Earticle

초록

영어

New voltage-based on-line fault detection and faulty switch identification algorithms under multiple open-switches in a grid-connected wind power converter are proposed in this paper. The proposed algorithms are based on the three-phase voltages which are calculated by using the DC link voltage and switching times determined from the space vector PWM scheme. From the calculated three-phase voltages, the absolute of average phase voltage and normalized three-phase RMS voltages are obtained to be used for the fault detection and faulty switch identification algorithms in three-phase AC/DC PWM converter. To determine faulty switches, three-phase voltages and RMS currents are taken as faulty switch localization variables. The complete diagnosis is carried out by a simple method during operation, which does not require any additional sensors. Therefore, the proposed methods are cost-effective and easy to use. To verify the validity and performance of the proposed algorithms, the simulation is carried out using the PSIM software for twenty-one cases of faults including multiple open-switches. As a result, the proposed scheme can effectively detect the occurrence of fault as well as faulty switches for these conditions independent of operating conditions.

목차

Abstract
 1. Introduction
 2. Proposed Fault Detection Method
 3. Proposed faulty Switch Identification Algorithm
 4. Simulation Results
 5. Conclusions
 Acknowledgements
 References

키워드

저자

• Partha Sarati Das [ Department of Electrical and Information Engineering Seoul National University of Science and Technology 232 Gongneung-ro, Nowon-gu, Seoul, 139-743, Korea ]
• Kyeong-Hwa Kim [ Department of Electrical and Information Engineering Seoul National University of Science and Technology 232 Gongneung-ro, Nowon-gu, Seoul, 139-743, Korea ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605