Intelligent Risk Evaluation of Transmission Line Icing Based on Bayesian ANFIS

Huang, Yali; Ma, Tiannan; Wu, Meiqiong; Niu, Dongxiao

doi:10.2991/iceep-16.2016.45

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…In this study, the range of icing load of the "Tao Luo Xiong" transmission line must be equal or less than 1200kg, otherwise greater than the limits may damage the equipment or device on whole transmission line, and there are five risk status of transmission line towers [25][26][27]. The functions and variables utilized in fuzzy logic controller are listed in Table 5.…”

Section: Evaluate Risk Status Using Fuzzy Inference Systemmentioning

confidence: 99%

Icing Load and Risk Forecasting for Power Transmission Line Based on Multi-scale Time Series Phase-Space Reconstruction and Regression

Chen¹,

Wang²,

Ren³

et al. 2021

IJSSE

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Accurately forecasting the icing load on overhead power transmission lines is an important issue to ensure the security and reliability of the power grid. A multi-scale time series phase-space reconstruction and regression model for icing load prediction is proposed in this paper to treat the non-stationary, nonlinear, and intermittent volatility of power line icing load data. Those is motivated by the traditional icing load prediction models having many disadvantages in the forecasting accuracy, as well as the casualness of the parameters selected. Firstly, the icing load data are decomposed into a multi-scale time series of intrinsic model function (IMF) components with stability by using the ensemble empirical mode decomposition (EEMD), which can reduce the interactions between different types of feature information. Secondly, phase-space reconstruction (PSR) theory is applied using the mutual information and the false nearest neighbor to determine the optimal delay time and embedding dimension of each IMF component. Thirdly, considering the characteristics of each IMF component, different kernel functions and optimization parameters are selected to establish the prediction model based support vector regression (SVR). Finally, according to the load prediction results, fuzzy reasoning method was used to determine the risk status of transmission line towers in this paper. Upon experimentally evaluating the validity of the model using related transmission lines of the Yunnan Power Grid, it is shown that this method could predict the real-time icing load on overhead power lines, obtaining better regression performance. This model could be used on power transmission and distribution systems for deicing and maintenance decisions.

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Section: Evaluate Risk Status Using Fuzzy Inference Systemmentioning

confidence: 99%

Icing Load and Risk Forecasting for Power Transmission Line Based on Multi-scale Time Series Phase-Space Reconstruction and Regression

Chen¹,

Wang²,

Ren³

et al. 2021

IJSSE

View full text Add to dashboard Cite

show abstract

“…However, manual inspection is limited by weather conditions, topography and other factors, making it difficult to grasp the ice cover situation in a real-time and comprehensive manner [2,3] . Although the sensor can provide partial ice-covering data, its coverage is limited, and it needs to be combined with the ice-covering model to reflect the overall ice-covering distribution and change law of the line [4,5] . Ice model construction method, based on ice thickness observation data and expert experience to establish a statistical model of ice growth or a mechanism model of ice growth based on meteorological conditions, is a more commonly used method.…”

mentioning

confidence: 99%