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Harmonic distortion assessment for a single-phase grid-connected photovoltaic system

Menti, Anthoula; Zacharias, Thomas; Milias-Argitis, John - In: Renewable Energy 36 (2011) 1, pp. 360-368

Nowadays, grid-connected photovoltaic (PV) systems constitute an emerging technology. This has given rise to concerns about their contribution to harmonic distortion levels in utility grids. Valuable insight into the electrical behavior of such a system, including its impact on power quality,...

Persistent link: https://www.econbiz.de/10010805614

Wind turbine effect on the voltage profile of distribution networks

Boulaxis, N.G.; Papathanassiou, S.A.; Papadopoulos, M.P. - In: Renewable Energy 25 (2002) 3, pp. 401-415

The operation of wind turbines in the distribution networks may affect the power quality offered to the consumers. One of the most important considerations is the effect on the voltage profile, i.e. the induced slow voltage variations, which are the subject of this paper. Two alternative...

Persistent link: https://www.econbiz.de/10010803697

Characterisation of flicker emission and propagation in distribution networks with bi-directional power flows

Perera, D.; Meegahapola, L.; Perera, S.; Ciufo, P. - In: Renewable Energy 63 (2014) C, pp. 172-180

in the electricity grid, resulting voltage fluctuations and flicker can be expected to become an important power quality … characterises flicker emission and propagation resulting from fluctuating generating sources connected to a distribution network …. Mathematical models are developed for flicker emission under different generator control strategies and flicker propagation to …

Persistent link: https://www.econbiz.de/10010807078

Experimental study on flicker emissions by photovoltaic systems on highly cloudy region: A case study in Malaysia

Lim, Yun Seng; Tang, Jun Huat - In: Renewable Energy 64 (2014) C, pp. 61-70

Photovoltaic (PV) systems are the most promising renewable energy sources in Malaysia because of its location being around the equatorial region where sunlight is available throughout the year. However, the country is warm and surrounded by the South China Sea and Malacca Straits. A large amount...

Persistent link: https://www.econbiz.de/10011046005

Wind turbine angular frequency analysis by means of computer vision techniques

López, Carlos; Blanes, Jorge; González, Raquel; … - In: Renewable Energy 35 (2010) 12, pp. 2799-2803

The turbine synchronization phenomenon is of great interest in order to estimate the flicker produced by a wind farm …

Persistent link: https://www.econbiz.de/10011046277

Can PV plants provide a reactive power ancillary service? A treat offered by an on-line controller

Cagnano, A.; Torelli, F.; Alfonzetti, F.; De Tuglie, E. - In: Renewable Energy 36 (2011) 3, pp. 1047-1052

This paper proposes an auto-adaptive controller that enables to suitably manage the reactive power supplied by the inverters of PV units whishing to provide the reactive power ancillary service on the base of standard needs or on a voluntary basis. The derived controller is based on an...

Persistent link: https://www.econbiz.de/10010804162

A fuel cell-based dispersed generation system providing system ancillary services through power electronic interfaces

Angelino, R.; Bracale, A.; Carpinelli, G.; Mangoni, M.; … - In: Renewable Energy 36 (2011) 9, pp. 2312-2323

Recent advances in power electronic technology for interfacing dispersed energy resources to distribution grids offer potential solutions to several technical and economical problems in distribution networks. In particular, Dispersed Generation (DG) can be used to provide the usual energy...

Persistent link: https://www.econbiz.de/10010804331

Control of a wind energy conversion system equipped by a DFIG for active power generation and power quality improvement

Boutoubat, M.; Mokrani, L.; Machmoum, M. - In: Renewable Energy 50 (2013) C, pp. 378-386

The aim of this paper is to improve the reactive power compensation and active filtering capability of a Wind Energy Conversion System (WECS). The proposed algorithm is applied to a Doubly Fed Induction Generator (DFIG) with a stator directly connected to the grid and a rotor connected to the...

Persistent link: https://www.econbiz.de/10010804378

Instantaneous wind energy penetration in isolated electricity grids: concepts and review

Weisser, Daniel; Garcia, Raquel S. - In: Renewable Energy 30 (2005) 8, pp. 1299-1308

Diesel-based electricity production is relatively expensive in small autonomous power systems which rely on fuel imports. In such systems, the introduction of renewable energy technologies can effectively reduce overall production costs, through fuel savings. However, the penetration of...

Persistent link: https://www.econbiz.de/10010804388

Technical assessment of the use of a small-scale wind power system to meet the demand for electricity in a land aquafarm in Taiwan

Lai, Chi-ming; Lin, Ta-hui - In: Renewable Energy 31 (2006) 6, pp. 877-892

Due to the widespread aquaculture at coastal area in Taiwan and high wind power potential in the sites, it is worthy to carry out the technical potential assessments of small-scale wind power system used for aquaculture in Taiwan. The present work analyzed wind power potential, described the...

Persistent link: https://www.econbiz.de/10010805088