Partial Discharge Analysis in Generator Stator Winding Using Artificial Neural Network
Journal Title: روش های هوشمند در صنعت برق - Year 2014, Vol 5, Issue 20
Abstract
This paper analyses the Partial Discharge (PD) on the stator terminals of synchronous generator. This is necessary to collect experimental data for the analysis. First, exploiting the measurement devices, special signals that describe the partial discharges are repeatedly collected. Then, based on the current standards, the collected empirical data are subjected to interpretation. To ease the interpretation process, an Artificial Neural Network is trained and validated. We have used a double layers forward perceptron neural network which is trained by Levenberg–Marquardt algorithm that utilizes least square method as the performance index. As the case study, three gas turbine-generators located in Shahre-Rey power plant (Rey Power Generation Management Company) have been subjected to repeatedly data collection. The mentioned generators are manufactured by Mitsubishi with 85 MW of nominal power. Generally, partial discharge analysis has the following practical implication about the probable defects: lamination of the internal terminal, mobility within the main insulation and discharge into the groove in stator of synchronous generator.
Authors and Affiliations
Seyed Meisam Ezzati, Faramarz Faghihi, Ali Moarefian poor
Design and Simulation of a High Step-up Three Level Boost Converter with Coupled-Inductor and Passive Clamp
Recent developments in renewable energy sources has created demands for high step-up and high efficiency DC-DC converters. This demands are fulfilled basically through the use of high frequency transformer to achieve the...
Design and Fabrication of Novel Single- and Dual-band Bandpass Filters with Modern Zero-Degree Feed Structure for Wireless Communications
In this paper, there are three novel bandpass filters (BPFs), consist of single- and dual-band, presented in a same size, which all the filters, have been designed, optimized and finally fabricated and measured, based on...
Design and Simulation of a Compact UWB MIMO Antenna with Mutual Coupling Reduction
In this paper, A compact multiple-input-multiple-output (MIMO) antenna with a small size of 26×31mm2 is proposed for portable ultrawideband (UWB) applications. The antenna consists of two square-monopole antenna with mic...
Frequency Control in Autanamous Microgrid in the Presence of DFIG based Wind Turbine
Despite their ever-increasing power injection into power grid, wind turbines play no role in frequency control. On the other hand, power network frequency is mainly adjusted by conventional power plants. DFIG-based wind...
Design and Implementation of a Web-based Greenhouse Remote Monitoring System with Zigbee Protocol and GSM Network
In modern and big greenhouses, it is necessary to measure several climate parameters to automate and control the greenhouse properly. Monitoring and transmitting by cable may lead to an expensive and stiff measurement sy...