Optimal adaptation of the wind rotor to the permanent magnets synchronous generator of a small passive wind turbine

Aredjodoun, Jacques; Chetangny, Patrice Koffi; Houndedako, Sossou; Vianou, Antoine; Chamagne, Didier; Espanet, Christophe

doi:10.1109/powerafrica.2019.8928823

Cited by 4 publications

(5 citation statements)

References 2 publications

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“…These studies show that wind power systems can be expressed and analyzed by constructing models. Aredjodoun et al optimized the synchronous generator with permanent magnets, and ensuring mutual adaptation between the wind rotor and the optimized generator, so that the assembly was more attractive and more sensitive to the conversion of wind energy [14]. Xie et al studied the matching characteristics of the wind turbine and generator of the small H-shaped vertical axis wind turbine [15].…”

Section: Introductionmentioning

confidence: 99%

Study on a performance matching method of wind rotor and generator based on energy transfer

Ma,

Song,

Jia

et al. 2023

PLoS ONE

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Wind power systems are a promising form of energy supply. At present, most of the studies focuses on the performance of individual components such as wind rotors or generators, and the overall output effect of wind power system is determined by the characteristics of wind rotor and generator and their combined characteristics. However, the evaluation of the overall output characteristics of the system is rarely considered. In order to investigate the overall output of the system quickly, a performance matching method of wind rotor and generator based on energy transfer is proposed in this paper. Based on the series operating characteristics of the wind power system model, the energy transformation process of the wind rotor, generator and the whole system are unified described by energy transfer. On the premise that the performance of wind rotor and generator is known, the transfer function model of each component is established, and on this basis, the transfer function model of the overall system is obtained. Then, the overall output effect of the system is analyzed and evaluated by this system transfer function model. The performance of the model is analyzed and compared by using a vertical axis wind power system coupling test bench and MATLAB/Simulink software. The results show that the error between the system output based on the theoretical model and the wind tunnel test is less than 6.5%, and the trend of the simulation and the test curve of the system output is consistent. Therefore, this method can be used to quickly predict the overall output performance of the wind turbine and generator on the premise that the performance of each component is known, without the need to connect each component to a wind power system for testing.

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Section: Introductionmentioning

confidence: 99%

Study on a performance matching method of wind rotor and generator based on energy transfer

Ma,

Song,

Jia

et al. 2023

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Therefore, the design approach for the uncontrolled passive PMSGs, as in [8][9][10], where the wind generator was optimally designed according to a perceived "typical wind cycle", does not guarantee good power matching at low wind speeds and is not always considered ideal. In [11], the wind turbine's parameters were adjusted according to the generator to improve power matching. However, changing the wind turbine's parameters is not desirable.…”

Section: Introductionmentioning

confidence: 99%

“…The challenge then, when designing these PMSGs, is to ensure good power matching with the wind turbine at lower wind speeds, as well as maximum power matching at the rated wind speed. It should also be noted that the PMSGs in [8][9][10][11] were all for power ratings lower than 1.5 kW.…”

Section: Introductionmentioning

confidence: 99%

“…In terms of the design optimisation strategy for the PMSGs, there are multiple approaches found in the literature. As already discussed, there are those in [8][9][10][11] for a passive system. In a more general sense, the recent reviews in [12,13] on optimisation trends for electric machines highlighted that the use of genetic algorithms for multi-objective design optimisation approaches is favourable for design problems with several performance measures.…”

Section: Introductionmentioning

confidence: 99%

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On the Design and Topology Selection of Permanent Magnet Synchronous Generators for Natural Impedance Matching in Small-Scale Uncontrolled Passive Wind Generator Systems

Labuschagne

Kamper

2022

Energies

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Small-scale uncontrolled passive wind generator systems are an attractive solution for rural energy generation because of the system’s reliability and low cost. However, designing these uncontrolled wind generators for good power matching with the wind turbine is challenging and often requires external impedance matching. In this paper, permanent magnet generators with different stator and rotor structures were investigated and designed to increase the generator’s synchronous inductance for a natural impedance matching. For the design methodology, multi-objective optimisation was used to design the generators for near-maximum turbine power matching, whereby internal impedance matching was reached as much as possible. It was shown that altering the placement and orientation of the permanent magnets in the rotor is a viable method to achieve the desired impedance matching; however, these generators do not have the best performance. It was found that the surface-mounted permanent magnet generator with semi-closed slots was the optimum topology. An optimised generator prototype was tested for the experimental validation. All designs were verified by comparing the results of 2D and 3D finite-element analysis.

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“…Designing the PMSG for this natural impedance matching, so that better power matching is achieved at all wind speeds, is difficult (power curve C resembles that of a typical PMSG). In [9], the PMSG is designed and then the wind turbine's parameters are adjusted for better impedance matching. However, changing the wind turbine's parameters is not always desirable.…”

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confidence: 99%

Wind Generator Impedance Matching in Small-Scale Passive Wind Energy Systems

Labuschagne

Kamper

2021

IEEE Access

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In this paper, the improved turbine power matching of passive wind energy systems for dcconnected battery storage applications with an impedance matching method is investigated. The passive system uses a direct-drive permanent magnet synchronous generator and is directly connected via a diode rectifier to the dc fixed-voltage battery storage. To improve power matching, an external inductance is added to the passive system between the generator and the diode rectifier. A static finite element based solution method is proposed to accurately calculate the necessary external inductance to achieve near maximum power point matching. It is shown that the proposed finite element based calculation method is computationally efficient and excellently suited for generator design optimization, which is critical for this application. It is also shown that by rewinding existing machines for the correct cut-in speed and adding the external inductance for improved power matching, existing machines can be effectively recycled for passive wind energy systems. The proposed static finite element solution method's accuracy and improved power matching are confirmed with measured results on a sub 5 kW power level.

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Optimal adaptation of the wind rotor to the permanent magnets synchronous generator of a small passive wind turbine

Cited by 4 publications

References 2 publications

Study on a performance matching method of wind rotor and generator based on energy transfer

Study on a performance matching method of wind rotor and generator based on energy transfer

On the Design and Topology Selection of Permanent Magnet Synchronous Generators for Natural Impedance Matching in Small-Scale Uncontrolled Passive Wind Generator Systems

Wind Generator Impedance Matching in Small-Scale Passive Wind Energy Systems

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