Adaptive Fault Detection Based on Neural Networks and Multiple Sampling Points for Distribution Networks and Microgrids
Journal of modern power systems and clean energy(2022)
摘要
Smart networks such as active distribution net-work(ADN)and microgrid(MG)play an important role in power system operation.The design and implementation of ap-propriate protection systems for MG and ADN must be ad-dressed,which imposes new technical challenges.This paper presents the implementation and validation aspects of an adap-tive fault detection strategy based on neural networks(NNs)and multiple sampling points for ADN and MG.The solution is implemented on an edge device.NNs are used to derive a data-driven model that uses only local measurements to detect fault states of the network without the need for communication infra-structure.Multiple sampling points are used to derive a data-driven model,which allows the generalization considering the implementation in physical systems.The adaptive fault detector model is implemented on a Jetson Nano system,which is a sin-gle-board computer(SBC)with a small graphic processing unit(GPU)intended to run machine learning loads at the edge.The proposed method is tested in a physical,real-life,low-voltage network located at Universidad del Norte,Colombia.This test-ing network is based on the IEEE 13-node test feeder scaled down to 220 V.The validation in a simulation environment shows the accuracy and dependability above 99.6%,while the real-time tests show the accuracy and dependability of 95.5%and 100%,respectively.Without hard-to-derive parameters,the easy-to-implement embedded model highlights the potential for real-life applications.
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关键词
Distribution network,microgrid,adaptive pro-tection,intelligent electronic device,machine learning
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