Harmonics and interharmonics in general VSI/CSI inverters: analysis, modeling and simulation

Author

Amrei, S. R Hadian ; Xu, D.G. ; Lang, Y.Q.

Author_Institution

Dept. of Electr. Eng., Harbin Inst. of Technol., China

fYear

2005

fDate

14-17 Dec. 2005

Firstpage

75

Lastpage

80

Abstract

The effects of interharmonics, which are defined as non-integer multiples of fundamental or switching frequencies in power utility connected VSI/CSI systems, are different from integer harmonics. A new approach is proposed in this paper based on the "non-linear modulator" concept to describe the generation of harmonics and interharmonics in generalized power converters. Subsequently, the analytical model is concluded and analyzed for conventional d-q rotating reference frame controller in VSI converter. Moreover, effects of feedback control strategy and additional compensation blocks are considered. Analysis validation is also confirmed by simulation results.

Keywords

electricity supply industry; invertors; power convertors; power system harmonics; CSI inverters; VSI inverters; additional compensation blocks; conventional d-q rotating reference frame; feedback control strategy; generalized power converters; integer harmonics; interharmonics; noninteger multiples; nonlinear modulator; power utility; switching frequencies; Active filters; Analytical models; Frequency conversion; Harmonic analysis; Inverters; Power generation; Power harmonic filters; Power system harmonics; Power system modeling; Switching frequency; CSI; Interharmonics; Non-Linear Modulator; PCC; PWM signal; VSI;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology, 2005. ICIT 2005. IEEE International Conference on

Print_ISBN

0-7803-9484-4

Type

conf

DOI

10.1109/ICIT.2005.1600613

Filename

1600613