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公开(公告)号：US20160043659A1
公开(公告)日：2016-02-11
申请号：US14823438
申请日：2015-08-11
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Yong XU , Fan ZHANG , Stefan SCHROEDER
Abstract: A multilevel converter comprising a first switching branch connected between a positive DC-link terminal and an AC output terminal and comprising series-connected first and second switching elements, a second switching branch connected between the AC output terminal and a negative DC-link terminal and comprising series-connected third and fourth switching elements, a third switching branch connected between a DC-link neutral point and a connection point of the first and the second switching elements, a fourth switching branch connected between the DC-link neutral point and a connection point of the third and the fourth switching elements, the fourth switching branch being completely independent from the third switching branch, and a flying capacitor connected between the connection point of the first and the second switching elements and the connection point of the third and the fourth switching elements.
Abstract translation: 一种多电平转换器，包括连接在正DC链路端子和AC输出端子之间并包括串联连接的第一和第二开关元件的第一开关支路，连接在AC输出端子和负DC链路端子之间的第二开关支路，以及 包括串联的第三和第四开关元件，连接在第一和第二开关元件的直流链路中性点和连接点之间的第三开关支路，连接在直流链路中性点和连接之间的第四开关支路 第三开关元件和第四开关元件的第一开关元件，第四开关支路完全独立于第三开关支路，以及连接在第一和第二开关元件的连接点与第三和第四开关元件的连接点之间的飞跨电容器 开关元件。
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公开(公告)号：US20170294850A1
公开(公告)日：2017-10-12
申请号：US15634150
申请日：2017-06-27
Applicant: GE Energy Power Conversion Technology Ltd
Inventor： Yong XU , Fan ZHANG , Stefan SCHROEDER
Abstract: A multilevel converter comprising a first switching branch connected between a positive DC-link terminal and an AC output terminal and comprising series-connected first and second switching elements, a second switching branch connected between the AC output terminal and a negative DC-link terminal and comprising series-connected third and fourth switching elements, a third switching branch connected between a DC-link neutral point and a connection point of the first and the second switching elements, a fourth switching branch connected between the DC-link neutral point and a connection point of the third and the fourth switching elements, the fourth switching branch being completely independent from the third switching branch, and a flying capacitor connected between the connection point of the first and the second switching elements and the connection point of the third and the fourth switching elements.
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