Simulations and field test results for potential applications of LV DC distribution network to reduce flicker effect

Musolino, Vincenzo; Piegari, Luigi; Tironi, E.; Martini, L.; Brambilla, Alessandro; Tornelli, Carlo

doi:10.1109/ichqp.2010.5625331

Cited by 14 publications

(6 citation statements)

References 3 publications

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“…The graphical dependencies, experimentally determined, characteristic for this phenomenon and for its effects require an analytical expression in order to facilitate the flicker determination methodology and also of the flickermeter software implementation [7,8,9].…”

Section: Discussionmentioning

confidence: 99%

Graphic functions analytical identification at flicker evaluation

Polec

Maier

Pavel

et al. 2014

2014 16th International Conference on Harmonics and Quality of Power (ICHQP)

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The flaring phenomenon or flicker is framed with no less than three indicators for which there are normalized values. The methodologies for determining indicators as flicker dose and severity as well as the voltage fluctuations limits use graphic functions, experimentally determined. A LabVIEW original program is used in order to identify the optimal analytical expressions for graphic or tabular functions like graphic functions from the flicker evaluation. It aims, on the one hand, to make easier the software implementation of the flicker indicators calculation methods and on the other hand to ensure their analytical handling. Simple expressions identified for graphic functions, relative to flicker, present acceptable relative mean square deviations, which allow the flicker dose determination with the required precision. Also, comparing the voltage fluctuations amplitudes with standardized values can be directly made, on an analytical way.

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Section: Discussionmentioning

confidence: 99%

Graphic functions analytical identification at flicker evaluation

Polec

Maier

Pavel

et al. 2014

2014 16th International Conference on Harmonics and Quality of Power (ICHQP)

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“…It has been pointed out in [5] that the power supply capacity of DC distribution network is enlarged by 1.5 times with the same cost and occupying space of transmission lines. Paper [6] presents that DC distribution network with energy storage system (ESS) can help to solve the power quality problem such as flicker effect when the impact load is integrated into the grid. Furthermore, the cable loss of the DC distribution is only 15% to 20% of that of AC distribution if the DC voltage is two or three times higher than AC voltage [7], which leads to higher efficiency of the whole system.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Electric Components in Multi-terminal DC Distribution Network

Yi-chen¹,

Xie²,

Zhao³

et al. 2017

dtmse

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As the existing AC power system is faced with development bottleneck such as the integration of renewable energy sources, high power quality and so on, the introduction of multi-terminal DC distribution network in the future smart grids is of significant importance. This paper presents a novel modeling method of electric components from the view of control instead of the detailed modeling of each IGBT-based converter. Three models are put forward to imitate the electrical characteristics of load-converter module, source-converter module and DC transformer. The proposed three models can cover all electric components in the DC distribution network, which lays the foundation for the further research on the DC distribution network. A six-terminal DC distribution network is constructed in Mat lab/Simulink based on the three proposed models, which verifies the correctness of the proposed modeling method.

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“…A wind farm with internal dc network arrangement was discussed in [9]. The dc-distribution system involves a better integration of distribution generators and the storage systems, compared with the ac-grid with respect to bi-directional power exchange and power quality [10], [11]. Whereas in [12], the protection schemes were proposed for permanent magnet synchronous generator (PMSG) wind turbines farm connected in parallel to dc-link.…”

Section: Introductionmentioning

confidence: 99%

Design and development of controller for PMSG based Wind Energy Conversion system

Vijayalakshmi¹,

Arutchelvi²

2014

2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014]

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This paper use a suitable power converter topology and design a suitable controller for a Wind Energy Conversion system with Permanent Magnet Synchronous Generator (PMSG) for stand alone and grid integrated operations. The present work presents the system in which a PMSG feeds an isolated load through a closed loop boost converter. The output voltage and frequency of the PMSG is variable in nature due to non uniform wind velocities and is not synchronized with the grid frequency. In order to condition and feed it to grid we need power electronic interface. The variable ac output is rectified by a diode rectifier and maintained constant by a boost converter. The boost converter is provided with a closed loop feedback control, which is designed using PI controller. In this controller the output voltage is continuously sensed and duty ratio of the switch is varied to maintain the DC link voltage constant. The converter output is fed to three phase inverter which employs a sine PWM technique, the output of which is fed to the load. The power converters and together with independent control systems can effectively improve the output voltage and frequency of the wind PMSG feeding an isolated load. The whole system is simulated using MATLAB/ Simulink and the results are presented to demonstrate the veracity of the developed control scheme. Keywords-Permanent Magnet synchronous Generator (PMSG); Closed loop boost converter; Three phase inverter; Three phase diode bridge rectifierI.

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Simulations and field test results for potential applications of LV DC distribution network to reduce flicker effect

Cited by 14 publications

References 3 publications

Graphic functions analytical identification at flicker evaluation

Graphic functions analytical identification at flicker evaluation

Modeling of Electric Components in Multi-terminal DC Distribution Network

Design and development of controller for PMSG based Wind Energy Conversion system

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