The optimization algorithms are used for guaranteeing enough ability to reject load disturbances to the robustness constraints. The control performance of typical tuning methods is often relatively poor although it is quite user-friendly. On the other hand, the controller designed by optimizing algorithms performs better while it is computationally expensive. The novel algorithm is designed to overcome this contradiction. The method based on genetic algorithm is convenient and practical. Finally, the humidity conditioning process experiment is used to prove the effectiveness of our method.
KeywordsPID controller Air-conditioning Genetic algorithm
This work was supported by Tianjin applied basic and frontier technology research plan (Grant No. 15JCZDJC32800), the Science and Technology Support Program of Tianjin, China (Grant No. 17PTYHZ00060), Special funds project of Tianjin Municipal Commission of industry and information technology (Grant No. 201803104).
- 2.Yamamoto S, Hashimoto I. Present status and future needs: the view from Japanese industry. In: Proceedings of the fourth international conference on chemical process control, Texas; 1991.Google Scholar
- 3.Astrom KJ. PID controllers: theory, design and tuning. Instrument Society of America; 1995. p. 5–6.Google Scholar
- 16.Wu H, Su W, Liu Z. PID controllers: design and tuning methods. In: 2014 IEEE 9th conference on industrial electronics and applications (ICIEA). IEEE; 2014. p. 808–13.Google Scholar