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提出了在汽轮机状态估计检测中应用结合Givens正交变换的Levenberg-Marquardt(LM)算法的思想。将LM算法应用于300 MW再热凝汽式汽轮机,应用结果表明,在大范围的测量误差和测量冗余比率下,结合Givens正交变换的LM算法进行汽轮机状态估计检测具有良好的稳定性。
The idea of applying Levenberg-Marquardt (LM) algorithm combined with Givens orthogonal transform in turbine state estimation is proposed. The LM algorithm is applied to a 300 MW reheat condensing steam turbine. The application results show that the LM algorithm combined with Givens orthogonal transform has good stability for turbine state estimation over a wide range of measurement errors and measurement redundancy ratios.