Evaluation of Multivariable Modeling Methods for Monitoring the Health of Guyed Towers in Overhead Power Lines

Sensors

卷:21

Eduardo Rodrigues de Lima¹  Alexandre Schalch Mendes²  Pablo Siqueira Meirelles²  Eurípedes Guilherme de Oliveira Nóbrega²  Janito Vaqueiro Ferreira²  Larissa Medeiros de Almeida³ 

[1] Exploratory Hardware Design Department, Instituto de Pesquisas Eldorado, Campinas 13083-898, Brazil;

[2] Faculty of Mechanical Engineering, Universidade Estadual de Campinas, Campinas 13083-970, Brazil;

[3] Transmissora Aliança de Energia Elétrica S.A., Rio de Janeiro 20010-010, Brazil;

关键词: IoT;    power lines;    guyed towers;    sensor fusion;    Kalman filter;   

DOI  :  10.3390/s21186144

来源: DOAJ

【 摘 要 】

This article proposes a methodology for monitoring the structural stability of each tower of an electric power transmission line through sensor measurements which estimates the different situations that may indicate the need for intervention to prevent the structure collapsing. The extended Kalman filter was adopted to predict the failures, considering sensor fusion techniques such as the displacements of the upper central position of the tower above certain limits. The load of the stay cables is calculated from the natural frequencies, which are determined by the accelerometers connected to the cables. The average value of these forces, which must be higher than a normal limit, were calculated to predict a failure. All guyed towers of a power transmission line thousands of kilometers long will be individually monitored considering the methodology described in this study, which makes this article one of the first relevant research studies in this area. Typically, guyed towers must often be manually inspected to ensure that the stay cables have acceptable pretension to prevent a lack of stability in the transmission line towers.

【 授权许可】

Unknown