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

Section: Short Review Of the Contributions To This Special Issuementioning

confidence: 99%

Volume II: Energy Management Systems for Optimal Operation of Electrical Micro/Nanogrids

Di Piazza

2024

“…This model can minimize voltage deviation, reactive power deviation, and the total reactive power generated while considering operational constraints. In [17], a control strategy for PV inverters is presented to mitigate voltage disturbances due to high PV energy penetration in low-voltage distribution grids. This approach addresses the PV active power transmission, load balance, and reactive power compensation, ultimately reducing losses.…”

Section: Previous Workmentioning

confidence: 99%

Distributed Reactive Power Injection-Based Approach for Minimization of Losses in Electrical Networks Considering Heuristic Algorithms and Voltage Deviation

Filho,

Corrêa,

Vieira

2023

This paper deals with the reduction in electrical losses and the minimization of voltage deviation in electrical power grids. To this end, a novel heuristic-based approach is proposed for controlling reactive power injections along an electrical grid with distributed generation using distributed photovoltaic (PV) generation. The proposed approach consists of applying a heuristic, namely a genetic or firefly algorithm, to solve the loss and voltage deviation optimization problem by controlling PV reactive power injections. The proposed method was tested on a radial 100-bus network with an intense penetration of PV generation. The obtained results indicate that the proposed method consistently yields superior grid performance when compared to algorithms previously proposed in the literature. In fact, it led to a reduction in the active power supplied by the reference bus to the grid, thereby alleviating the burden imposed on the most upstream parts of the distribution network. As a consequence, the proposed method contributes to a power-efficient network, enhancing its loss performance and voltage stability.

“…The other paper concerns the mitigation of voltage disturbances that deteriorate power quality and disrupt the operation of LV distribution grids due to the high penetration of PV energy sources in prosumer installations. The proposed solution is a novel control strategy for three-phase four-wire PV inverters, which ensures the transmission of active PV power and simultaneous compensation of load unbalance and reactive power, making the prosumer installation balanced and purely active [12].…”

Section: Introductionmentioning

confidence: 99%

Impact of Prosumers’ Operation on Selected Parameters of Low-Voltage Distribution Network Operation

Benesz,

Moskwa

2024

This article presents the issue of the impact of the operation of prosumer installations on the operation of the distribution network. The emergence of a very large number of distributed generation units in electric distribution networks (in particular, photovoltaic installations in low-voltage grids) can be associated with both positive and negative consequences. Positive consequences can include, among others, the environmental aspect of electricity generation. Negative consequences, on the other hand, can include technical problems of power grid operation, manifested, for example, in changes that can be observed in steady states, in the values of such parameters of grid operation as voltage level, values of branch currents, or power and energy losses. The issue discussed will be illustrated by a calculation example considering, among other things, the size and location of the prosumer installation.