Disclosed are a
plasma control device and method for blades of a
wind driven generator. A
plasma exciter is composed of an exposed
electrode, an implantation
electrode and a medium
blocking layer, wherein the exposed
electrode and the implantation electrode are pasted to the upper surface and the lower surface of the medium
blocking layer respectively; the exposed electrode is exposed in air and connected with the
high pressure end of an excitation power supply (7); the surface of the implantation electrode is wrapped by insulation materials, and the implantation electrode is connected with a ground electrode. The
plasma exciter is installed on the surfaces of the blades of the
wind driven generator smoothly. According to the environment where the
wind driven generator is located and freezing parameters of the surfaces of the blades, a
control system (11) adjusts the output waveform, potential, frequency and duty ratio of the excitation power supply (7), and controls the excitation power supply to be opened and closed. The plasma
exciter produces air
discharge under the action of the
high voltage of the excitation power supply (7), produced plasma has the
impact function, the acceleration function and the heating function on
ambient air, flow separation on the surfaces of the blades of the wind driven generator is restrained, and
icing is prevented and removed.