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１２５ＭＷ机组配套的ＳＧ－４２０／１３．７－Ｍ４１８型锅炉二级减温器后受热面较大，管道较长，因此惯性大，用常规的控制系统控制品质较差，改用状态空间法，借助状态观察器，用状态反馈法组成汽温控制系统取得了很好的成果。
After the 125MW unit SG-420 / 13.7-M418 boiler secondary desuperheater heating surface larger, longer pipes, so the inertia, with the conventional control system to control the quality of the poor, the use of state space method, With the state observer, the state feedback system composed of steam temperature control system has achieved good results.