Dynamic voltage restorer (DVR) in a complex voltage disturbance compensation

Mansor, Muhammad Alif; Othman, Muhammad Murtadha; Musirin, Ismail; Noor, Siti Zaliha Mohammad

doi:10.11591/ijpeds.v10.i4.pp2222-2230

Cited by 11 publications

(4 citation statements)

References 15 publications

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“…The DVR is used to mitigate voltage sag and swell to improve the PQ in MG that contains PV and batteries, T showing good performance [23]. Another study introduced the DVR to address voltage fluctuation and disturbances [24]. The outcomes of this study showed that the DVR improved the performance of critical or sensitive loads connected to a MG that is sensitive to voltage fluctuation.…”

Section: Introductionmentioning

confidence: 95%

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: 95%

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

et al. 2020

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“…The authors have distributed various gadgets for power quality problem-solving in a distributed framework in the literature. The Shunt Active Power Filter, Series Active Power Filter, and Unified Power Quality Conditioner (UPQC) are among the most well-known and viable devices for power quality problems [4]. Shunt activated power is a strong answer to current quality problems due to the filter's unequal load, the nonlinear load, and the current being generated.…”

Section: Introductionmentioning

confidence: 99%

Multi-Level Inverter Linear Predictive Phase Composition Strategy for UPQC

Prabhu¹,

Sundararaju²

2023

Intelligent Automation &Amp; Soft Computing

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The power system is facing numerous issues when the distributed generation is added to the existing system. The existing power system has not been planned with flawless power quality control. These restrictions in the power transmission generation system are compensated by the use of devices such as the Static Synchronous Compensator (STATCOM), the Unified Power Quality Conditioner (UPQC) series/shunt compensators, etc. In this work, UPQC's plan with the joint activity of photovoltaic (PV) exhibits is proposed. The proposed system is made out of series and shunt regulators and PV. A boost converter connects the DC link to the PV source, allowing it to compensate for voltage sags, swells, voltage interferences, harmonics, and reactive power issues. In this paper, the features of a seven-level Cascaded H-Bridge Multi-Level idea are applied to shunt and series active filter changeovers to reduce Total Harmonic Distortion and compensate for voltage issues. Despite its power quality capacity for common coupling, the proposed system can inject the grid's dynamic power. During voltage interference, it can also provide a piece of delicate burden power. The simulation is carried out with the help of MATLAB/SIMULINK programming, and the results are compared to those of other conventional methods.

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“…1007 [11]. The numerical methods include Newton's Raphson method, Gauss Seidel Method, Fast decoupled method etc [12], [13]. In this research work, a well-conditioned power flow problem is framed and solved using Newton-Raphson method.…”

Section: Introductionmentioning

confidence: 99%

Load flow analysis of 10 bus loop distribution network excited by a generator simulated using open modelica

Abirami

Ravi²

2021

IJPEDS

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<span lang="EN-CA">In recent days, due to advancement in technology, the end users are facing severe power quality issues. Load flow analysis is one of the fundamental methodologies in solving power network problems. The key importance of Load flow analysis is to improve the performance of distribution network. The main intention of this reserach is to carry out the load flow and voltage stability analysis of 10 bus loop distribution network energized by a generator. Load flow analysis is carried out by using Newton Raphson method. The per unit voltage and angle of the proposed network is determined in all 10 buses by load flow analysis. The voltage stability analysis is implemented by introducing a fault in the network. Here, a power fault is injected at bus 4 between the time interval of 2 to 3 sec to analyse the stability of the system. The voltage stability of the system is analysed for the network with and without automatic voltage regulator (AVR). The AVR unit is tuned by using power system stabilizer (PSS). The results are examined by simulating the network using open modelica connection editor. From the simulation results the per unit voltages and angles at all 10 buses are determined for the network with and without AVR. By comparing both the results it is proved that the network with AVR has better voltage stability than the other. Thus, the voltage stability of the system is improved by connecting the generator with AVR and PSS.</span>

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Dynamic voltage restorer (DVR) in a complex voltage disturbance compensation

Cited by 11 publications

References 15 publications

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

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

Multi-Level Inverter Linear Predictive Phase Composition Strategy for UPQC

Load flow analysis of 10 bus loop distribution network excited by a generator simulated using open modelica

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