Abstract
Nothing has significantly impacted the wind industry as have power electronics and computer technology. Electronics have influenced not only the techniques for generating electricity but also the ability to operate and control a wind rotor in a harsh, windy environment. Microprocessors and power electronics now resolve many operating issues, and in this, small machines have benefited from the development of new controllers and sensors designed for large machines. Early controllers could monitor only a few parameters, whereas modern controllers can monitor hundreds, process their inputs, and make adjustments to maximize operation. Wind turbines are machines that need periodic inspections and routine maintenance for components that require lubrication or cleaning. Brakes and gearboxes require the most attention and potential replacement.
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