A Fault Diagnostic Method for Position Sensor of Switched Reluctance Wind Generator

- Journal title : Journal of Electrical Engineering and Technology
- Volume 11, Issue 1, 2016, pp.29-37
- Publisher : The Korean Institute of Electrical Engineers
- DOI : 10.5370/JEET.2016.11.1.029

Title & Authors

A Fault Diagnostic Method for Position Sensor of Switched Reluctance Wind Generator

Wang, Chao; Liu, Xiao; Liu, Hui; Chen, Zhe;

Wang, Chao; Liu, Xiao; Liu, Hui; Chen, Zhe;

Abstract

Fast and accurate fault diagnosis of the position sensor is of great significance to ensure the reliability as well as sensor fault tolerant operation of the Switched Reluctance Wind Generator (SRWG). This paper presents a fault diagnostic scheme for a SRWG based on the residual between the estimated rotor position and the actual output of the position sensor. Extreme Learning Machine (ELM), which could build a nonlinear mapping among flux linkage, current and rotor position, is utilized to design an assembled estimator for the rotor position detection. The data for building the ELM based assembled position estimator is derived from the magnetization curves which are obtained from Finite Element Analysis (FEA) of an SRWG with the structure of 8 stator poles and 6 rotor poles. The effectiveness and accuracy of the proposed fault diagnosis method are verified by simulation at various operating conditions. The results provide a feasible theoretical and technical basis for the effective condition monitoring and predictive maintenance of SRWG.

Keywords

Extreme learning machine;Fault diagnostics;Finite element analysis;Switched reluctance generator;

Language

English

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