多端柔性直流输电网络馈入的交直流电网可用输电能力评估

Recently, more and more Voltage Source Converter based multi-terminal HVDC （VSC-MTDC）projects are connected to the large power networks. The project proposes to study the Available Transfer Capability （ATC）calculation and evaluation for AC/DC hybrid system with VSC-MTDC connected. The research is focus on following topics: The project will investigate and establish the calculation model of ATC for AC/DC grids with VSC-MTDC connected ; the temporal and spatial correlation of wind power will be studied in the project and the evaluation model of probabilistic ATC is developed with large-scale wind farms which are connected by VSC-MTDC; the influence mechanism of the control strategy of VSC-MTDC on ATC computation is revealed and the coordinated control strategy of the VSC-MTDC will be investigated to improve the ATC of AC/DC grids. The research achievement will provide the theoretical guidance and technical support for the connection of VSC-MTDC.

针对多端柔性直流输电网络接入大电网，本项目致力于研究多端柔性直流输电馈入的网-网互联交直流电力系统可用输电的计算与评估。主要研究内容为：分析并建立多端柔性直流输电接入的交直流电网可用输电能力计算模型；研究风电功率的时空相关性，建立风电场通过多端柔性直流输电连接的交直流电网概率可用输电能力评估模型；分析多端柔性直流输电控制策略对ATC计算的影响机理，研究多端柔性直流输电对提高交直流电网可用输电能力的协调控制策略。此项目的研究成果将为多端柔性直流输电的并网提供理论指导和技术支撑。

针对多端柔性直流输电网络接入大电网，本项目致力于研究多端柔性直流输电馈入的网-网互联交直流电力系统最优潮流分布与可用输电评估。主要研究内容为:分析并建立多端柔性直流输电接入的交直流电网最优潮流计算模型;研究风电功率的时空相关性，建立风电场通过多端柔 性直流输电连接的交直流电网概率可用输电能力评估模型;分析多端柔性直流输电控制策略对 ATC计算的影响机理，研究多端柔性直流输电对提高交直流电网可用输电能力的协调控制策略。此项目的研究成果将为多端柔性直流输电的并网提供理论指导和技术支撑。