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中文摘要：
采用多变量解耦内模控制（IMC）方法,对强耦合、大惯性、大迟延的机组协调控制系统进行设计。通过构造期望的闭环传递函数矩阵,使模型求逆产生的预测项和右半平面极点得到补偿,从而使设计的P规范型解耦内模控制器稳定、可行。该控制器设计方法简单,便于参数调节,解耦效果好。针对660 MW机组简化负荷-压力动态模型进行解耦IMC设计,并通过仿真试验验证控制系统的抗干扰性能及模型失配下的鲁棒性。结果表明,基于多变量解耦IMC的协调控制系统提高了对机组负荷的响应速度,减小了主蒸汽压力的动态偏差,系统控制品质较优。
英文摘要：
The multivariable decoupling internal model control（IMC）method was employed to design the unit coordinated control system with strong coupling,great inertia and large time delays.By constructing the desired closed-loop transfer function matrix,the prediction and right half plane pole produced by the inversion of the model were compensated.Then the stable and realizable P-norm decoupling internal model controller can be designed.This controller has simple design method,good decoupling effect and its parameter is easy to regulate.Taking a 660 MW unit as the object,this decoupling IMC design method was applied in the simplified load-pressure dynamic model.Moreover,the anti-interference of the control system and robustness of model mismatch were verified.The simulation results show that,the decoupling IMC based coordinated control system accelerates the load response speed and reduces the dynamic deviation of the main steam pressure.
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