Technical gazette, Vol. 27 No. 6, 2020.
Original scientific paper
https://doi.org/10.17559/TV-20200916115647
On-Line Monitoring and Fault Diagnosis of Box Transformer Substation Based on VPRS-RBFNN
Erbao Xu*
orcid.org/0000-0002-0512-899X
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Yan Li
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Mingshun Yang
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Renhao Xiao
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Hairui Lin
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Xinqin Gao
; School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China
Abstract
Box transformer substation (BTS) is an important power distribution environment. To ensure the safe and stable operation of the power distribution system, it is critical to monitor the BTS operation and diagnose its faults in a reliable manner. In the Internet of Things (IoT) environment, this paper aims to develop a real-time and accurate online strategy for BTS monitoring and fault diagnosis. The framework of our strategy was constructed based on the IoT technique, including a sensing layer, a network layer and an application layer. On this basis, a BTS fault diagnosis method was established with variable precision rough set (VPRS) as the pre-network and the radial basis function neural network (RBFNN) as the back-fed network. The VPRS and the RBFNN were selected, because the BTS faults have many characteristic parameters, with complex nonlinear relationship with fault modes. Finally, a prototype of our strategy was developed and applied to the fault diagnosis of an actual BTS. The results fully demonstrate the effectiveness and feasibility of our strategy.
Keywords
box transformer substation (BTS); radial basis function neural network (RBFNN); the Internet of Things (IoT); variable precision rough set (VPRS)
Hrčak ID:
248248
URI
Publication date:
19.12.2020.
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