发明授权
- 专利标题： Circuit arrangement including a number of converters, in particular direct converters, in Y connection
- 专利标题（中）： 电路布置包括多个转换器，尤其是直接转换器，Y连接
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申请号： US561279申请日： 1975-03-24
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公开(公告)号： US3970914A公开(公告)日： 1976-07-20
- 发明人: Theodor Salzmann , Franz Wesselak , Wolfgang Timpe
- 申请人： Theodor Salzmann , Franz Wesselak , Wolfgang Timpe
- 申请人地址： DT Munich
- 专利权人： Siemens Aktiengesellschaft
- 当前专利权人： Siemens Aktiengesellschaft
- 当前专利权人地址： DT Munich
- 优先权： DT2415398 19740329
- 主分类号： H02M5/27
- IPC分类号： H02M5/27 ; H02M5/45
摘要：
A circuit arrangement is disclosed comprising three direct converters which are fed from an a.c. voltage network. The converters are arranged in a Y configuration and are connected to a three-phase load. To increase the transmitted power and to vary the reactive power requirement, the circuit arrangement is provided with means for generating a control voltage for the control unit of at least one of the three converters such that the output voltage of this converter has a periodic waveform which includes essentially no fifth and seventh order harmonics. Additionally, the load-side conductor currents of the three converters are controlled with control signals having sinusoidal waveforms. A particular form used for the control voltage is a trapezoidal waveform.
公开/授权文献
- US5716492A Tape cutter and self-adhesive label peeler 公开/授权日：1998-02-10
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