柔性直流输电在中国电网中的应用前景

An introduction of the application prospect of VSC-HVDC in power grid in China

柔性直流输电是一种新型直流输电技术,它采用IGBT作为开关器件,以电压源换流站为核心。相对于传统的直流输电以及交流输电,柔性直流输电具有更广阔的应用前景。本文主要介绍了柔性直流输电的基本原理、技术特点和应用领域,综述了柔性直流输电的国内外发展与应用现状,并结合我国新能源及电网的发展特点,探讨了柔性直流输电在新能源并网,构建城市供配电网,孤岛供电,构建智能电网等领域的应用前景,提出了推广应用柔性直流输电的建议。

VSC - HVDC is a kind of new DC transmission technology, which uses IGBT as switch device and is based on voltage source converter stations. Compared with the conventional HVDC technology, VSC - HVDC has a wider prospect ofapplication. This paper introduces the basic principles, technical features and applications of VSC - HVDC. With an overview of the VSC - HVDC research status at home and abroad and considering the characteristics of new energy and development of power grid in China, this paper discusses the application prospect of VSC - HVDC in such fields as new energy grid, construction of urban power grid, isolated power supply, building of smart grid . At last, suggestions for popularizingthe new technology are put forward.