基于Nelder-Mead单纯形法的汽轮机调速系统参数辨识

摘要

为了建立汽轮机调速系统准确模型，需要对模型进行参数测试及辨识。根据建模导则推荐的汽轮机调速系统模型结构以及现场试验数据，采用具有算法简单、容易实现、对目标函数连续或可导无要求等特点的Nelder-Mead单纯形法对汽轮机调速系统参数进行辨识，并对辨识结果进行了仿真校核。结果表明：所使用的Nelder-Mead单纯形法辨识出的汽轮机调速系统参数模型满足精度要求，验证了此方法的实用有效性。%In order to establish the accurate model of steam turbine governing system, parameters test and identification of the model should be done separately. The Nelder-Mead Simplex(NMS), which has the advantages of simple , easily implement and the objective function needn't continuous or derivable, is applied to identify the parameters of turbine governing system based on the model framework of turbine governing system and the field test data. Simulation and verification on the parameters identified have researched. It shows that the turbine governing system parameter is identified by the NMS adopted in this paper can meet the requirement of accuracy. Therefore, the effectiveness of this method is verified.