Direct power control strategy used in three-level NPC converters

Author

Li Ning ; Wang Yue ; Li Su ; Li Yufei ; Wang Zhao´an

Author_Institution

Dept. of Electr. Eng., Xi´an Jiaotong Univ., Xi´an, China

Volume

3

fYear

2012

fDate

2-5 June 2012

Firstpage

1675

Lastpage

1679

Abstract

In this paper, direct power control strategy used in three-level neutral point clamped (NPC) converters is discussed. With the theory of instantaneous power, it gets the deep relations between power (active power and reactive power) and space voltage vectors. After the analysis, considering the special issues in three-level NPC converters, such as the excessive dv/dt and fluctuation of neutral point potential, a direct power control (DPC) strategy for three-level NPC converters is proposed. Simulation results show the correctness of the new DPC control strategy.

Keywords

matrix algebra; power control; power convertors; DPC control strategy; active power; direct power control strategy; instantaneous power theory; reactive power; space voltage vectors; three-level NPC converters; three-level neutral point clamped converters; Equations; IEEE Potentials; Mathematical model; Power control; Reactive power; Vectors; Voltage control; DPC strategy; excessive dv/dt; fluctuation of neutral point potential; three-level NPC converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6259087

Filename

6259087