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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   MARCH 2017 , Volume 16 , Number 12 ; Page(s) 509 To 517.
 
Paper: 

POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR

 
 
Author(s):  EBRAHIMI ABBAS*, MOVAHHEDI MOHAMMAD REZA
 
* DEPARTMENT OF AEROSPACE ENGINEERING, SHARIF UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

In this paper, boundary layer control technique is investigated on the NREL-5MW offshore baseline wind turbine blade with numerical simulation of linear DBD plasma actuator in a three-dimensional manner. This wind turbine uses pitch control system to adjust its generated power above its rated speed; but below that the controller is inactive. In the current study, operating condition is set such that the control system is off. Plasma actuator consists of two electrode and dielectric materials. One of these electrodes is connected with the air and another one is encapsulated with the dielectric material. When the necessary high-level AC voltage is applied to electrodes, electric field forms around the actuator and an induced wall jet forms with the ionization of the air around the actuator. Electrostatic model is applied to simulate the effects of plasma actuator and the resulted body force is inserted into flow momentum equations. In the present study, three different control cases are studied. Results show that in all cases, using this actuator leads to improvement of the velocity profile in controlled section, which influences on pressure distribution and results in rotor torque increment. Finally, increasing in torque leads to growth in produced power of the wind turbine. The highest increment in output power occurs when the actuator is installed near the root of the blade in the spanwise direction and before low-speed region in the chordwise direction.

 
Keyword(s): FLOW CONTROL, HORIZONTAL AXIS WIND TURBINE, PLASMA ACTUATOR, ELECTROSTATIC MODEL
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

EBRAHIMI, A., & MOVAHHEDI, M. (2017). POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR. MODARES MECHANICAL ENGINEERING, 16(12 ), 509-517. https://www.sid.ir/en/journal/ViewPaper.aspx?id=572875



Vancouver: Copy

EBRAHIMI ABBAS, MOVAHHEDI MOHAMMAD REZA. POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR. MODARES MECHANICAL ENGINEERING. 2017 [cited 2021July26];16(12 ):509-517. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572875



IEEE: Copy

EBRAHIMI, A., MOVAHHEDI, M., 2017. POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR. MODARES MECHANICAL ENGINEERING, [online] 16(12 ), pp.509-517. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572875.



 
 
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