Smart transformer for mitigation of voltage fluctuations in MV networks

Kadurek, P.; Cobben, J.F.G.; Kling, W.L.

doi:10.1109/eeeic.2011.5874838

Cited by 14 publications

(13 citation statements)

References 8 publications

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“…The integration of the smart metering with the proposed communication system may allow the voltage regulation in the most critical part of the secondary distribution system, depending on its characteristics, e.g., right after the secondary terminals of the transformer, in the middle or in the end of secondary grid [5]. This approach may help the power utilities to have online voltage regulation, and enhances the power quality of the distribution system at its critical points.…”

Section: Topology For Smart Transformer Applied In Smart Gridsmentioning

confidence: 99%

“…This device is usually named as a smart transformer [5], and can allows the online control of the secondary voltage of the transformer [6], from the online adjustment of the taps, including important functions for the distribution system, such as: power dispatch control for DG units, avoiding overvoltage in the secondary side [5]; creating a bidirectional communication path between the power utility and the transformer, allowing the online evaluation of the transformer loading [7]; monitoring of the load behavior at the point of common coupling (PCC), among others.…”

Section: Introductionmentioning

confidence: 99%

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Smart distribution transformer applied to Smart Grids

Quevedo

Giacomini

Beltrame

et al. 2013

2013 Brazilian Power Electronics Conference

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Growing demand, requirements for power quality enhancement and distribution generation are increasing the complexity of distribution systems. In this scenario, voltage regulation of distribution networks also becomes more complex, especially in long distribution lines. In this paper, a smart distribution transformer is proposed, which employs an electronic on load tap changer with a bidirectional communication system. This system enables automatic voltage regulation, telemetry and remote control for power utilities, allowing its application in Smart Grids. Keywords -Electronic on load tap changer (OLTC), smart grids (SG), smart transformer (ST).

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Section: Topology For Smart Transformer Applied In Smart Gridsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Smart distribution transformer applied to Smart Grids

Quevedo

Giacomini

Beltrame

et al. 2013

2013 Brazilian Power Electronics Conference

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“…In practice, the smart transformer decouples the MV and LV voltage levels and mitigates the voltage fluctuations originating from the MV network [13]. This capability can improve the voltage quality for supplied customers [14], but it can also be explored for other services like DR. Once IDS is installed to increase the voltage quality and flexibility of the future distribution networks, it can additionally provide online adjustments of the secondary voltage based on remote signals.…”

Section: A Smart Transformer For Demand Responsementioning

confidence: 99%

Assessment of demand response possibilities by means of voltage control with intelligent MV/LV distribution substation

Kadurek

Sarab

Cobben

et al. 2012

2012 IEEE Power and Energy Society General Meeting

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Demand response is considered as one of the possibilities, which should help to keep our power systems in balance of generation and production. To keep the system balanced will become more difficult, when large shares of electricity are generated from intermitted renewable resources. The availability and response speed of demand response are going to be the crucial factors enabling the integration into the future power system as a reliable option. Therefore, taking into account those factors, the possible demand response by the means of local voltage control is proposed in this paper. The constraints and the availability of the proposed new demand response tool are addressed in this paper and are underpinned with results from a field test experiment with experimental MV/LV substation allowing local implementation of voltage control.

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“…Many schemes were presented for usage of EOLTCs in the literatures . The power quality supply and the voltage problems were studied in Bauer and deHaan using ELOTC for 500/10 kV.…”

Section: Introductionmentioning

confidence: 99%

A new strategy based on ANN for controlling the electronic on‐load tap changer

Hasan¹,

Hatata

Badran

et al. 2019

Int Trans Electr Energ Syst

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Summary On‐load tap changer (OLTC) is utilized in regulating the voltage in electric systems. Recently, electronic on‐load tap changer (EOLTC) has been presented to eliminate the OLTC limitations and drawbacks. This paper presents an intelligent controller for EOLTC. The proposed controller aims to regulate the load voltage via fast and accurate adjusting the EOLTC when load voltage or power system voltage is changed. A multilayer feed forward neural network (MFFNN) controller is used in this proposal. The designing, training, and testing of the proposed intelligent controller are done in a MATLAB/Simulink environment. The performance of the EOLTC with the proposed MFFNN controller is achieved using two test distribution systems. The first one consists of a 220‐V source installed with a 50‐kW electrical load during a 220/210 V transformer and a transmission of short line. The second test system consists of an 11‐kV source connected to a (500 kW + 300 kVAR) industrial load through a 11/0.4‐kV, 800‐kVA transformer. This test system is a part of a real distribution feeder picked from North Delta Electric Distribution Company in Egypt. Several cases for the load voltage decreasing and increasing are used to verify the effectiveness of the proposed intelligent controller. The proposed controller shows fast and accurate response.

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Smart transformer for mitigation of voltage fluctuations in MV networks

Cited by 14 publications

References 8 publications

Smart distribution transformer applied to Smart Grids

Smart distribution transformer applied to Smart Grids

Assessment of demand response possibilities by means of voltage control with intelligent MV/LV distribution substation

A new strategy based on ANN for controlling the electronic on‐load tap changer

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