Fundamental aspects concerning wind power system operation. Part 2. Case study

Babescu, Marius; Borlea, Ioan-Daniel; Jigoria-Oprea, Dan

doi:10.1109/melcon.2012.6196463

Cited by 12 publications

(4 citation statements)

References 1 publication

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“…The power given by the WT can be calculated using the following equation: (1) where: ρ -is the air density, R p -the pales radius, C p (λ)power conversion coefficient, l = Rω/V, V-the wind speed, ω -mechanical angular speed (MAS). The power conversion coefficient, C p (λ), could be calculated as follows: This result proves the direct link between reference speed and wind speed.…”

Section: The Mathematical Model Of the Wind Turbinementioning

confidence: 99%

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The determination of the maximum energetic zones for a wind system, operating at variable wind speeds

Erdodi

Petrescu

Șorândaru

et al. 2014

2014 18th International Conference on System Theory, Control and Computing (ICSTCC)

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The main objective of this work is the determination of the relationship between wind speed and optimum speed. In this paper we determine the mechanical energy captured from the wind turbine (WT) and transformed into electricity by permanent magnet synchronous generator (PMSG) connected to WT. We can determine, through simulation, the mechanical angular speed (MAS), ω OPTIM and optimum load resistance (R OPTIM ) for the PMSG where the energy is high, considering the wind speed variable over time. Keywords-wind system, inertial mechanical motion equation, mathematical models for wind turbine, permanent magnet synchronous generator, optimal angular speed, optimal load resistance

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Section: The Mathematical Model Of the Wind Turbinementioning

confidence: 99%

“…The problem is to determine the system load WT-PMSG [1][2][3][4][5][6] so that the produced energy has the maximum value. The obtaining of the maximum energy for given weather conditions wind speed varied significantly over time is the aim of controlling the WT-PMSG system ( Figure 1) [7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

The determination of the maximum energetic zones for a wind system, operating at variable wind speeds

Erdodi

Petrescu

Șorândaru

et al. 2014

2014 18th International Conference on System Theory, Control and Computing (ICSTCC)

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“…In the literature [1][2][3][4][5][6][7][8][9][10][11][12], the operation of the wind turbine (WT) in the maximum energy area is studied at a constant wind speed; using various mathematical models, data from the manufacturing company and/or obtained in laboratory conditions, which are quite different from those in real conditions operation [13][14][15]. For this reason, the electrical energy obtained is less than the maximum value that was obtained in a maximum power point (MPP) operation, at optimum mechanical angular velocity (MAV), ω OPTIM .…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Wind System Operation in the Optimal Energetic Area at Variable Wind Speed over Time

et al. 2019

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Due to high mechanical inertia and rapid variations in wind speed over time, at variable wind speeds, the problem of operation in the optimal energetic area becomes complex and in due time it is not always solvable. No work has been found that analyzes the energy-optimal operation of a wind system operating at variable wind speeds over time and that considers the variation of the wind speed over time. In this paper, we take into account the evolution of wind speed over time and its measurement with a low-power turbine, which operates with no load at the mechanical angular velocity ωMAX. The optimal velocity is calculated. The energy that is captured by the wind turbine significantly depends on the mechanical angular velocity. In order to perform a function in the maximum power point (MPP) power point area, the load on the electric generator is changed, and the optimum mechanical velocity is estimated, ωOPTIM, knowing that the ratio ωOPTIM/ωMAX does not depend on the time variation of the wind speed.

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“…At low power and for isolated zones, the w in electric accumulators is optimal solution [1][2][3][4][5][6]. If a fully controlled rectifier is solution, in energetic terms, can be obtaine load must be adapted to the variable wind this, the relationship between the optim mechanical angular speed (MAS) and measured with the anemometer (AN) is calc The main variables which can be measured are: -wind speed measured by the anemometer -mechanical angular velocity measured PMSG.…”

Section: Introductionmentioning

confidence: 99%