Intelligent Detection of the Location of Voltage Flicker in Active Distribution Networks Using ANN
الموضوعات :
Mojtaba Ajoudani
1
,
سید رضا مسیببی
2
1 - گروه مهندسی برق، واحد بندرگز، دانشگاه آزاد اسلامی، بندرگز، ایران
2 - دانشگاه آزاد اسلامی واحد بندرگز
الکلمات المفتاحية: S-Transform, Artificial Neural Network, Distribution Network, Voltage Flicker, Power Quality.,
ملخص المقالة :
This article presents a new method for detecting the location of voltage flicker in active distribution networks. By measuring and sampling the voltage of the buses, the flicker detection index is extracted from the information on the amplitude and frequency of the voltages. The extraction of this index is based on the new frequency-time transformation S (S-Transform) which is used to detect the presence of flicker. The obtained index has been used to train a neural network to detect the polluting location. The input of the neural network is the measured indicator of voltage flicker in the buses, and the output of the neural network is the state of all the buses in terms of flicker occurrence. The proposed method has been tested on a sample 14-bus network. EMTP/ATP software has been used to simulate flicker in the power network. The simulation results show that by choosing the appropriate location of the measurements in the network, with a small number of measurements, buses or areas where the polluting load is located can be intelligently identified.
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