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Title: Border collision of three-phase voltage-source inverter system with interacting loads
Authors: Li, Z
Liu, B
Li, Y
Wong, SC 
Liu, X
Huang, Y
Keywords: Bifurcation
Border collision
Interacting loads
Stability boundary
Three-phase voltage-source inverter
Issue Date: 2016
Publisher: World Scientific
Source: International journal of bifurcation and chaos in applied sciences and engineering, 2016, v. 26, no. 8, 1650132, p. 1-10 How to cite?
Journal: International journal of bifurcation and chaos in applied sciences and engineering 
Abstract: As a commercial interface, three-phase voltage-source inverters (VSI) are commonly equipped for energy conversion to export DC power from most distributed generation (DG) to the AC utility. Not only do voltage-source converters take charge of converting the power to the loads but support the grid voltage at the point of common connection (PCC) as well, which is dependent on the condition of the grid-connected loads. This paper explores the border collision and its interacting mechanism among the VSI, resistive interacting loads and grids, which manifests as the alternating emergence of the inverting and rectifying operations, where the normal operation is terminated and a new one is assumed. Their mutual effect on the power quality under investigation will cause the circuital stability issue and further deteriorate the voltage regulation capability of VSI by dramatically raising the grid voltage harmonics. It is found in a design-oriented view that the border collision operation will be induced within the unsuitable parameter space with respect to transmission lines of AC grid, resistive loads and internal resistance of VSI. The physical phenomenon is also identified by the theoretical analysis. With numerical simulations for various circuit conditions, the corresponding bifurcation boundaries are collected, where the stability of the system is lost via border collision.
ISSN: 0218-1274
EISSN: 1793-6551
DOI: 10.1142/S0218127416501327
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