Three-level NPC inverter fault diagnosis by the Average Current Park´s Vector approach

Author

Abadi, Mohsen Bandar ; Mendes, A.M.S. ; Cruz, S.M.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Coimbra & Inst. of Telecomun., Coimbra, Portugal

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

1893

Lastpage

1898

Abstract

This paper presents a diagnosis method for the detection and location of open-circuit faults in 3-Level NPC inverters with SVPWM modulation scheme based on even-order harmonic elimination. The performance of the NPC inverter under normal and faulty conditions is firstly investigated both by simulation and experiments. Afterwards, a method for inverter diagnosis is proposed, based on the Average Current Park´s Vector. This method proved to be capable of detecting and locating the phase and the semiconductor pair where the faulty IGBT is located.

Keywords

PWM invertors; fault diagnosis; insulated gate bipolar transistors; power bipolar transistors; power conversion harmonics; SVPWM modulation scheme; average current park vector approach; even-order harmonic elimination; faulty IGBT; open-circuit faults; semiconductor pair; three-level NPC inverter fault diagnosis; Circuit faults; Fault diagnosis; Induction motors; Insulated gate bipolar transistors; Inverters; Switches; Vectors; 3-Level NPC inverters; Average Current Park´s Vector; Fault diagnosis; open-circuit Faults;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2012 XXth International Conference on

Conference_Location

Marseille

Print_ISBN

978-1-4673-0143-5

Electronic_ISBN

978-1-4673-0141-1

Type

conf

DOI

10.1109/ICElMach.2012.6350140

Filename

6350140