基于电网模型的汽轮机调速系统模型参数辨识方法  

Parameter Identification Method of Turbine Speed Governor System Based on Power Grid Model

作　　者：任曼曼 丁磊 解振洋 邓竞蓝 周璇 REN Manman;DING Lei;XIE Zhenyang;DENG Jinglan;ZHOU Xuan(State Grid Anhui Electric Power Co.,Ltd.Electric Power Research Institute,Hefei 230601,China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院,安徽合肥230601

出　　处：《安徽电气工程职业技术学院学报》2024年第3期80-89,共10页Journal of Anhui Electrical Engineering Professional Technique College

摘　　要：针对PSD-BPA、PSASP等电力系统仿真软件对汽轮机调速系统模型参数难以实现自动辨识,而采用手动校核工作量大的问题,文章基于MATLAB仿真平台,在单机无穷大系统模型的基础上,建立了考虑电网设备的汽轮机调速系统参数辨识模型,并采用非线性最小二乘算法对模型参数进行辨识。仿真实例表明,MATLAB辨识获得的参数在BPA软件中仿真获得相同效果,证明了文章提出的仿真模型与BPA仿真模型等效,采用文章提出的方法能大大减轻BPA手动校核参数的工作,提高模型参数的有效性和调速系统建模工作的效率。To address the difficulty in automatically identifying model parameters of turbine speed governor systems in power system simulation software such as PSD-BPA and PSASP,which requires manual verification and involves substantial workload,this paper establishes a parameter identification model for turbine speed governor system that considers grid equipment.This model is based on a single machine infinite system model and utilizes MATLAB simulation platform and the model parameters are identified by using a nonlinear least squares algorithm.The simulation example shows that the parameters identified using MATLAB produce identical results when simulated in BPA software,confirming the equivalence of the simulation model proposed in this paper with the BPA simulation model.Utilizing the proposed model can significantly reduce the manual verification work required for BPA,enhancing the effectiveness of model parameters and the efficiency of governor system modeling tasks.

关 键 词：汽轮机调速系统 单机无穷大系统 参数辨识模型 参数辨识 非线性最小二乘算法 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程] TM621[电气工程—电力系统及自动化]