Three-phase current-source shunt active power filter with solar photovoltaic grid interface

Exposto, Bruno; Monteiro, Vítor; Pinto, J. G.; Pedrosa, Delfim; Meléndez, Andrés A. Nogueiras; Afonso, João L.

doi:10.1109/icit.2015.7125262

Cited by 13 publications

(6 citation statements)

References 15 publications

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“…Another problem in power grids is the existence of current harmonics. Thus, in order to mitigate this problem, work has also been carried out, where the possibility of the smart inverter to have a parallel mode of operation as an active power filter is verified [26][27][28][29]. In this way, it will be possible to attenuate those harmonics, allowing the improvement of the quality of the voltage waveform [30,31].…”

Section: Prior Studies' Historical Context To the Researchmentioning

confidence: 99%

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

et al. 2019

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The proliferation of residential photovoltaic (PV) prosumers leads to detrimental impacts on the low-voltage (LV) distribution network operation such as reverse power flow, voltage fluctuations and voltage imbalances. This is due to the fact that the strategies for the PV inverters are usually designed to obtain the maximum energy from the panels. The most recent approach to these issues involves new inverter-based solutions. This paper proposes a novel comprehensive control strategy for the power electronic converters associated with PV installations to improve the operational performance of a four-wire LV distribution network. The objectives are to try to balance the currents demanded by consumers and to compensate the reactive power demanded by them at the expense of the remaining converters’ capacity. The strategy is implemented in each consumer installation, constituting a decentralized or distributed control and allowing its practical implementation based on local measurements. The algorithms were tested, in a yearly simulation horizon, on a typical Portuguese LV network to verify the impact of the high integration of the renewable energy sources in the network and the effectiveness and applicability of the proposed approach.

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Section: Prior Studies' Historical Context To the Researchmentioning

confidence: 99%

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

et al. 2019

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“…When the microgrid is not connected to the main grid through the PCC (isolated mode), electronic power converters connected to the microgrid operate as voltage source inverter to control the voltage and frequency of the microgrid [60]. When the microgrid is connected to the main grid, the inverters share active or reactive power operating as current source inverters [61,62]. The role of these power electronics converters is to regulate the power flow between electric power generators (renewable energy sources and electric storage systems) and the grid.…”

Section: Control Of the Microgridmentioning

confidence: 99%

Experimental framework for laboratory scale microgrids

Restrepo

2016

Rev. Fac. Ing. Univ. Antioquia

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“…Although this problem is also important, much less attention has been given to it as compared to the other mentioned problems. Regardless, several studies have addressed this problem [15][16][17][18]. The use of PV generators to address the currents imbalance problem was recently reported in the literature [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Compensation of Unbalanced Low-Voltage Grids Using a Photovoltaic Generation System with a Dual Four-Leg, Two-Level Inverter

et al. 2022

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In this paper, a grid-connected photovoltaic (PV) generation system is proposed with the purpose of providing support to low-voltage grids, namely through the elimination or attenuation of the grid imbalances. This compensation must consider the load types, which can be either linear or non-linear, and whether the reactive power and current harmonics generated by the non-linear loads need to be compensated in addition to the unbalanced active power. This must be well considered, since the compensation of all aspects requires oversized PV inverters. Thus, the different unbalanced compensation schemes are addressed. Several schemes for the generation of the inverter current references taking into consideration the compensation and load type are presented. For this PV generation system, a dual four-leg, two-level inverter is proposed. It provides full unbalanced compensation owing to the fourth leg of the inverter and also extends the AC voltage, which is important when this compensation is required. To control this inverter, a control scheme for the inverter that considers several compensation factors is proposed. A vector voltage modulator associated with the controller is another aspect that is addressed in the paper. This modulator considers the balance between the DC voltages of the inverters. Several compensation schemes are verified through computational tests. The results validate the effectiveness of the proposed PV generation system.

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Three-phase current-source shunt active power filter with solar photovoltaic grid interface

Cited by 13 publications

References 15 publications

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

Photovoltaic Power Converter Management in Unbalanced Low Voltage Networks with Ancillary Services Support

Experimental framework for laboratory scale microgrids

Compensation of Unbalanced Low-Voltage Grids Using a Photovoltaic Generation System with a Dual Four-Leg, Two-Level Inverter

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