基于参数自整定的模糊智能供水策略

Strategy of Fuzzy Intelligent Water Supply Based on Parameter Auto-tuning

针对一次性整定的PID参数难以保证供水控制系统的控制效果始终处于优化状态的问题,提出了一种基于参数自整定的模糊智能供水策略。采用该策略系统一旦偏离正常状态,在系统性能超过容许范围时,自动启动PID参数的整定过程进行在线参数模糊自整定,按照整定后的PID参数系统自动切换到正常工作状态。重新整定的PID参数可使供水系统达到更好的控制品质。仿真实验表明:实时修改控制器的参数可以保证控制系统具有优良的控制品质。

The control of water supply is a complex process,aimed at the puzzle that it is difficult to ensure the system being a optimizing status in control effect from beginning to end by disposable adjusting for PID parameter,the paper proposed a sort of fuzzy intelligent water supply strategy based on parameter auto-tuning of PID controller.By means of parameter auto-tuning,once the system would be deviated by the normal status,and the performance exceeded allowable range,then the tuning process of PID parameter would be started automatically so as to make the fuzzy auto-tuning for PID controller parameter.The system would be automatically switched into the normal work status,and the parameter after retuning the PID could make water supply system reach better control quality.The simulation experiment shows that by means of modifying controller parameter it can ensure the control system to own better control quality.