基于MCP-PID控制器的电站锅炉汽温控制

Superheated Steam Temperature Control System of a Power Plant with the MCP-PID Controller

针对应用常规PID控制电站锅炉汽温过程时大负荷变动下的控制品质不佳问题,研究了应用具有高鲁棒性的MCP-PID控制器的可行性。为考察新控制器用于汽温控制的变负荷适应性,特别设计了用按某点负荷过程模型设计的控制器去控制多点负荷汽温过程的仿真试验。仿真试验结果表明:与用常规PID控制相比,MCP-PID汽温控制具有超调量小、调整时间短、扰动抑制强和变负荷适应性强的优势。

According to the poor performance of the conventional PID control when the boiler steam temperature has large load change,the application feasibility of MCP-PID controller with high robust is studied. In order to observe the load change adaptability of the new controller which is designed with the process model at certain load,simulation tests are designed to control the process at some other loads. The simulation results show that the MCPPID steam temperature control has the characteristics of lower overshoot,shorter settling time,better anti-disturbance ability and higher load change adaptability comparing with PID.