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IRREVERSIBLE BIFURCATION PHENOMENON IN POWER-GRID CONNECTED CONVERTER SYSTEMS
International Journal of Bifurcation and Chaos, 2012Three-phase voltage source converters (VSC) are commonly used to convert ac power from a three-phase grid to a regulated dc voltage with unity input power factor. The control of the VSC is normally achieved by an outer voltage feedback loop and a sinusoidal pulse-width-modulated (SPWM) inner current loop.
Wan, Cheng +4 more
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Robust PLL Algorithm for Three-Phase Grid-Connected Converters
EPE Journal, 2010AbstractThe estimation of the grid angle is a key factor in the control of many power electronics applications using grid-connected three-phase converters. The knowledge of the grid angle is required for different goals such as the synchronization of the voltage or current waveforms produced by the converter to the utility grid, the power flow ...
BELLINI, ARMANDO +2 more
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Power control for grid-connected converter to comply with safety operation limits during grid faults
European Conference on Cognitive Ergonomics, 2016This paper presents a new power control strategy of grid-connected converter under grid fault conditions. Positive-and negative-sequence reactive power are controlled separately in order to effectively support unbalanced grid voltage.
S. Gu +4 more
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A new bidirectional isolated converter for grid connection
2010 IEEE Energy Conversion Congress and Exposition, 2010This paper proposes a bidirectional isolated AC-AC converter for grid connection of various loads or energy sources. The converters can be utilized for interfacing renewable energy sources to the grid as well as traditional motor drives. It does not employ any line-frequency transformer, large electrolytic capacitors, and inductors to diminish the ...
Myoungho Kim, Anno Yoo, Seung-Ki Sul
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Impedance source converter for grid-connected Photovoltaic applications
2016 IEEE Region 10 Conference (TENCON), 2016A impedance source converter which is suitable for grid-connected Photovoltaic (PV) applications is presented in this paper. In this work, the modelling and simulation of a single-phase impedance source inverter suitable for interfacing the PV System with the grid and its control methods are presented.
Tan Hui Ying Felicia +2 more
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Sensorless Control of a Grid-Connected PV Converter
2006 12th International Power Electronics and Motion Control Conference, 2006The base of our new developed grid-connected PV converter is a low cost general purpose frequency converter. In spite of the lack of voltage sensors a very reliable anti-island protection is reached. In the first section a control structures of the grid-connected converter with UVOC (Utility Voltage Oriented Control) is given while in the second ...
Varjasi, István +2 more
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Dual Mode Control Of Grid Connected Solar Converters
2019 2nd International Conference on Computing, Mathematics and Engineering Technologies (iCoMET), 2019In this paper, dual mode control is proposed for DC voltage regulation, generated through Photovoltaic (PV) energy and an interior point convex optimization based on quadratic programming algorithm is used to predict the optimal switching functions for all sectors of three phase inverter.
Wahab Shah +2 more
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A New Universal Isolated Converter for Grid Connection
IEEE Transactions on Industry Applications, 2012This paper proposes an isolated universal-link ac-ac power converter suitable for grid connection. The proposed power converter can have multiple ports to connect various loads or electric energy sources, and the configuration can be arranged according to the situation.
Myoungho Kim, Anno Yoo, Seung-Ki Sul
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Power capability of Multi-Function Grid connected Converters
IREC2015 The Sixth International Renewable Energy Congress, 2015Multi-Function Grid connected Converters (MFGcCs) can be considered as a potential and adequate solution able to address power quality and grid support issues — on one hand — and to interface the renewable energy resources (RERs) with the utility grid-on the other hand.
M. Merai +2 more
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