Modeling, control, and simulation of dual rotor wind turbine generator system

No, Tae Soo; Kim, J.-E.; Moon, Jae-Sung; Kim, S.J.

doi:10.1016/j.renene.2009.01.019

Cited by 60 publications

(40 citation statements)

References 16 publications

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“…Their field tests showed that a dual-rotor turbine produces 43.5% more annual energy than a single-rotor turbine of the same type. In addition, a smaller gear ratio is needed because of higher tip speeds achieved by smaller blade length in comparison with the conventional system in case of the same power output [12]. According to a field test demonstrated in California [13], energy extraction from a wind turbine using contrarotating system increased by up to 40% over an equivalent wind turbine with only one rotor.…”

Section: Contrarotating Blade Systemmentioning

confidence: 99%

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Performance of a Contrarotating Small Wind Energy Converter

Habash

Groza

Yang

et al. 2011

ISRN Mechanical Engineering

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Responding to more demand in coming years, the task of the small wind energy industry requires progress on several fronts-the public policy initiatives, technology development, and market growth. One important issue of the wind energy utilization is the conversion efficiency of the usable energy into productive power. Enhanced technologies such as contrarotating blades, gearbox and lubrication, airfoils, generators, and power electronics will lower cost and increase energy production. The purpose of this paper is, therefore, to reinforce the effectiveness of employing contrarotating system to enhance the performance of a small wind energy converter (SWEC). With this concept, the SWEC works more efficiently and therefore produces more energy in a unit turbine area. To verify the SWEC performance, a research model has been built and tested over a range of operating conditions. Wind tunnel tests were carried out to ascertain the overall performance of the contrarotating SWEC. Results are presented for cases of different wind speeds and Reynolds number. The results demonstrated a significant increase in wind energy conversion efficiency and capability of operation at lower wind speeds while keeping up performance compared to a single-rotor system of the same type.

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Section: Contrarotating Blade Systemmentioning

confidence: 99%

“…The contrarotating SWEC clearly has a promise for wind energy, and after preliminary research and field studies [6][7][8][9][10][11][12][13], it was decided to proceed with a small SWEC prototype for testing and evaluation.…”

Section: Contrarotating Blade Systemmentioning

confidence: 99%

Performance of a Contrarotating Small Wind Energy Converter

Habash

Groza

Yang

et al. 2011

ISRN Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…A feasibility study [11] provides sufficient evidence to look closer at the concept to eventually produce quantifiable comparisons to other turbines. Dual-rotor turbines can produce 43.5 % more annual energy than a single rotor turbine of same type [12]. In addition, a smaller gear ratio is needed because of higher tip speeds achieved by smaller blade length in comparison with the conventional system in case of the same power output [13].…”

Section: B Energy Conversion Efficiencymentioning

confidence: 99%

Performance optimization of a dual-rotor wind turbine system

Habash

Groza

Guillemette³

2010

2010 IEEE Electrical Power &Amp; Energy Conference

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We are building an efficient and smart wind turbine system. The significant features of this turbine are its dual rotor blade system which is positioned horizontally at upwind and downwind locations, its drive train which is installed horizontally inside the tower with a new efficient induction generator, and its control and safety systems. The project focuses mainly on the methodology to analyze the power flow performance. The scientific literature indicates that a dual-rotor system could extract additional 20-30% power compared to a single rotor system from the same wind stream. Our wind tunnel test indicates that a scaled-down version of the dual-rotor turbine system may produce up to 60% more power than a single-rotor system. Designed for on-site power generation by commercial, industrial, and residential electric users in remote locations, our model uses wind tunnel effect to capture and amplify wind for optimized production of energy. It is intended that this turbine system will be available in tower-mounted design and can capture wind in regions where it has low speed wind. The successful design should allow an economical transition to a utility scale.

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“…The main idea is that individual control problems are solved utilizing reduced and simpler controllers [13]. The proposed approach is relevant to solving complex control problems requiring more than one individual controller [27]. In addition a type 2 fuzzy aggregator is applied in the proposed method to combine and improve the results of the individual controllers.…”

Section: Introductionmentioning

confidence: 99%