轻型高压直流输电是在电压源换流器和绝缘栅双极晶体管基础上开发出来的一种新型输电技术。

The light HVDC transmission is a new power transmission technology based on the voltage source converters(VSCs) and IGBT power semiconductors.

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比起交流输电和本地发电，轻型高压直流输电系统不仅具有成本优势，它也对提高交流电网电能质量提供了新的途径。

Compared to the ac Transmission and local power generation, HVDC light system is not only cost advantages, it also exchanges to enhance ac power quality for a new approach.

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本文针对传统轻型高压直流输电系统所存在的缺点，采用一种新的模块化多电平换流器作为轻型高压直流输电系统的换流器。

In this paper, a new modular multilevel converter is used as a converter of HVDC Light, which avoids those disadvantages above effectively.

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