单容水箱液位控制研究

摘要

水箱液位系统具有时滞性和非线性,若要对其建立精确的数学模型比较困难.本文论述了单容水箱液位系统的组成原理,并将模糊控制的方法引用到对单容水箱液位系统的控制中,通过系统实时仿真曲线验证了算法的有效性.结果表明,和常规PID控制相比较,模糊控制对于单容水箱液位系统的控制而言,具有良好的动静态品质,使系统的响应速度加快,超调量减小,稳定性增强.%Water tank fluid position system had the characteristics of time-delay and non-linearity, it is difficult to huild the exact mathematic model. The constitution theory of the single-capacity water tank fluid position system were discussed in the paper, fuzzy control method was introduced to the system control, the simulation was carried out. The results showed that fuzzy controller has a better control ability to dynamic and static quality of the system such as the faster response time and the smaller overshoot. The stability of the system was improved.