Proceedings ArticleDOI
Harmonics and interharmonics in general VSI/CSI inverters: analysis, modeling and simulation
S.R.H. Amrei,D.G. Xu,Y.Q. Lang +2 more
- pp 75-80
TLDR
In this paper, a non-linear modulator concept is proposed to describe the generation of harmonics and interharmonics in generalized power converters, and the analytical model is concluded and analyzed for conventional d-q rotating reference frame controller in VSI converter.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.read more
Citations
More filters
Proceedings ArticleDOI
Correlation Study of Voltage Fluctuation and Inter-Harmonics in Distribution Network
TL;DR: In this article, the relationship between voltage fluctuation and inter-harmonics in distribution network based on modulation theory is investigated and verified by Matlab/Simulink simulation and physical tests.
Journal ArticleDOI
A DC‐side damping control method for power converters to suppress resonance in DC power network
Jin Xu,Yukihiko Sato +1 more
TL;DR: In this paper, a damping control method of power converters for suppression of resonance in DC power network is described, where the resonance occurs when a resonant frequency of the DC distribution line coincides with the frequency of harmonic or interharmonic components generated by the converters.
Journal ArticleDOI
Harmonic generation of variable speed drive under complex-voltage unbalance conditions
TL;DR: In this paper , the authors used statistical tools alongside synthesized models to deduce and compare outcomes from regulated and unregulated converters in which harmonics may be triggered by switching algorithm of modern switchmode power supplies and other inductive loads attached to supply bus system.
References
More filters
Proceedings ArticleDOI
Interharmonics in power systems
TL;DR: In this paper, the sources of interharmonic are discussed, chief among which is the cycloconverter, and the impacts of the interharmonics and the measurement of inter-harmonics are also discussed.
Journal ArticleDOI
Evaluation of current interharmonics from AC drives
TL;DR: The results show that very low interharmonic levels can be expected for a well designed PWM inverter operating with linear modulation and balanced load, and the relative effects of DC link inductance and source inductance onInterharmonic propagation.
Proceedings ArticleDOI
Harmonics and interharmonics estimation using advanced signal processing methods
TL;DR: In this paper, a novel approach to harmonic and interharmonic analysis, based on the subspace methods, is proposed, which is an example of high-resolution eigenstructure-based methods.
Proceedings ArticleDOI
Modelling of AC/DC/AC conversion systems with PWM inverter
TL;DR: In this paper, a new model is presented and discussed for modeling AC/DC/AC power conversion systems with PWM inverters, which is based on the modulation function theory and uses the iterative harmonic and interharmonic analysis (IHIA), taking advantage of a new inverter model.
Journal ArticleDOI
PWM Systems in Power Converters: An Extension of the ``Subharmonic'' Method
TL;DR: In this article, an extension of the subharmonic method for PWM systems, in the case in which the ratio between modulating and carrier wave amplitudes can be varied from 0 to?, is studied in an analytical way.
Related Papers (5)
Online Selective Harmonic Compensation and Power Generation With Distributed Energy Resources
Damoun Ahmadi,Jin Wang +1 more