- Modeling and Optimized Control Algorithm for a Solar Fresh Air Heating System
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- 关键字：Solar fresh air system; Environmental Protection; Mathematical Model; fuzzy self-tuning PID
- 摘要：A solar fresh air heating system with phase change thermal storage was introduced in this paper as an environmental protection energy saving method, and the mathematical model of the air conditioning room was derived based on law of thermodynamics. The fresh air temperature control problem was also addressed, and self-tuning parameter fuzzy PID controller was proposed for disturbance rejection due to the time delay problem and parameter variations, which was designed to regulate the flow rate to control the fresh air temperature. The controller presented is then validated, through simulation and experiment, to provide superior control performance with higher control accuracy, faster response and stronger robustness to a conventional PID controller.
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