DC ripple current reduction on a single phase PWM voltage source converter

2002 ◽  
Author(s):  
Y. Jin ◽  
T. Shimizu ◽  
G. Kimura
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Current Reduction

scholarly journals Feedforward Harmonic Mitigation Strategy for Single-Phase Voltage Source Converter

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Qing Zhong ◽  
Junjie Feng ◽  
Gang Wang ◽  
Haifeng Li
Keyword(s):  
Single Phase ◽  
Control Strategies ◽  
Mitigation Strategy ◽  
Voltage Source ◽  
Effective Control ◽  
Voltage Source Converter ◽  
Phase Voltage ◽  
Analysis Model ◽  
Harmonic Pollution ◽  
Harmonic Mitigation

With the development of distributed generations (DGs), single-phase voltage source converter (SPVSC) has been widely used, but it brings about the problem of harmonic pollution to power grid. Hence, it is significant to explore the mechanism of harmonic injection from SPVSC and propose effective control strategies to mitigate the harmonic pollution. In this paper, a harmonic analysis model of SPVSC based on dynamic phasor (DP) has been established. With the model, the harmonics interaction between the ac side and the dc side can be analyzed with the consideration of the control strategies, which reveals the generation mechanism of the harmonics in SPVSC. Based on the mechanism, a feedforward harmonic mitigation strategy has been presented. The principle of the strategy is to add low-order harmonic signal to the PWM modulation signals to reduce the harmonic current on the ac side. The harmonic mitigation strategy not only has clear physical meaning and fast calculation, but also is robust for the uncertainty of parameters. Finally, the simulation and experiment results demonstrate the correctness of the model and the effectiveness of the harmonic mitigation strategy.

scholarly journals MMC-Based PV Single-Phase System with Distributed MPPT

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3964 ◽  
Author(s):  
Simone Barcellona ◽  
Marzio Barresi ◽  
Luigi Piegari
Keyword(s):  
Control Strategy ◽  
Single Phase ◽  
Low Voltage ◽  
Renewable Energy Sources ◽  
Daily Basis ◽  
Maximum Power ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Phase System ◽  
Partial Shading

The presence and evolution of static power converters in electric grids are growing on a daily basis. Starting from the most used voltage source converter (VSC), passing through the use of multilevel converters, the most recent configuration is the so-called modular multilevel converter (MMC). Because of its intrinsic advantages, it is used not only in high-voltage systems but also in low- and medium-voltage ones to interface renewable energy sources such as photovoltaic (PV) panels. Several configurations and maximum power point tracker (MPPT) algorithms have been proposed and analyzed for MMC-PV-based systems. However, when using distributed MPPTs, partial shading conditions cause a problem. The PV panel can be directly connected to the MMC using its dc link or submodule. Based on this configuration, this paper proposes a novel control strategy that tracks both the ac grid current and ac circulating current for a single-phase low-voltage system to obtain the maximum power under any irradiance condition. The effectiveness of the proposed control strategy is demonstrated through time-domain simulation results.

scholarly journals Passivity-Based Control by Series/Parallel Damping of Single-Phase PWM Voltage Source Converter

2014 ◽  
Vol 22 (4) ◽  
pp. 1310-1322 ◽  
Author(s):  
Dunstano del Puerto-Flores ◽  
Jacquelien M. A. Scherpen ◽  
Marco Liserre ◽  
Martijn M. J. de Vries ◽  
Marco J. Kransse ◽  
...  
Keyword(s):  
Single Phase ◽  
Voltage Source ◽  
Voltage Source Converter ◽  
Passivity Based Control
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