电网技术2015，Vol.39Issue(9)：2597-2605,9.DOI:10.13335/j.1000-3673.pst.2015.09.034
高压交直流叠加输电特性研究及仿真
Research and Simulation for High Voltage Superposed AC and DC Transmission Characteristics
摘要
Abstract
As a new transmission way, without major modifications to the existing AC transmission line, high voltage superposed AC and DC power transmission technique can greatly solve the bottleneck problem that transmission capacity of AC transmission line is hard to approach the thermal stability limit, and it has a good prospect. To further advance the developments and applications of this technology, the main circuit structure and operational modes of DC superposition are analyzed, the mechanism of using Zigzag transformer to achieve superposition and separation of AC and DC, and to avoid magnetic saturation are analyzed in this paper. The transmission characteristics for the effect of superimposed proportion and transmission distance on the transmission capacity are studied, the relationship between optimal power transmission angle and the transmission distance is obtained. The simulation model for high voltage superposed AC and DC transmission with Zigzag transformer is set up to verify the correctness and validity of the transmission characteristics.关键词
高压交直流叠加输电/Zigzag变压器/磁饱和/输送容量/最优功率传输角/仿真Key words
high voltage superposed AC and DC/Zigzag transformer/magnetic saturation/transmission capacity/optimal power transmission angle/simulation分类
信息技术与安全科学引用本文复制引用
彭寒梅,李泓骏,周力行,李帅虎,李湾..高压交直流叠加输电特性研究及仿真[J].电网技术,2015,39(9):2597-2605,9.基金项目
国家自然科学基金重点项目(61233008). Project Supported by the Key Program of National Natural Science Foundation of China (61233008). （61233008）
