... the frequency when the turbine speed is low. Solve the problems of instability voltage; improve the efficiency of the converter; save ... use spline shaft, dual shafts, flange or other installation methods.Tai’an Sunshine Power Electric Machinery Co., Ltd.TEL :86- ... 18954868821,86-0538-5076117,5076118,FAX: 86-0538-5076111 Vertical wind turbine alternator 0.6 ...