摘要
管网叠压供水系统运行时受到管网余压及用户流量的双重干扰,具有非线性程度高、多变量耦合、数学模型难确定的特点,其精确控制很难实现。根据政府和用户的要求,利用模糊算法对常规PID的参数进行实时在线调整,形成模糊PID控制器。通过Simulink将模糊PID控制器和常规PID控制器进行分析比较。仿真结果表明模糊PID响应速度快,无超调,抗干扰能力强,适应范围广,具有更好的鲁棒性和稳定性,对管网叠压供水系统具有很好的控制效果。
Network pressure-superposed water supply system is a nonlinear, multivariable coupling system whose precise mathematic model is difficult to obtain. And it is hard to control for its output is influenced by both network pressure and user flow interferences. In order to meet the requests of the government and the users,fuzzy PID controller was proposed to realize the on-line adjustment of PID parameters by fuzzy algorithm. Based on Simulink simulation, comparisons were made between fuzzy PID controller and traditional PID controller. The simulation results show that fuzzy PID has a better control of pressure-superposed water supply system because of its fast response, non-overshoot, strong anti-interference ability, wide adaptability, good robustness and stability.
出处
《电气传动》
北大核心
2010年第11期53-56,共4页
Electric Drive
基金
天津市科技支撑计划重点项目(08ZCKFGX08000)
