基于单片机的模糊PID恒压供水控制系统
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.
关键词:恒压供水;供水泵站;模糊PID ;单片机;变频控制
Fuzzy-PID constant-pressure water supply system
based on single chip computer
ZHU Ben-kun
Experiment and Practice Center, Zhenjiang College, Zhenjiang, Jiangsu 212003, China)
Abstract: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一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一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.
Key words:constant-pressure water supply;water supply pump station; Fuzzy一PID;single chip com-
puter; frequency-conversion control
在高层建筑、生活小区，集中供热、中央空调，以
及园林喷泉等处，还有不少场合采用直接水泵加压
方式供水，水泵扬程高，电机一直处于高速运转状
态，造成巨大的电能消耗，而且管网的水压波动较
大，影响管路的使用寿命.优化供水控制系统，在节
能降耗上具有重要的现实意义〔‘〕.
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