Distributed generation power inverters as shunt active power filters for losses minimization in the distribution network

Belenguer, E.; Beltrán, Héctor; Aparicio, N.

doi:10.1109/epe.2007.4417552

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…Replacing (7) in (6) Where I SC_REF is the design short-circuit current of the PV panel, RP is the shunt parallel resistance and the function block (f(u)) with name "I reverse saturation reference" comprehends the following equation: (9) For the case under simulation, we have used a solar panel system which corresponds to the assembly of 22 parallel branches of 26 panels in series, having each panel: V OCpanel =36V, I SCpanel = 5A. This turns into a 936V dc open circuit voltage and 110A dc short-circuit current system.…”

Section: A Modeling Of the Panelmentioning

confidence: 99%

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Photovoltaic inverters used as active filters for improvement of IV distribution networks

Beltrán

Chen

Belenguer

et al. 2008

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies

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The aim of this paper is to evaluate the benefits that can be achieved by operating the connection inverters of the distributed energy resources as active power filters in LV distribution networks. The use of photovoltaic inverters to compensate zero sequence currents, arising from unbalances among phases, can improve the efficiency of the distributed system by means of reducing the total amount of losses. For that purpose, a typical load in parallel with a distribution network where a photovoltaic inverter is connected has been simulated. The reductions in the distribution power losses and compensation of zero sequence currents have been demonstrated.

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Section: A Modeling Of the Panelmentioning

confidence: 99%

“…which is a normal assumption for many LV distribution networks, the total losses in the line are expressed [9]:…”

Section: Power Losses Under Unbalanced Conditionsmentioning

confidence: 99%

Photovoltaic inverters used as active filters for improvement of IV distribution networks

Beltrán

Chen

Belenguer

et al. 2008

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies

Self Cite

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“…At present, the optimization objectives of grid-connected studies of DPG are to improve the reliability of the distribution system [21], minimize power loss [22,23], and improve voltage stability [24,25]. However, when the output impedance of the inverter cannot be ignored, the grid connection of DPG will change the topology and impedance distribution of the grid, especially when multiple inverters are connected in parallel [26].…”

Section: Introductionmentioning

confidence: 99%

Optimization Configuration of Grid-Connected Inverters to Suppress Harmonic Amplification in a Microgrid

et al. 2022

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This paper provides insight into the optimal configuration scheme of the grid-connected inverters based on harmonic amplification suppression. The connection of the inverters changes the natural resonance frequencies of the grid. Hence, a reasonable configuration of grid-connected inverters can optimize the impedance distribution and shift the natural resonance frequencies to frequency bands farther away from the harmonic sources. We proposed a scheme of site selection and determination of the number of inverters to suppress harmonic amplification. The resonance frequencies and modal frequency sensitivities (MFSs) were obtained by the resonance modal analysis (RMA). Moreover, the concepts of security region and insecurity region of resonance frequency were illustrated. The grid-connected sites can be obtained by calculating the participation factors (PFs) of the resonance frequencies in the insecurity region. Furthermore, the optimal number was determined by building the Norton equivalent circuit of the inverter and evaluating the output impedance at each frequency. Finally, simulations in Matlab/Simulink based on a modified IEEE-9 bus microgrid were utilized to verify the effectiveness of the proposed scheme.

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Topologies and control strategies of multi-functional grid-connected inverters for power quality enhancement: A comprehensive review

Zeng

Zhao

et al. 2013

Renewable and Sustainable Energy Reviews

310

132

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Distributed generation power inverters as shunt active power filters for losses minimization in the distribution network

Cited by 7 publications

References 6 publications

Photovoltaic inverters used as active filters for improvement of IV distribution networks

Photovoltaic inverters used as active filters for improvement of IV distribution networks

Optimization Configuration of Grid-Connected Inverters to Suppress Harmonic Amplification in a Microgrid

Topologies and control strategies of multi-functional grid-connected inverters for power quality enhancement: A comprehensive review

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