Cascaded power electronic transformer and control method therefor
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United States of America
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Sep 17, 2024
Grant Date -
Jul 20, 2023
app pub date -
May 21, 2021
filing date -
May 21, 2021
priority date (Note) -
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Abstract
A cascaded power electronic transformer and a method for controlling the same are provided. The method includes: calculating electrical angles θi1 and θkps of an sth transformer and a compensation electrical angle θj of a jth transformer; adding the compensation electrical angle θj to the electrical angle θkps of the jth transformer, to obtain a compensated electrical angle θkps of the jth transformer; and calculating a square wave of a bridge arm voltage of each of the m primary converters and the r secondary converters of the sth transformer based on the electrical angle θi1 and the electrical angle θkps of the sth transformer after compensation.
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