A Discontinuous Carrier-based PWM Modulation Method for the Control of the Neutral Point Voltage of Three-Phase Three-Level Diode Clamped Converters

Author

Ojo, Olorunfemi ; Konduru, Srikanth

Author_Institution

Dept. of Electr. & Comput. Eng., Tennessee Technol. Univ., Cookeville, TN

fYear

2005

fDate

16-16 June 2005

Firstpage

1652

Lastpage

1658

Abstract

The neutral-point voltage of the three-level, three-phase converter is regulated using a hysteresis controller which selects the appropriate expression for the zero sequence voltage signal which augments the modulation signal used in the discontinuous carrier-based PWM modulation scheme for voltage control. The analytical expressions for the zero sequence voltages are generalized to three sets making its DSP implementation very easy. Simulation and experimental results verify the usefulness of the proposed neutral-point regulation technique

Keywords

PWM power convertors; digital signal processing chips; voltage control; DSP implementation; discontinuous carrier-based PWM modulation method; hysteresis controller; neutral point voltage control; neutral-point regulation technique; three-phase three-level diode clamped converters; zero sequence voltage signal; zero sequence voltages; Capacitors; Control systems; Diodes; Phase modulation; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Stress; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th

Conference_Location

Recife

Print_ISBN

0-7803-9033-4

Type

conf

DOI

10.1109/PESC.2005.1581852

Filename

1581852