大功率同步电机的驱动器通常是自然换流的交交变频器。
High-power synchronous motor drives are usually fed from naturally commutated cycloconverters.
交交变频器采用面向线路的模型，并加入两管换流模式和正、负组换流模式。
Circuit oriented model of cycloconverter is developed by adding tube changing mode and group changing mode.
本文对一种用于煤矿井下防爆绞车驱动的交交变频器——鼠笼式异步电机传动系统做了全面的介绍。
The paper thoroughly introduces the ac-ac frequency converter in driving system of asynchronous motor for underground coal mine explosion-proof winder.
本文将一种三角形联接方式的交交变频器应用于分频输电系统中，这种接线方式的交交变频换流站的优点是接线方式简单，整流桥数量减少50%。
In this thesis, a new cyclo converter with the delta connection is applied in the FFTS, which can simplify the connection and decrease the number of bridge circuits by 50%.
本文将一种三角形联接方式的交交变频器应用于分频输电系统中，这种接线方式的交交变频换流站的优点是接线方式简单，整流桥数量减少50%。
In this thesis, a new cyclo converter with the delta connection is applied in the FFTS, which can simplify the connection and decrease the number of bridge circuits by 50%.
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