The proposed method can effectively control the ferroresonance over voltage from the chaos to period orbit and implement the transformation of system status between chaotic and ordered situation.

该方法能有效控制铁磁谐振过电压从混沌状态转移到期望的周期轨道，实现系统状态在混沌和有序之间的转换。

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Power electronic transformer (PET) is a new type of transformer, which realizes voltage transformation and power delivery in the power system through power electronic conversion.

电力电子变压器(PET)是一种通过电力电子变换实现电力系统电压变换和能量传递的新型变压器。

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The transformer is mainly used for power transmission and distribution and voltage transformation, is one of the important equipment of electrical operation.

变压器主要用于电能的传输、分配和电压的变换，是电气运行中的重要设备之一。

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