将加热器变工况引入母管制电厂的给水优化调度中 ,通过理论推导 ,提出了母管制电厂优化给水调度的数学模型 ,得出了变工况下给水经济调度的方法。经现场实际使用 ,表明该方法是正确可行的 ,且经济效益显著 The heater working condition was introduced into the optimal control of feed water in the mother pipe plant. According to the theoretical derivation, the mathematical model of the optimal feed water regulation in the mother pipe plant was proposed, and the economic dispatching method under different working conditions was obtained. The actual use on the spot shows that the method is correct and feasible and has significant economic benefits