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An Intelligent Method Based on WNN for Estimating Voltage Harmonic Waveforms of Non-monitored Sensitive Loads in Distribution Network | ||
| Journal of Operation and Automation in Power Engineering | ||
| مقاله 2، دوره 6، شماره 1، شهریور 2018، صفحه 13-22 اصل مقاله (929.25 K) | ||
| نوع مقاله: Research paper | ||
| شناسه دیجیتال (DOI): 10.22098/joape.2018.3533.1280 | ||
| نویسندگان | ||
| A. ِDeihimi* 1؛ A. Rahmani2 | ||
| 1Bu-Ali Sina University, Department of Electrical Engineering | ||
| 2Bu-Ali Sina University, Department of Electrical Engineering, | ||
| چکیده | ||
| An intelligent method based on wavelet neural network (WNN) is presented in this study to estimate voltage harmonic distortion waveforms at a non-monitored sensitive load. Voltage harmonics are considered as the main type of waveform distortion in the power quality approach. To detect and analyze voltage harmonics, it is not economical to install power quality monitors (PQMs) at all buses. The cost associated with the monitoring procedure can be reduced by optimizing the number of PQMs to be installed. The main aim of this paper is to further reduce the number of PQMs through recently proposed optimum allocation approaches. An estimator based on WNN is presented in this study to estimate voltage-harmonic waveforms at a non-monitored sensitive load using current and voltage at a monitored location. Since capacitors and distributed generations (DGs) have a special role in distribution networks, they are considered in this paper and their effects on the harmonic voltage waveform estimator are evaluated. The proposed technique is examined on the IEEE 37-bus network. Results indicate the acceptable high accuracy of the WNN estimator. | ||
| کلیدواژهها | ||
| Distributed network؛ Power quality monitoring؛ Voltage harmonic؛ Wavelet neural network | ||
| مراجع | ||
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