A new nested neutral point clamped (NNPC) converter for medium-voltage (MV) power conversion

Author

Narimani, Mehdi ; Bin Wu ; Cheng, Gordon ; Zargari, Navid

Author_Institution

Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada

fYear

2014

fDate

16-20 March 2014

Firstpage

2372

Lastpage

2377

Abstract

In this paper, a new Voltage Source Converter (VSC) for Medium Voltage (MV) applications is presented which can operate over a wide range of voltages (2.4kV-7.2KV) without the need for connecting power semiconductor in series. The operation of the proposed converter is studied and analysed. In order to control the proposed converter, a Space Vector Modulation (SVM) strategy which benefits from the switching state redundancy has been used. This strategy helps to control the output voltage and stabilize voltages of the flying capacitors in the proposed converter. Performance of the converter under different operating conditions is investigated in the MATLAB/Simulink environment.

Keywords

power capacitors; power convertors; voltage control; MATLAB-Simulink environment; NNPC converter; VSC; flying capacitors; medium-voltage power conversion; nested neutral point clamped converter; output voltage control; power semiconductor; space vector modulation strategy; switching state redundancy; voltage 2.4 kV to 7.2 kV; voltage source converter; Capacitors; Inverters; Medium voltage; Support vector machines; Switches; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2014 Twenty-Ninth Annual IEEE

Conference_Location

Fort Worth, TX

Type

conf

DOI

10.1109/APEC.2014.6803635

Filename

6803635