A Fast Power Calculation Algorithm for Three-Phase Droop-Controlled-Inverters Using Combined SOGI Filters and Considering Nonlinear Loads

Li, Mingshen; Matas, J.; Mariachet, J. El; Branco, Carlos Gustavo Castelo; Guerrero, Josep M.

doi:10.3390/en15197360

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…These advancements demonstrate ongoing efforts to overcome the limitations of droop control and improve power-sharing strategies. Recent studies have explored innovative approaches, including fast power calculation algorithms considering nonlinear loads [64][65][66].…”

Section: Primary Controlmentioning

confidence: 99%

A Comprehensive Review of Architecture, Communication, and Cybersecurity in Networked Microgrid Systems

Aghmadi,

Hussein,

Polara

et al. 2023

Inventions

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Networked microgrids (NMGs) are developing as a viable approach for integrating an expanding number of distributed energy resources (DERs) while improving energy system performance. NMGs, as compared to typical power systems, are constructed of many linked microgrids that can function independently or as part of a more extensive network. This allows NMGs to be more flexible, dependable, and efficient. The present study comprehensively investigates architecture, communication, and cybersecurity issues in NMGs. This comprehensive study examines various aspects related to networked microgrids (NMGs). It explores the architecture of NMGs, including control techniques, protection, standards, and the challenges associated with their adoption. Additionally, it investigates communication in NMGs, focusing on the technologies, protocols, and the impact of communication on the functioning of these systems. Furthermore, this study addresses cybersecurity challenges specific to NMGs, such as diverse cyberattack types, detection and mitigation strategies, and the importance of awareness training. The findings of this study offer valuable insights for NMG researchers and practitioners, emphasizing critical aspects that must be considered to ensure the safe and efficient operation of these systems.

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Section: Primary Controlmentioning

confidence: 99%

A Comprehensive Review of Architecture, Communication, and Cybersecurity in Networked Microgrid Systems

Aghmadi,

Hussein,

Polara

et al. 2023

Inventions

View full text Add to dashboard Cite

show abstract

“…Roughly speaking, in the case of the presence of the DC component in the inverter voltage, the performance of this method might be questionable due to the sensibility of the SOGI to such a disturbance [24]. In [25], the average powers are achieved through SOGI that acts as an LPF, where its inputs are the real and reactive power obtained by multiplying the fundamental αβ current components provided by another SOGI that acts as a band‐pass filter (BPF), with the αβ voltage components. Although this method, which has been applied to a three‐phase system, has provided fast power calculation, the presence of the DC component in the inverter voltage may lead to inaccurate power calculation with undesirable oscillations.…”

Section: Introductionmentioning

confidence: 99%

Improved power computation method for droop‐controlled single‐phase VSIs in standalone microgrid considering non‐linear loads

Kherbachi

Chouder

Bendib

et al. 2023

IET Generation Trans & Dist

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Computation of active and reactive powers is a crucial step in droop-controlled singlephase voltage source inverters (VSIs) in standalone microgrid since the performance and stability of the power-sharing strategy are strongly influenced by its speed and accuracy, especially in the case of non-linear loads. Here, an improved performance of power-sharing among single-phase droop-controlled VSIs in an islanded microgrid, considering DC component and nonlinear loads is presented. To achieve this goal, an enhanced power-sharing control scheme including a Multiple Enhanced Second-Order Generalized Integrator Frequency-Locked Loop (MESOGI-FLL) for power calculation is proposed. As a result, the proposed power computation technique provides high rejection capability of DC component and current harmonics, hence, perfect estimation of the fundamental component of the inverter output current and its 90• phase-shifted component. This strategy makes the power calculation method-based control scheme immune to disturbance effects of the DC component and the high current harmonics. Detailed analysis, mathematical modelling of MESOGI, as well as a comparison with recent methods, are also provided. Simulation and experimental tests were carried out and the obtained results have shown the effectiveness and robustness of the proposed power-sharing controller even under nonlinear load operating conditions.

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Synchronous Elastic Systems and Voltage Droop Optimization Using Stochastic Petri Net Model

Akhigbe-mudu

2023

Am. J. Innov. Sci. Eng.

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Electric power systems play a significant role in modern society, serving billions of people. Therefore, there has been growing concern about the reliability and efficiency of the existing power systems; utilities are looking for technology to alleviate their concerns. One of the major concerns associated with voltage demand, is about system strength. System strength refers to the ability to withstand fault events, to maintain and control voltage waveform following these events. This paper aims to fill this gap by introducing synchronous elastic systems, using the SPN model, a connection strategy to improve frequency and voltage stability. In order to reach a more precise control effect, two working cases are considered for demonstrating the proposed control algorithm – droop control using SPN model. Droop control is realized by simulating the droop characteristics of generators and controlling the output voltage and frequency of the voltage source inverter (VSI) according to output power variation. Petri nets are classical tools for modelling and analyzing discrete event systems which are too complex to be described by automata or queuing models. The structural mechanism of the controller is based on the SPN model, which improves the problem of static error in the control of AC variables. The frequency domain characteristics are compared in detail and relevant parameters are designed. Controlling harmonic voltage levels within specified limits at the weakest point on the network ensures that other network locations will have better performance, hence, this study is highly appreciated.

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A Fast Power Calculation Algorithm for Three-Phase Droop-Controlled-Inverters Using Combined SOGI Filters and Considering Nonlinear Loads

Cited by 3 publications

References 25 publications

A Comprehensive Review of Architecture, Communication, and Cybersecurity in Networked Microgrid Systems

A Comprehensive Review of Architecture, Communication, and Cybersecurity in Networked Microgrid Systems

Improved power computation method for droop‐controlled single‐phase VSIs in standalone microgrid considering non‐linear loads

Synchronous Elastic Systems and Voltage Droop Optimization Using Stochastic Petri Net Model

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