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

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EBRAHIMI ABBAS; MOVAHHEDI MOHAMMAD REZA

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Journal: Modares Mechanical Engineering Year:2017 | Volume:16 | Issue:12 Page(s): 509-517

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Title

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

Author(s)

EBRAHIMI ABBAS | MOVAHHEDI MOHAMMAD REZA | Issue Writer Certificate

Keywords

FLOW CONTROLQ1

HORIZONTAL AXIS WIND TURBINEQ1

PLASMA ACTUATORQ2

ELECTROSTATIC MODELQ1

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.

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APA: Copy

EBRAHIMI, ABBAS, & MOVAHHEDI, MOHAMMAD REZA. (2017). POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR. MODARES MECHANICAL ENGINEERING, 16(12 ), 509-517. SID. https://sid.ir/paper/178182/en

Vancouver: Copy

EBRAHIMI ABBAS, MOVAHHEDI MOHAMMAD REZA. POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR. MODARES MECHANICAL ENGINEERING[Internet]. 2017;16(12 ):509-517. Available from: https://sid.ir/paper/178182/en

IEEE: Copy

ABBAS EBRAHIMI, and MOHAMMAD REZA MOVAHHEDI, “POWER IMPROVEMENT OF A LARGE HORIZONTAL-AXIS WIND TURBINE BY DBD PLASMA ACTUATOR,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 12 , pp. 509–517, 2017, [Online]. Available: https://sid.ir/paper/178182/en

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