摘要
针对暖通空调系统中,具有较大时滞、大惯性等动态特性的空气处理设备,综合分数阶建模和自动控制理论,提出了基于分数阶PIλDμ的控制方案。首先,对空气处理机组,进行数学建模。然后用阶数搜索法与频域分析法,获取相应的控制参数,因而构建出空气处理机组的分数阶PIλDμ控制系统,且通过实例仿真对其进行验证。结果表明,该控制系统是可行的。而且,比传统PID控制系统,其控制性能指标更好,进一步的提升了空气处理机组的使用寿命。
For the air-treating units with dynamic characteristic of large time delay and inertia in a heating, ventilation and air-conditioning system, a control system of fractional order PIλDμ＂ is proposed by synthesizing the theories of fractional modeling and automatic control. Air handling unit is established. Secondly, the corresponding control parameters are obtained by the approaches of frequency domain analysis and order number search. Accordingly, a control system of fractional order PIλDμ＂ for fir-handling unit can be designed and be verified via an example simulation. The results show that this control system is feasible in theory. Moreover, its control performance is better than that of the control system of traditional PID and further improve the service life of air handling unit.
出处
《制冷与空调（四川）》
2013年第2期162-165,共4页
Refrigeration and Air Conditioning
基金
国家自然科学基金项目(61064003)
