Title :
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
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;
Conference_Titel :
Industrial Technology, 2005. ICIT 2005. IEEE International Conference on
Print_ISBN :
0-7803-9484-4
DOI :
10.1109/ICIT.2005.1600613
