ELECTRONIC BREAKING APPARATUS USING ARMATURE REACTION OF WIND POWER GENERATOR

摘要

PURPOSE: An electronic brake device using the reaction of the armature of an aerogenerator is provided to reduce the magnitude of unexpected short-circuit current by applying a control technique of pulse width modulation. CONSTITUTION: An electronic brake device using the reaction of the armature of an aerogenerator comprises AC/DC converter(120), a switch element(130), a control unit(150) and a voltage detector(165). The AC/DC converter converts AC power from an aerogenerator(101) to DC power. The aerogenerator produces power with blades(102) rotating by wind. The switch element is connected to the DC output of the AC/DC converter. The switch element is installed to be able to open/shortcircuit the DC output. The switch element is a power transistor. The control unit controls the switch element to shortcircuit the DC output under a condition of forcibly stopping the rotation of the blades.