Harmonic Distorted Load Control in a Microgrid

Khaledian, Amir; Vahidi, B.; Abedi, Mehrdad

doi:10.1016/s1665-6423(14)70095-1

Cited by 5 publications

(2 citation statements)

References 25 publications

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“…Most of the control algorithms applied in practice for load compensation in the 3-phase systems use the theory of instantaneous powers and abc/αβ or abc/120 transformation [27,28]. In 3-wire systems, only positive and negative components of the unbalanced currents can be considered.…”

Section: Inverter Topologymentioning

confidence: 99%

Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation

2023

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This paper concerns the mitigation of voltage disturbances deteriorating power quality and disrupting the operation of LV distribution grids due to the high penetration of PV energy sources in prosumer installations. A novel control strategy for 3-phase 4-wire PV inverters is proposed, which ensures the transmission of PV active power and simultaneous compensation of load unbalance and reactive power, making the prosumer installation balanced and purely active. It results in the balance of phase voltages and the mitigation of their variability. Unlike other methods used for voltage regulation in LV grids, the proposed solution contributes to the reduction in losses, is simple, and does not require additional costs. In the paper, a control algorithm for the PV inverter is described. Its effectiveness was tested by simulation using a model of the real LV distribution grid developed in the PSCAD/EMTDC program. The results of the simulations are presented and evaluated.

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Section: Inverter Topologymentioning

confidence: 99%

Integration of PV Sources in Prosumer Installations Eliminating Their Negative Impact on the Supplying Grid and Optimizing the Microgrid Operation

2023

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“…Source: (IEEE, 2014) In (Khaledian, Vahidi, & Abedi, 2014) an experimental microgrid is simulated to study the impacts of different harmonics distortions, and a control strategy is tested in order to reduce the THD in the source and other load sides.…”

Section: Harmonic Distortionmentioning

confidence: 99%

The Why of Adaptive Protections in Modern Electrical Networks

Montenegro¹,

Gómez-Luna²,

Sáenz³

et al. 2019

Ing. Inv.

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Electrical networks are evolving and taking on more challenges as the inclusion of renewable energy and distributed generation units increase, specially at distribution levels. Big trends of generating electricity with alternative and renewable resources has promoted the formation of distribution networks subsystems or micro grids, capable of supplying their own electric demand and to export energy to the interconnected system, if necessary. However, the effects of these generation units into the network and into the microgrid as well are many, as harmonic distortion, voltage flickers and especially in electrical protections.This paper provides an overview about implementation of renewable energy and distributed generation worldwide, as well as an introduction to microgrids concept and its main impacts and challenges into the electric systems. Finally, the main impacts of microgrid on protection equipments are presented at a distribution level, being adaptive protections one of the solutions to the dynamic changes of the electric system.

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