Synchronous motor excitated magnet by direct current can make output mechanism specialities matched load specialities by means of adjusting exciting current to change magnetic field and power factor.

这是因为电励磁的同步电动机可通过调节励磁电流来改变其磁场和功率因数，使输出的机械特性与负载特性相匹配。

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Based on the low-voltage distribution system or load compensation for industry, the aim of the thesis is to study the SVG that adopts direct-current control.

本文的研究目的是立足于低压配电系统或工业负荷补偿，且控制方法采用直接电流控制的静止无功发生器的研究。

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After the Advent of transformers, much of the load was served by alternating current instead of direct current.

变压器出现后，许多负荷由交流供电而不用直流供电。

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