柔性直流輸電技術(shù)研究分析
朱勁松
(泰州供電公司,江蘇 泰州 225300)
摘 要: 介紹了柔性直流輸電的技術(shù)原理和控制策略,指出當(dāng)前控制方法研究成果中存在的問題,比較了柔性直流輸電技術(shù)幾種發(fā)展方向的研究現(xiàn)狀,分析了基于模塊化多電平換流器的輸電方式,根據(jù)目前國內(nèi)外柔性直流輸電示范工程,說明了柔性直流輸電技術(shù)在新能源、城市電網(wǎng)和智能電網(wǎng)中的應(yīng)用前景。
關(guān)鍵詞: 柔性直流輸電;電壓源換流器;控制策略;模塊化多電平;智能電網(wǎng)
中圖分類號(hào):TM721.1 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2014)01-0001-06
Analysis and Study of Flexible DC Transmission Technology
ZHU Jing-song
(Taizhou Power Supply Company, Taizhou 225300, China)
Abstract: Introduction was made to technical principle and control strategy of flexible DC transmission, existing problems in present control method study result pointed out. This paper compared several development directions of present study situations of flexible transmission technology and analyzed the transmission method based on modular multilevel converter. According to the present flexible DC transmission model both at home and abroad, description was made to the application prospect of flexible DC transmission technology in new energy, city grid and smart grid.
Key words: flexible DC transmission; voltage source converter; control strategy; modular multilevel converter; smart grid
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