New Stationary Frame Transformation for Control of a Three-Phase Power Converter Under Unbalanced Grid Voltage Sags

Autor:	Pawel Maciejewski, Tomasz Luszczyk, Grzegorz Iwanski
Rok vydání:	2021
Předmět:	Transformation (function) Three-phase Computer science Power electronics Control system Frame (networking) Energy Engineering and Power Technology Waveform Electrical and Electronic Engineering Topology Voltage Power (physics)
Zdroj:	IEEE Journal of Emerging and Selected Topics in Power Electronics. 9:4432-4446
ISSN:	2168-6785 2168-6777
DOI:	10.1109/jestpe.2020.3012971
Popis:	This article deals with a new nonlinear transformation providing representation of unbalanced three-phase signals (voltage and currents) as vectors that have constant components in a new rotating ${d}'{q}'$ frame. Using the proposed transformations, the control system of a power electronic converter operating with an unbalanced grid can be equipped with proportional–integral (PI) controllers, without the use of resonant terms, for which antiwindup structures are more complicated and nonintuitive. This article presents the derivation of new direct and inverse transformations, features, a power converter model in a new frame, simulation results showing the waveforms of signals transformed to the new non-Cartesian frame, and simulation and experimental results of the voltage-oriented control for a grid-connected power converter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::26977d728a39383ba2c38e78ff4a88df https://doi.org/10.1109/jestpe.2020.3012971 Zobrazit plný text záznamu