Development and testing of a bidirectional distribution electronic power transformer model

Alepuz, Salvador; González-Molina, F.; Martin-Arnedo, J.; Martínez-Velasco, Juan A.

doi:10.1016/j.epsr.2013.10.010

Cited by 26 publications

(18 citation statements)

References 24 publications

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“…The power flows from the primary converter with a leading phase angle to the secondary converter with lagging phase angles, the amount of the transferred power being controlled by the phase shift between the two square wave voltage, and the DC link voltages magnitudes at the two ends as given by Eq. 6 (Alepuz et al, 2014):…”

Section: Operating Principle and Modelling Of The Pedtmentioning

confidence: 99%

Development of power electronic distribution transformer using fuzzy logic control

Ahmed¹

2018

Int. j. adv. appl. sci.

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This paper presents the design and analysis of power electronic distribution transformer (PEDT). The PEDT is the new distribution transformer based on power high-frequency transformer and electronic converter. Operating the PEDT with the conventional proportional integral (PI) control does not give a satisfactory dynamic response and power quality. Improved power quality dynamic performance of PEDT can be achieved by using intelligent control. This study proposed a novel controller for a PEDT based on fuzzy logic control (FLC). The performance and power quality of the proposed PEDT are improved by replacing the conventional PI controller with the modern FLC. The proposed model was simulated using MATLAB/Simulink in order to evaluate the behavior of the PEDT. The model was tested under the study state and transient state. The results show that the PEDT with the proposed FLC gives a better dynamic performance and power quality compared to the PI controller.

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Section: Operating Principle and Modelling Of The Pedtmentioning

confidence: 99%

Development of power electronic distribution transformer using fuzzy logic control

Ahmed¹

2018

Int. j. adv. appl. sci.

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“…The proposed bidirectional SST design is based on the commonly accepted three-stage design [15][16][17][18]: (1) the input voltage at power frequency is first converted into dc voltage by the MV-side three-phase converter working as rectifier; (2) the isolation stage is implemented by means of a dual active bridge (DAB) dc-dc converter, with an intermediate high-frequency transformer that reduces the MV square waveform into a LV square waveform; (3) a low voltage (LV) three-phase dc/ac converter working as inverter provides the output power-frequency ac voltage to LV loads.…”

Section: Sst Configurationmentioning

confidence: 99%

“…The cases have been selected taking into account those presented in previous works [12,[15][16][17]. Figures 7-10 depict the main results of each case study.…”

Section: Case Studiesmentioning

confidence: 99%

“…Isolation stage: The amount and direction of the active power flow between primary and secondary of each high-frequency transformer is according to the following expression [25] (see also [15][16][17]):…”

mentioning

confidence: 99%

“…Other parameters, such as all those required for modelling the isolation stage and the LV-side output stage were basically those used in some previous papers by the authors; see [15][16][17]. Since the selection of some parameters was made without following any optimization procedure, a better selection remains as a future work.…”

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confidence: 99%

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EMTP Model of a Bidirectional Cascaded Multilevel Solid State Transformer for Distribution System Studies

et al. 2017

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This paper presents a time-domain model of a MV/LV bidirectional solid state transformer (SST). A multilevel converter configuration of the SST MV side is obtained by cascading a single-phase cell made of the series connection of an H bridge and a dual active bridge (dc-dc converter); the aim is to configure a realistic SST design suitable for MV levels. A three-phase four-wire converter has been used for the LV side, allowing the connection of both load/generation. The SST model, including the corresponding controllers, has been built and encapsulated as a custom-made model in the ATP version of the EMTP for application in distribution system studies. Several case studies have been carried out in order to evaluate the behavior of the proposed SST design under different operating conditions and check its impact on power quality.

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Power Electronics Applications

Martínez-Velasco

Martin-Arnedo²

2019

Transient Analysis of Power Systems

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Development and testing of a bidirectional distribution electronic power transformer model

Cited by 26 publications

References 24 publications

Development of power electronic distribution transformer using fuzzy logic control

Development of power electronic distribution transformer using fuzzy logic control

EMTP Model of a Bidirectional Cascaded Multilevel Solid State Transformer for Distribution System Studies

Power Electronics Applications

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