电站锅炉汽包水位系统的单神经元自适应PID控制

Single Neuron Adaptive PID Control for Water Level of Boiler Drum in Power Station

电站锅炉汽包水位间接地反映了锅炉负荷与给水平衡的关系,是电站发电机组运行的主要控制参数之一。本文提出了一种电站锅炉汽包水位系统的单神经元自适应PID控制策略。将蒸汽流量信号引入到单神经元网络中来考虑负荷变化对锅炉汽包水位的影响,使其具有前馈补偿能力,以消除“虚假水位”现象。仿真试验结果表明了该控制策略的有效性和实用性。

Water level of boiler drum in power station is one of the main control parameters for turbine-generator unit, which reflects the balance of boiler load and feed-water indirectly. Aiming to the water level control in power plant, a strategy of single neuron adaptive PID control is presented in this paper. It adopted the steam flux signal to the single neuron considering the influence of load changing,which has feed-forward compensation for steam flux disturbance and can avoid 'false water level' phenomenon. Simulation results show that this strategy is effective and practicable.