Abstract: Wind poses dynamic characteristic and its speed changes constantly which affects the power generation through a Wind turbine continuously. To get a solution to this problem initially a Wind turbine Emulator for Wind Energy conversion system using a Separate Excited DC motor was built then it was mechanically coupled to the Synchronous Generator. The strategy control was implemented in simulation using Matlab/Simulink. The developed model provides a constant output torque despite the varying wind speed which ranges from the wind turbine “rated wind speed” up to the “cut-out wind speed” .It was achieved by maintaining the torque of the wind turbine to the set-point using Pitch angle control technique which comprises of an Integral controller and a switch .The output torque of the Wind turbine was fed to DC motor which rotates with a speed set as reference. Each cycle of simulation consisted of five input of varying wind speed .A constant output torque was obtained as against the torque s

• Publication Date: 25-May-2014
• DOI: 10.15224/978-1-63248-028-6-02-45
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Abstract: This paper presents the investigation on electrostatic devices for material handling purpose. Few example of the device is tested for work piece attachment. It is shown that the adhesive force is at a useful level to hold a small work piece. The experiment also confirms the qualitative advantages of electrostatic adhesion, such as fast attachment, low power consumption, high force to mass ratio, and easy detachment. It also works on non-conductive work piece with fairly rough surface. Further actuating the electrostatic devices at higher voltage shows that only within a certain voltage level the F - V relation is quadratic as predicted by the parallel capacitor model. Beyond this range, saturation of output force is observed.

• Publication Date: 25-May-2014
• DOI: 10.15224/978-1-63248-028-6-01-99
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