A European Benchmarking of voltage quality regulation

Bollen, M.H.J.; Beyer, Yvonne; Styvactakis, Emmanouil; Trhulj, Jasmina; Vailati, Riccardo; Friedl, Werner

doi:10.1109/ichqp.2012.6381171

Cited by 13 publications

(7 citation statements)

References 2 publications

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“…This can be especially seen in Figure 3c, where the battery is discharged during the use of the floodlights (8th of July, 4 − 6 p.m.) in order to reduce the voltage peak. It is important to remark that the studied network is very robust and voltage peaks are always below unacceptable levels (a maximum voltage deviations assumed as acceptable at the demo-case will be ±5%, following [38]).…”

Section: Resultsmentioning

confidence: 99%

Power Quality in Smart Distribution Systems with Electric Battery, Large Loads and PV Generation.

Ortiz¹,

Petersen²,

Mikut³

et al. 2019

Proceedings of the 13th International Renewable Energy Storage Conference 2019 (IRES 2019)

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A change in the electricity consumption is taking place, where one of the main reasons is the large increase in Distributed Generation, as photovoltaic (PV) systems and electric batteries in the low voltage (LV) distribution grid. This could translate in specific cases into a situation of increased peak load and bigger voltage fluctuation. Therefore, an effective control of the grid voltage is necessary to achieve a stable energy supply from renewable sources. What services can a battery provide? The authors present an analysis of voltage control and other battery services in a LV grid. A flexible model based on Python is developed and used to solve a multi-period optimal power flow problem. They propose an optimised distributed voltage regulation. The power flow equations are linearised around a stable operation point, which allows high feasibility and computation speed. Then a receding horizon framework is described, including 24h and 1h updated forecasts. The analysis is performed on a LV network with large loads of a stadium, large PV generation (690kWp) and with a 1MWh battery. The new method provides an optimization of the grid operation (reduced voltage variation and cost of energy imported from the grid) under different seasonal weeks. Index Terms-Battery use, voltage control, complex power, multi-period optimal power flow, receding horizon, low voltage, PV

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Section: Resultsmentioning

confidence: 99%

Power Quality in Smart Distribution Systems with Electric Battery, Large Loads and PV Generation.

Ortiz¹,

Petersen²,

Mikut³

et al. 2019

Proceedings of the 13th International Renewable Energy Storage Conference 2019 (IRES 2019)

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show abstract

“…Unfortunately, no economic regulation of the voltage dips is still active [31]. However, some preliminary studies [32,33] offer valuable figures resulting from measurements, survey and simulations, which can guide in deriving the economic value to assign to the voltage dips.…”

Section: Cost Of Voltage Dipsmentioning

confidence: 99%

Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips

et al. 2020

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This paper deals with the optimal planning of the electrical energy storage systems in the microgrids aimed at cost minimization. The optimization accounts for the compensation of the voltage dips performed by the energy storage systems. A multi-step procedure, at the first step, identifies a set of candidate buses where the installation of a storage device produces the maximum benefit in terms of dip compensation; then, the life cycle costs in correspondence of different alternatives in terms of size and location of the storage systems are evaluated by considering an optimized use of the energy storage systems. The simulations on a medium voltage microgrid allowed validating the effectiveness of the proposed procedure.

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“…Voltage dip is the voltage measurement that is recorded between 0.1 pu to 0.9 pu for the duration of 0.5 cycles to 30 cycles [9]. Voltage swell is the voltage measurement that is recorded between 1.1 pu to 1.8 pu for the duration of 0.5 cycles to 30 cycles [22]. The voltage events may not severely affect induction motors however they severely affect computing devices.…”

Section: A Harmonics and Power Generationmentioning

confidence: 99%

Relation between Solar PV Power Generation, Inverter Rating and THD

Ali¹,

Amudha²,

M³

et al. 2019

IJEAT

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The increasing threat of global warming call for the policy chances that increase the share of renewable energy-based generation including the integration of solar PV generation in the distribution networks. However, the distribution networks are designed and operated for centralised power generation and unidirectional power flow. The integration of solar PV systems leads to distributed power generation and bidirectional power flow, which results in operation challenges, such as power quality problems. These problems required to be quantified to develop appropriate solutions. Therefore, in this paper, a power quality auditing is conducted for a 50 kVA solar PV power plant and the resultant observations are presented in this paper. The study is conducted for two types of days, which are: (i) weekend day; (ii) weekday. The former type of day has relatively lower demand compared to the later type day. A number of observations are made and they are presented in this paper. Few important observations and conclusions are presented in this paper. The relation among the power generation, harmonics and inverters rating are observed and presented. Moreover, the quantification of voltage dips is also presented in this paper.

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A European Benchmarking of voltage quality regulation

Cited by 13 publications

References 2 publications

Power Quality in Smart Distribution Systems with Electric Battery, Large Loads and PV Generation.

Power Quality in Smart Distribution Systems with Electric Battery, Large Loads and PV Generation.

Planning of Distributed Energy Storage Systems in μGrids Accounting for Voltage Dips

Relation between Solar PV Power Generation, Inverter Rating and THD

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