Least squares estimation-based synchronous generator parameter estimation using PMU data
Least squares estimation-based synchronous generator parameter estimation using PMU data
复制标题
使用 PMU 数据进行基于最小二乘估计的同步发电机参数估计
DOI:
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Zhixin Miao
中科院分区:
文献类型:
--
作者:
Bander Mogharbel;Lingling Fan;Zhixin Miao
In this paper, least square estimation (LSE)-based dynamic generator model parameter identification is investigated. Electromechanical dynamics related parameters such as inertia constant and primary frequency control droop for a synchronous generator are estimated using Phasor Measurement Unit (PMU) data obtained at the generator terminal bus. The key idea of applying LSE for dynamic parameter estimation is to have a discrete autoregression with exogenous input (ARX) model. With an ARX model, a linear estimation problem can be formulated and the parameters of the ARX model can be found. This paper gives the detailed derivation of converting a generator model with primary frequency control into an ARX model. The generator parameters will be recovered from the estimated ARX model parameters afterwards. Two types of conversion methods are presented: zero-order hold (ZOH) method and Tustin method. Numerical results are presented to illustrate the proposed LSE application in dynamic system parameter identification using PMU data.
影响因子:
6.6
作者:
Burth, M;Verghese, GC;Vélez-Reyes, M
通讯作者:
Vélez-Reyes, M