Performance comparison of a new current regulator for 3-level NPC inverter for sinusoidal and non-sinusoidal current tracking applications

Author

Li, Jun ; Bhattacharya, Subhashish ; Huang, Alex

Author_Institution

North Carolina State Univ., NC

fYear

2008

fDate

10-13 Nov. 2008

Firstpage

879

Lastpage

884

Abstract

In this paper, a new current regulator is applied for a 3-level NPC inverter to achieve both current regulation and neutral-point voltage balance. The performance of the proposed current regulator is validated for both sinusoidal current tracking, such as for a 3-level NPC inverter based motor drive application, and also for non-sinusoidal current tracking, such as for active filter application. Performance comparison and current regulator design considerations are addressed for sinusoidal and non-sinusoidal current tracking applications. Detailed simulation results are presented for performance validation of the new current regulator for both cases and the RMS current error is used as a performance index for comparison.

Keywords

electric current control; invertors; power system control; 3-level NPC inverter; active filter; current regulation; current regulator; motor drive; neutral-point voltage balance; non-sinusoidal current tracking; Active filters; Circuits; Flexible AC transmission systems; Motor drives; Performance analysis; Pulse width modulation inverters; Regulators; Space vector pulse width modulation; Steady-state; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE

Conference_Location

Orlando, FL

ISSN

1553-572X

Print_ISBN

978-1-4244-1767-4

Electronic_ISBN

1553-572X

Type

conf

DOI

10.1109/IECON.2008.4758069

Filename

4758069