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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
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Improvement of electrical arc furnace operation with an appropriate model
Hocine, Labar; Yacine, Djeghader; Kamel, Bounaya; … - In: Energy 34 (2009) 9, pp. 1207-1214
and R arc function are discussed in detail. This new operating strategy has been determined taking into account Flicker …
Persistent link: https://www.econbiz.de/10010809551
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Flicker mitigation in a doubly fed induction generator wind turbine system
Machmoum, Mohamed; Hatoum, Ahmad; Bouaouiche, Toufik - In: Mathematics and Computers in Simulation (MATCOM) 81 (2010) 2, pp. 433-445
established and the adopted control strategies for machine side and grid side converters are described. Flicker phenomenon is … flicker severity is evaluated using flickermeter. Appropriate vector power control of the machine side converter is proposed … and applied to achieve flicker mitigation. …
Persistent link: https://www.econbiz.de/10010749975
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Power quality evaluation in deregulated power system using matrix method
Dahiya, Surender; Jain, Dinesh Kumar; Kumar, Ashok; … - In: International Journal of Global Energy Issues 28 (2007) 1, pp. 1-10
Power quality has emerged as a challenging area in the context of deregulation, wherein electricity distribution buyers and sellers carry out mutually agreed-upon exchanges. A market for active power and reactive power is installed in many places as a result of a deregulation process. However,...
Persistent link: https://www.econbiz.de/10008539005
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Power quality evaluation in deregulated power system using matrix method
Dahiya, Surender; Jain, Dinesh Kumar; Kumar, Ashok; … - In: International Journal of Global Energy Issues 28 (2007) 1, pp. 1-10
Power quality has emerged as a challenging area in the context of deregulation, wherein electricity distribution buyers and sellers carry out mutually agreed-upon exchanges. A market for active power and reactive power is installed in many places as a result of a deregulation process. However,...
Persistent link: https://www.econbiz.de/10005751634
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Flicker Mitigation by Speed Control of Permanent Magnet Synchronous Generator Variable-Speed Wind Turbines
Hu, Weihao; Zhang, Yunqian; Chen, Zhe; Hu, Yanting - In: Energies 6 (2013) 8, pp. 3807-3821
Grid-connected wind turbines are fluctuating power sources that may produce flicker during continuous operation. This … and permanent magnet synchronous generator (PMSG) developed in the simulation tool of PSCAD/EMTDC. Flicker emission of … effects is the significant part in the flicker emission of variable speed wind turbines with PMSG during continuous operation …
Persistent link: https://www.econbiz.de/10010681654
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Assessment of flicker limits compliance for wind energy conversion system in the frequency domain
Vilar, Carolina; Amarís, Hortensia; Usaola, Julio - In: Renewable Energy 31 (2006) 8, pp. 1089-1106
Fixed-speed wind turbines produce voltage flicker during switching operations and they also produce flicker during … continuous operation. In order to avoid power quality problems to consumers, it would be important to predict flicker emission … from wind turbines at a certain site previously to installation. This paper focuses on a method to perform a fast flicker …
Persistent link: https://www.econbiz.de/10011045810
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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
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A novel MPPT (maximum power point tracking) algorithm based on a modified genetic algorithm specialized on tracking the global maximum power point in photovoltaic systems affected...
Daraban, Stefan; Petreus, Dorin; Morel, Cristina - In: Energy 74 (2014) C, pp. 374-388
This article presents a novel MPPT (maximum power point tracking) algorithm, based on a modified GA (genetic algorithm). When photovoltaic systems are affected by partial shading, a GMPPT (global maximum power point tracking) algorithm is required to increase the energy harvesting capability of...
Persistent link: https://www.econbiz.de/10010931403
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Short-term predictability of photovoltaic production over Italy
De Felice, Matteo; Petitta, Marcello; Ruti, Paolo M. - In: Renewable Energy 80 (2015) C, pp. 197-204
power production. As expected, cloud cover variability strongly affects solar power production, we observe that while during …
Persistent link: https://www.econbiz.de/10011263776