Smart Control of on Load Tap Changer deployed in Low Voltage Distribution Network

Bangash, K. N.; Farrag, Mohamed Emad; Osman, Ahmed

doi:10.1109/epecs.2015.7368530

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…A typical configuration of UPFC applied in power systems [52] is shown in Figure 10d. UPFC can be regarded as the series and paralleled FACTS device, which is realized by a back-to-back converter.…”

Section: Comparison With Upfcmentioning

confidence: 99%

The State of the Art of Topologies for Electric Springs

et al. 2018

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This paper aims to review the state of the art in topologies for electric springs (ESs) and their suitability for different applications in distributed power systems with sufficient power generation from renewable energy sources, especially at domestic households. Owing to the fact that there exist many kind of ESs, a comprehensive overview of single-phase ESs sequenced as ES-1, ES-2, ES-3 and other forms, three-phase ESs (TPESs) sequenced as TPES-1, TPES-2 etc., and direct current ES (DCES) sequenced as DCES-1, DCES-2, PVES is conducted. The originalities, advantages and disadvantages of each ES topology version are analyzed to propose its most suitable application. Besides, comparisons between ESs and traditional flexible alternating current transmission (FACTS) devices are addressed. Finally, conclusions and possible future research trends are pointed out.

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Section: Comparison With Upfcmentioning

confidence: 99%

The State of the Art of Topologies for Electric Springs

et al. 2018

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“…Traditionally, various devices have been used to regulate the voltage at the distribution network, such as on-load tap changer transformers (OLTC) [7][8][9][10][11], volt/var control (VVC) with fixed capacitor banks (CBs) [12][13][14], or switched capacitors and inductors as in static var compensators (SVC) [15,16]. Hybrid volt/var control combining OLTCs, CBs, and SVCs is typically utilized to provide var support [17].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Capacitor-Less D-STATCOM for Voltage Profile Improvement in Distribution Network With High PV Penetration

Rohouma

Metry

Balog

et al. 2022

IEEE Open J. Power Electron.

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Distributed Energy Resources (DERs) have disrupted the traditional electrical system. Grid-connected photovoltaic (PV) systems deliver electric energy closer to the consumer, shifting the paradigm from centralized to distributed generation. The impact of the stochastic PV output power gives rise to potentially rapid voltage fluctuations. Reactive power compensation is needed to regulate the voltage profile to meet the relevant standards. Traditional approaches like switched capacitors cannot provide reactive power that is continuously adjustable at short time scales. This paper examines an alternative distribution static synchronous compensator (D-STATCOM) based on a matrix converter (MC) for the low voltage distribution networks with high PV penetration. This technology can extend service life by using inductors for energy storage. The converter being studied provides ancillary services, including reactive power support; the impact on reliability, operational constraints, and electrical behavior is demonstrated. The contribution of this paper is a detailed analysis and impact study of the capacitor-less D-STATCOM in high PV penetration distribution networks. The significance of this paper is that it studies the behavior of the power electronics converter and its interaction with the power systems without assuming or neglecting details of either. Compensation effects and reliability comparisons between the proposed capacitorless D-STATCOM and the incumbent D-STATCOM technology are also studied in

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Island mode operation in intelligent microgrid—Extensive analysis of a case study

Hartmann

Táczi

Talamon

et al. 2021

Int Trans Electr Energ Syst

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Summary Arguably, the most important challenge nowadays in the energy industry is the utilization of intermittent renewable energy sources. On the one hand, renewable sources are the future in terms of sustainability. While on the other hand, several questions remain unanswered in connection with their day‐to‐day operation and system integration. Creating microgrids with local control of the distributed energy resources seems to offer solutions but there is a lack of practical experience. Especially in Europe, where a microgrid with islanding capability is connected to a widespread, synchronously operating grid, it is a complicated task, owing to the control methods. In this paper, the technical possibilities are presented, which are necessary to allow island mode operation of a microgrid. The case study discusses a “living lab” in which several energy generation technologies have been deployed thus it is a good representation of future renewable‐based microgrids. To support the island operation, numerical calculations and simulations are used to determine power and energy needs of necessary flexibility measures. Basis of the calculations is the year‐long data measured on‐site. Sizing and operation modes for energy storage and demand‐side resources and an architectural scheme are presented. Net present value for all technological options are compared to aid the selection of the best option. A sensitivity analysis is also performed to assess how potential change in various parameters of the economical calculation affect the results. It is shown that provision of uninterruptible power supply and thus island operation of the site can be provided within reasonable techno‐economical limits.

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Smart Control of on Load Tap Changer deployed in Low Voltage Distribution Network

Cited by 5 publications

References 3 publications

The State of the Art of Topologies for Electric Springs

The State of the Art of Topologies for Electric Springs

Analysis of the Capacitor-Less D-STATCOM for Voltage Profile Improvement in Distribution Network With High PV Penetration

Island mode operation in intelligent microgrid—Extensive analysis of a case study

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