基于前馈增益调度的火电机组协调控制及应用  

Coordinated Control and Application of Thermal power Units Based on Feedforward Gain Scheduling

作　　者：郑见云 史耕金 王佑 薛亚丽[2,3] ZHENG Jian-yun;SHI Geng-jin;WANG You;XUE Ya-li(Guoneng Shenwan Energy Co.,Ltd.,Hefei Anhui 230051,China;State Key Lab of Power Systems,Department of Energy and Power Engineering,Tsinghua University,Beijing 100084,China;Shanxi Research Institute for Clean Energy,Tsinghua University,Taiyuan Shanxi 030006,China)

机构地区：[1]国能神皖能源有限责任公司,安徽合肥230051 [2]清华大学能源与动力工程系电力系统国家重点实验室,北京100084 [3]清华大学山西清洁能源研究院,山西太原030006

出　　处：《计算机仿真》2023年第11期96-100,106,共6页Computer Simulation

基　　金：国家自然科学基金(51876096);国家能源集团2030先导项目(GJNY2030XDXM-19-08.1)。

摘　　要：电力系统结构转型对燃煤发电机组提出宽负荷范围内快速调峰的需求,但机炉协调系统具有强非线性、大惯性和未知扰动,传统的比例-积分-微分(PID)控制适应机组大范围变工况能力较弱,在非设计工况及未知扰动下控制品质有待提高。针对上述问题,提出一种基于前馈增益调度的自抗扰协调控制策略,利用前馈信号提高系统适应负荷变化的能力,通过改进的自抗扰控制器提高系统的设定值跟踪和抗扰能力。仿真与现场试验结果均表明提出的协调控制策略能够获得良好的控制效果,保证机组的高效运行。The structural transformation of power systems requires coal-fired power generators to quickly adjust peak load within a wide range of load.However,the boiler-turbine coordinated system is highly nonlinear,has large inertia,and is subject to unknown disturbances.Traditional proportional-integral-derivative(PID)control has weak a-daptability to large-scale varying operating conditions of the unit,and its control quality needs to be improved under off-design operation conditions and unknown disturbances.To solve these problems,this paper proposed a feedforward gain scheduling based active disturbance rejection control(ADRC)for coordinated control system.The feedforward gain scheduling can reduce the influence of variation of load and the improved ADRC can obtain better set-point tracking and disturbance rejection ability.The simulation and field test indicate that the method proposed in this paper can achieve control effect and ensure the efficient operation of the unit.

关 键 词：火电机组 协调控制 增益调度 前馈 

分 类 号：TM743[电气工程—电力系统及自动化]