Sampling Rate Impact on Estimation of Untransposed Transmission Line Parameters Based on Fault Records

Journal of control, automation and electrical systems

article

da Costa, Eduardo C. M.¹  Kurokawa, Sergio²  Monaro, Renato M.¹  Di Santo, Silvio G.¹ 

[1] Universidade de São Paulo;Universidade Estadual Paulista

关键词: Sampling rate;    Parameter estimation;    Line parameters;    Synchronized measurements;    Fault records;   

DOI  :  10.1007/s40313-018-0378-7

学科分类：自动化工程

来源: Springer

【 摘 要 】

This paper highlights the sampling rate impact over an estimation method based on modal analysis techniques applied on untransposed three-phase transmission line. The analysed method represents a transmission system in the modal domain as three independent propagation modes that are modelled as three single-phase transmission lines using a suitable $$\pi $$ π equivalent. The estimation procedure is carried out in the modal domain, without the explicit modelling of the phase mutual parameters, which means a significant simplification on the calculation process using the least-square solution method. Since the modal parameters are identified, the self- and mutual parameters can be calculated using the same modal transformation matrix during the line decoupling. The method estimation accuracy is evaluated for a range of sampling rate associated with the relays records.

【 授权许可】

CC BY