燃煤锅炉供热系统的模糊控制

介绍燃煤锅炉供热系统的自动化节能模糊控制方案,燃煤锅炉供热系统是一个大惯性的滞后系统,传统的单纯PID控制效果不理想,而基于工人熟练的经验和专家知识的模糊控制能够达到比较好的效果。系统中对控制参考量水温和炉膛负压这两个输入量模糊化处理,由控制规则推出输出模糊子集,再应用模糊推理合成规则得出PID的系数,PID控制器根据输出量来控制鼓风机、引风机、炉排电机和水泵的变频器。

The Fuzzy Logic Control Strategy for Boiler Heating System

This paper mainly introduces the energy-saving fuzzy logic control strategy for coal-fired boiler heating system.The coalfired boiler heating is a great inertial pure lagging system.The traditional PID control,which is based on linear,is often hard to obtain the optimal control effect.But the fuzzy control can do basing on the experience of workers and expertise.It describes the fuzzy control towards out-water temperature and the boiler the combustion tube pressure of the boiler heating system,including fuzziness of input,setting-up of fuzzy control rules and certainty of outputs.All the controlled objects are electrical motors,which are droved by the optimal frequency converter.