摘要
鉴于传统泵站供水系统存在耗能大、水压波动大等问题,在对某泵站供水系统作系统研究的基础上,提出了以供水管网的水压、水位、流量等参数为控制对象,采用自适应模糊PID控制策略,通过调整供水水泵的投入台数及转速,来实现恒压供水的快速性和可靠性的解决方案.对自适应模糊PID算法进行了研究和计算机仿真,给出了基于MATLAB的系统仿真结果,并对该自适应模糊PID控制结果与传统的PID控制仿真结果进行了比较.仿真与实验结果表明:采用自适应模糊PID变频恒压闭环供水,供水控制系统的稳定性得到了较大的改善,在设定水压值为0.9 MPa时,系统的上升时间为2.76 min,超调量为0.47%,调节时间为2.8 min.
Traditional pump station for water supply systems consumes much energy and its water pressure fluctuation is big. Based on research of a certain pump station for water supply system, and by adopting the self-adapting Fuzzy- PID constant pressure control strategy,which functions by means of adjustment of the number and rotational speed of operating pumps, the water-supply at constant pressure is realized. The MATLAB-based simulation results for the self-adapting Fuzzy - PID control are compared with the traditional PID control simulation results. The experiment results show that the stability of water supply system is greatly improved.
出处
《排灌机械》
2008年第1期43-46,共4页
Drainage and Irrigation Machinery
基金
江苏省自然科学基金资助项目(BK2007094)
关键词
恒压供水
供水泵站
模糊PID
单片机
变频控制
constant-pressure water supply
water supply pump station
Fuzzy- PID
single chip computer
frequency-conversion control
