풍력용 동기발전기의 전기자 반작용을 이용한 전기 제동방식에 관한 연구

The mechanical parts of small wind power generator less than 10 ㎾ are manufactured in the form of removing most of the accelerators. The braking system to protect blade from damages caused by high wind speed is manufactured in a manner having apparatus system(furling), manual brake or no brake. This study is on braking system in small size wind power generator, and carried out survey as following steps by applying electric braking system which uses armature reaction. We explained the principle of electric braking system and the principle of existing braking system. Also, this paper interpreted short circui tcurrent through open circuit and short circuit, as well as checking brake system's action using armature reaction with real construction of control device.