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The AC choppers are usually used as voltage regulators and voltage sag compensators. However, the voltage compensation range is usually limited to %20 of the nominal voltage. Although the ac choppers can compensate deeper voltage sags from the structure point of view, it can be a challenging issue as it is not equipped with energy storage. To compensate deeper voltage sags with a series connected...
Since magnetic core of an inductor is easily saturated and then absorbs extra energy due to saturation, most of inductors are designed with an air core. The inductor requires so many wires to make large inductance and these expensive coils are one of the weak points of the dc reactor type fault current limiter (FCL). To solve this problem, reverse magnetization bias method is introduced. One kind...
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