A Boost Conversion System Consisting of Multiple DC-DC Converter Modules for Interfacing Wind Farms and HVDC Transmission

被引：0

作者：

Sano, Kenichiro ^{[1
]}

Takasaki, Masahiro ^{[2
]}

机构：

[1] Cent Res Inst Elect Power Ind, Syst Engn Res Lab, Tokyo 201, Japan

[2] Tokyo Univ Sci, Dept Elect Engn, Tokyo, Japan

来源：

2013 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2013年

关键词：

offshore wind power generation; HVDC transmission; dc boost converter; voltage balancing control; undersea cable transmission; ACTIVE INPUT-VOLTAGE; SERIES; DESIGN; RATIO;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Recent offshore wind farms have increased their capacity and distance from the shore. To transmit the bulk power to the shore, some projects employ high voltage dc (HVDC) transmissions. Such wind farm has a local ac grid in their site to collect power from each generator, and then the voltage is increased by bulky and heavy step-up transformers. In order to simplify and to reduce the weight of the offshore facilities, dc collection grids have been also considered in recent years. However, a technical issue is the development of high voltage and high power converters to boost the dc voltage for the HVDC transmissions. This paper proposes a novel dc boost conversion system for interfacing the wind farms and the HVDC transmissions. The proposed boost conversion system consists of multiple isolated dc-dc converter modules. The modules are connected in parallel in the wind farm side and in series in the HVDC transmission side in order to realize high power and high step-up ratio. A control method is also developed for maintaining the voltage of the offshore power system and keeping equal voltage sharing among the series connected modules. Computer simulations are carried out to verify the basic operation characteristics of the proposed system.

引用

页码：2613 / 2618

页数：6

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