Voltage sag and swell mitigation using D-STATCOM in renewable energy based distributed generation systems

Hamoud, Faris; Doumbia, Mamadou Lamine; Chériti, A.

doi:10.1109/ever.2017.7935917

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…Moreover, DVR is used to reduce the harmonics produced by converters of MG units, as introduced in [25]. As a conventional power device, STATCOM is used to overcome the voltage sag and swell and thus enhance voltage stability in [26], reduce harmonics in [27], mitigate unbalance in [28], reduce power fluctuation in MG, and increase the voltage regulation and system power factor [29]. The SVC is developed to solve various critical PQ problems in MG systems [20,21,30].…”

Section: Introductionmentioning

confidence: 99%

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

et al. 2020

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A microgrid (MG) is a small-scale power system with a cluster of loads and distributed generators operating together through energy management software and devices that act as a single controllable entity with respect to the grid. MG has become a key research element in smart grid and distribution power systems. MG mainly contains different renewable energy sources (RESs) that use various technological advancements, such as power electronics-based technologies. However, it has an unstable output, thereby causing different types of power quality (PQ) events. As a result, standards and mitigation methods have been developed in recent years. To mitigate PQ issues due to MG integration, various methods and standards have been proposed over the last years. Although these individual methods are well documented, a comparative overview had not been introduced so far. Thus, this study aims to fill the gap by reviewing and comparing the prior-art PQ issues, solutions, and standards in MGs. We compare the main issues related to voltage sag, voltage swell, voltage and current harmonics, system unbalances, and fluctuations to ensure high-quality MG output power. The new technologies associated with MGs generate harmonics emission in the range of 2-150 kHz, thereby causing a new phenomenon, namely, supraharmonics (SH) emission, which is not sufficiently covered in the literature. Therefore, the characteristics, causes, consequences, and measurements of SH are highlighted and analyzed. The mitigation strategies, control, and devices of PQ issues are also discussed. Moreover, a comparison is conducted between the most popular devices used to mitigate the PQ issues in MG in terms of cost, rating, and different aspects of performance. This review study can strengthen the efforts toward the mitigation and standards development of PQ issues in MG applications, especially SH. Finally, some recommendations and suggestions to improve PQ of MG, including SH, are highlighted.

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Section: Introductionmentioning

confidence: 99%

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

et al. 2020

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“…In reality, research using D‐Statcom for voltage sag mitigation has mainly been introduced for the ‘distributed improvement’ approach where dynamic modeling of D‐Statcom is developed with main regard to D‐Statcom's controller design improvement for mitigating PQ issues at a specific load site. The introduction of research for ‘central improvement’ that normally deals with the problem of optimizing D‐Statcom's location and size is rather limited because of the following difficulties: (i) To find steady‐state or short‐time modeling of D‐Statcom for systematic mitigation of PQ issues; (ii) To optimize the use of D‐Statcom.…”

Section: Introductionmentioning

confidence: 99%

Optimally selecting the location of a multiple of D‐statcoms for the improvement of SARFI_X due to faults in the IEEE 33‐bus distribution system

Khanh

Hojo

2019

IEEJ Transactions Elec Engng

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This article introduces a new method for optimizing the placement of a multiple of D‐Statcoms for voltage sag mitigation in distribution systems. The D‐Statcom's placement is optimally selected not only for improving system voltage sag caused by a single fault event but also for all possible fault events in the system of interest. Therefore, D‐Statcom's placement is optimized in a problem of optimization where the objective function is to minimize the system voltage sag index—SARFIx. D‐Statcom's effectiveness for voltage sag mitigation is modeled based on the method of Thevenin's superimposition for the problem of short‐circuit calculation in distribution systems. This article considers the case of using a multiple of D‐Statcoms with a proposed voltage compensating principle that can be practical for large‐size distribution systems. This article uses the IEEE 33‐buses distribution feeder as the test system for voltage sag simulation and influential parameters to the outcomes of the problem of optimization are considered and discussed. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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“…In [19], the authors have proposed a D-STATCOM for the distribution system to mitigate voltage unbalanced effect created by U-V or V-V winding of transformer employing PI control. In [20], the authors have proposed a D-STATCOM for a renewable energy-based distribution system. The PI control is applied to alleviate the voltage sag/swell problem.…”

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confidence: 99%

Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System

et al. 2021

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At present, the disturbances like the voltage fluctuations, resulting from the grid's complexities and unbalanced load conditions, create severe power quality concerns like total harmonic distortion (THD) and voltage unbalance factor (VUF) of the grid voltage. Though the custom power devices such as distribution-static compensators (D-STATCOMs) improve these power quality concerns, however, the accompanying controller plays the substantial role. Therefore, this paper proposes a fractional-order sliding mode control (FOSMC) for a D-STATCOM to compensate the low power distribution system by injecting/absorbing a specific extent of the reactive power under disturbances. FOSMC is a non-linear robust control in which the sliding surface is designed by using the Riemann-Liouville (RL) function and the chattering phenomenon is minimized by using the exponential reaching law. The stability of FOSMC is evidenced by employing the Lyapunov stability criteria. Moreover, the performance of the proposed FOSMC is further accessed while doing its parametric variations. The complete system is demonstrated with a model of 400V, 180kVA radial distributor along with D-STATCOM under two test scenarios in MATLAB/Simulink environment. The results of the proposed controller are compared with the fixed frequency sliding mode control (FFSMC) and conventional proportional-integral (PI) control. The results validate the superiority of the proposed controller in terms of rapid tracking, fast convergence, and overall damping with very low THD and VUF.

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Voltage sag and swell mitigation using D-STATCOM in renewable energy based distributed generation systems

Cited by 8 publications

References 5 publications

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

Optimally selecting the location of a multiple of D‐statcoms for the improvement of SARFI_X due to faults in the IEEE 33‐bus distribution system

Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System

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Voltage sag and swell mitigation using D-STATCOM in renewable energy based distributed generation systems

Cited by 8 publications

References 5 publications

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

Power Quality in Microgrids Including Supraharmonics: Issues, Standards, and Mitigations

Optimally selecting the location of a multiple of D‐statcoms for the improvement of SARFIX due to faults in the IEEE 33‐bus distribution system

Analysis of Fractional Order Sliding Mode Control in a D-STATCOM Integrated Power Distribution System

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Optimally selecting the location of a multiple of D‐statcoms for the improvement of SARFI_X due to faults in the IEEE 33‐bus distribution system