火电厂主汽温的内模控制(IMC)仿真试验研究表明:在没有加限幅器之前其控制效果要远远优于PID控制,但是其控制量过大,难以在实际中应用。通过限幅器可把控制量限制在可实现范围内,其控制效果虽然变差,但仍比PID控制好得多。由此可见,将IMC控制用于火电厂主汽温控制的开发研究仍是具有实际意义的。 Simulation study of internal temperature control (IMC) of main steam temperature in thermal power station shows that the control effect is far superior to PID control without limiter, but the control amount is too large, so it is difficult to be applied in practice. Through the limiter can limit the amount of control within the achievable range, the control effect though worse, but still much better than the PID control. Thus, the development and application of IMC control for main steam temperature control in thermal power plant is still of practical significance.