1000MW超超临界机组协调系统的线性自抗扰控制

Linear Active Disturbance Rejection Control on Coordinated System of a 1000 MW Ultra-supercritical Power Unit

以某1000MW超超临界机组为研究对象,设计了以"炉跟机协调方式"为基础的双线性自抗扰协调控制器.基于Matlab编写LADRC实时控制算法,利用UDP/IP协议与该机组全范围仿真机双向通讯,进行详细的变负荷扰动控制仿真实验.结果表明:无论是负荷跟随能力还是主蒸汽压力稳定性,线性自抗扰控制器对该机组的协调控制效果均明显优于传统PID控制器.

Taking a 1000 MW ultra-supercritical power unit as an object of study,a new coordinated control scheme was developed for the unit based on linear active disturbance rejection controller(LADRC)in the mode of'coordination control of boiler following(CCBF)',with two LADRCs respectively for the boiler and the steam turbine.The proposed control strategy was programmed with Matlab,and the twoway data communication between the control program and the full-scope simulator of the given 1000 MW power unit was achieved with UDP/IP protocol.Simulation tests under load disturbance were carried out for the unit.Results show that the proposed LADRC-based control scheme is significantly superior to the original PID controller in the control effect of both the load-following capability and the main steam pressure stabilization.