电站锅炉喷水减温系统控制方案的改进

The Improvement on Control Scheme of Boiler Desuperheating System in Power Plant

针对电站锅炉喷水减温系统存在的纯迟延环节,构造了一个改进的Smith预估器,通过仿真试验表明该Smith预估器对于模型参数的变化具有很强的适应能力,可以克服传统的PID调节方法可能造成系统的不稳定性。

In view of the pure delay in boiler desuperheating system in power plant, an advanced Smith predictor is proposed in this paper.The simulation shows that the Smith predictor has strong robustness with the variant model parameter and can overcome the instability due to conventional PID adjust method.