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.
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-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.
朱本坤. 基于单片机的模糊PID恒压供水控制系统[J]. 排灌机械工程学报, 2008, 26(1): 43-46.
ZHU Ben-kun. Fuzzy-PID constant-pressure water supply system based on single chip computer. Journal of Drainage and Irrigation Machinery Engin, 2008, 26(1): 43-46.