A new multifunctional converter based on a series compensator applied to AC microgrids

Antunes, Hélio M. A.; Silva, Sidelmo M.; Brandão, Danilo I.; Machado, Alysson Augusto Pereira; Filho, Braz J. Cardoso

doi:10.1016/j.ijepes.2018.04.013

Cited by 21 publications

(8 citation statements)

References 32 publications

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“…Figure 10B shows that V t remains constant as v Sa remains unchanged. The W pa reduces sharply with the i La as per Equations ( 5)- (9). The V dc of the system remains stable after minor variations.…”

Section: Resultsmentioning

confidence: 86%

“…Adaptive neural network (ADALINE) control offers a better training procedure but suffers from the linear separability constraint of the perceptron. However, the hardware implementation of ADALINE requires a microcontroller with parallel processing 5–26 …”

Section: Introductionmentioning

confidence: 99%

“…5,6 In Maurya et al 7 and Huang et al, 8 a single-phase DSTATCOM topology is presented for the residential system, whereas in Naqvi and Singh 4 and Singh et al, 5 the three-phase three-wire and three-phase four-wire topologies are presented. In Antunes et al, 9 an interesting topology has been presented where the inverter connection changes from shunt to series connected device and vice versa.…”

mentioning

confidence: 99%

“…On the other have, PBT performs relatively inferior to the SRF due to the absence of the phase-locked loop (PLL), 14,15 which further makes phase detection and matching difficult during dynamic conditions. 16 In Antunes et al, 9 a multifunctional converter as a series compensator is controlled by a PLL-voltage controller, and a shunt compensator is controlled by a conservative power theory (CPT)-based current controller. Grid synchronization achieved with PLL also introduces the control design limitations, which results in slow response and large sampling time.…”

mentioning

confidence: 99%

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Advanced adaptive algorithm controlled single‐phase DSTATCOM operation during weak grid conditions

Chankaya,

Aijaz,

Hussain

et al. 2023

Circuit Theory & Apps

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SummaryThis paper presents the performance of a single‐phase utility‐tied distribution static compensator (DSTATCOM) with nonlinear load operating under weak grid conditions. The DSTATCOM is controlled by a complex kernel risk‐sensitive p‐power (CKRSP) algorithm. Ever‐increasing nonlinearity of the load, rapidly increasing renewable energy system installed capacity, and rising heating loads, especially during the winter season, lead to various power quality issues that worsen during weak grid conditions. An advanced adaptive control scheme, that is, CKRSP, enforces the system to perform various multifaceted operations, including harmonics suppression, handling rapid load variations, voltage sag and swell, and active and reactive power control at the point of common coupling (PCC) during weak grid conditions. The proposed CKRSP algorithm outperforms conventional control algorithms regarding steady‐state error, convergence speed, and accuracy. During weak grid conditions, the proposed system ensures stable DC bus voltage with a reduced second harmonic component. This further assists the CKRSP control in better extracting the fundamental load current component using a smoother loss component of current . The proposed system can handle various power quality issues during weak grid conditions while ensuring the overall system's stability. The laboratory prototype results show that the presented system performs satisfactorily under weak grid conditions per IEEE 519‐2014 standards.

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Section: Resultsmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Advanced adaptive algorithm controlled single‐phase DSTATCOM operation during weak grid conditions

Chankaya,

Aijaz,

Hussain

et al. 2023

Circuit Theory & Apps

View full text Add to dashboard Cite

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“…In case of large nonlinear loads, harmonic content should be decreased using passive or active power filters which are an expensive solution, so ILCs can be effectively used to suppress harmonic currents imposed by nonlinear loads. The ILCs can contribute to voltage stability improvement [3,4], voltage unbalance compensation [5,6], flicker mitigation [7], harmonic compensation [8][9][10] and reactive power compensation [11] in MGs and distribution networks. As the number of nonlinear loads is growing rapidly in distribution systems, ILC harmonics compensation plays an interesting and important role.…”

Section: Introductionmentioning

confidence: 99%

Hybrid energy storage system control analogous to power quality enhancement operation of interlinking converters

Hajiaghasi

Salemnia

Hamzeh³

2021

IJECE

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Increasing nonlinear loads and power electronic converters lead to various power quality issues in microgrids (MGs). The interlinking converters (ILCs) can participate in these systems to harmonic control and power quality enhancement. However, ILC participation deteriorates the dc link voltage, system stability, and storage lifetime due to oscillatory current phenomena. To address these problems, a new control strategy for a hybrid energy storage system (HESS) is proposed to eliminate the adverse effects of the harmonic control operation of ILC. Specifically, battery and super-capacitor (SC) are used as HESSs that provide low and high power frequency load, respectively. The proposed strategy tries to compensate the current oscillation imposed by ILC with fuzzy control of HESS. In this method, a proportional-resonant (PR) controller integrated with harmonic compensator (HC) is employed to control the ILC for power quality enhancement and oscillatory current elimination. The main advantages of the proposed strategy are to reduce DGs power ﬂuctuations, precise DC bus voltage regulation for generation and load disturbances, improved grid power quality under nonlinear load and transition conditions. The performance of the proposed method for isolated and grid-connected modes is verified using simulation studies in the MATLAB software environment.

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Real-Time Simulators Applied to Brazilian Power Systems: A Review

Oliveira

García

et al. 2020

J Control Autom Electr Syst

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This paper presents a review on real-time simulators and their use applied to power systems in Brazil. The review comprises most of the current research made in institutions/enterprises that own real-time simulators as well as the application trends of related technologies, considering both conferences and journals published papers. It is observed that several Brazilian universities have simulators in real-time and that the publications in journals have been increased, which shows that the learning curve of the Brazilian research institutions has led to an improvement in the quality of the publications. It is also important to emphasize that the analysis of real systems in most publications indicates a trend and a demand for studies with simulators in real time, to solve problems of companies of the electric sector. Related with works that use real systems in their simulations, several publications were generated in the context of R&D projects. This shows that real-time simulators are very relevant tools for studies on power systems of companies in the electricity sector, aligning scientific research and the provision of highly specialized services.

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A new multifunctional converter based on a series compensator applied to AC microgrids

Cited by 21 publications

References 32 publications

Advanced adaptive algorithm controlled single‐phase DSTATCOM operation during weak grid conditions

Advanced adaptive algorithm controlled single‐phase DSTATCOM operation during weak grid conditions

Hybrid energy storage system control analogous to power quality enhancement operation of interlinking converters

Real-Time Simulators Applied to Brazilian Power Systems: A Review

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