METHOD FOR MULTIPLEEOPERATION OF SELFFEXCITING INDUCTION MACHINE,申请号JP19790022753-传众专利搜索

METHOD FOR MULTIPLEEOPERATION OF SELFFEXCITING INDUCTION MACHINE

申请公布号：JPS55114197(A)

申请号：JP19790022753

申请日期：1979.02.27

申请公布日期：1980.09.03

申请人：

MITSUBISHI ELECTRIC CORP

发明人：KAWABATA OSAMU;YAMASHITA RIYUUSABUROU

分类号：H02P27/06;H02J3/38;H02J3/46

主分类号：H02P27/06

摘要：PURPOSE:To perform stable multiple-operation accurately all the time by detecting the currents flowing in a plurality of power converters connected in parallel and controlling the control-leading-angles so that said currents are balanced. CONSTITUTION:In the case of an operating condition wherein currents are unbalanced, for example, the currents flowing in a power converter 4 are large and the currents flowing in a power converter 6 are small, the output of an operation amplifier 26 operates so as to reduce the magnitude of the signal of a phase-angle setter 17, and the output of an operation amplifier 27 operates so as to add the signal of the phase-angle setter 17. Therefore, the control-lead-angle of the triggering signal to be applied to the thyristors of the power converter 4 becomes small, and the currents are decreased. While the control-lead-angle of the triggering signals to be applied to the thyristors of the power converter 6 becomes large, the currents are increased, and the currents flowing in both power converters 4 and 6 are balanced.