Young-Jong Ko and Kyo-Beum Lee, “Fault Diagnosis of a Voltage-Fed PWM Inverter for a Three-Parallel Power Conversion System in a Wind Turbine,” Journal of Power Electronics, vol. 10, no. 6, pp. 686–693, Nov. 2010. -SCIE > Paper

In this paper, a fault diagnosis method based on fuzzy logic for the three-parallel power converter in a wind turbine system is

presented. The method can not only detect both open and short faults but can also identify faulty switching devices without 

additional voltage sensors or an analysis modeling of the system. The location of a faulty switch can be indicated by six-patterns 

of a stator current vector and the fault switching device detection is achieved by analyzing the current vector. A fault tolerant 

algorithm is also presented to maintain proper performance under faulty conditions. The reliability of the proposed fault 

detection technique has been proven by simulations and experiments with a 10kW simulator.