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Tripolar VSC-HVDC transmission system and method

机译：三极VSC-HVDC输电系统及方法

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摘要

A tripolar VSC-HVDC system and method include a rectifier and an inverter formed by a three-phase six-bridge arms modular multilevel converter (MMC) respectively, and two converter valves are arranged on the DC side of the rectifier and inverter respectively. The midpoint of upper and lower converter valves of the rectifier and inverter are connected with a pole 3 DC line by a smoothing reactor. Triggering of the upper and lower converter valves is controlled to change the DC voltage polarity of the pole 3 periodically, and tripolar DC transmission is realized by modulating current orders of the three poles.

机译：一种三极VSC-HVDC系统和方法，包括分别由三相六桥臂模块化多电平转换器（MMC）形成的整流器和逆变器，并且两个转换器阀分别布置在整流器和逆变器的DC侧。整流器和逆变器的上下换流阀的中点通过平滑电抗器与 3 极直流线连接。通过控制上下换向阀的触发来定期改变极 3 的直流电压极性，并通过调制三个极的电流阶数来实现三极直流传输。 展开▼

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公开/公告号US9948104B2

专利类型

公开/公告日2018-04-17

原文格式PDF

申请/专利权人 NR ELECTRIC CO. LTD.;NR ELECTRIC ENGINEERING CO. LTD.;
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申请/专利号US201515111216

发明设计人 MING HU;ZHENXIA SHAO;XINYAN JIAO;JIE TIAN;YU LU;GANG SHEN;
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申请日2015-01-22

分类号H02J1/08;H02J3/36;H02M5/458;

国家 US

入库时间 2022-08-21 12:58:55

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