交直流混联大电网仿真技术现状及面临挑战  

Present Situation and Challenges of AC / DC Hybrid Large-Scale Power Grid Simulation Technology

作　　者：李亚楼[1] 张星[1] 李勇杰 陈绪江[1] 吴茂乾 

机构地区：[1]中国电力科学研究院,北京市100192 [2]国网奎屯供电公司,新疆维吾尔自治区奎屯市832200

出　　处：《电力建设》2015年第12期1-8,共8页Electric Power Construction

摘　　要：随着我国特高压交直流工程陆续投运,系统"强直弱交"问题突出,交直流、多直流、送受端之间的交互影响日益显著,电网运行复杂度迅速增加,对电网仿真的规模、精度和速度提出了更高要求。从电力系统建模、多时间尺度仿真、数模混合实时仿真3个方面梳理了仿真技术现状,针对交直流混联大电网发展需求,分析了仿真技术面临的挑战。指出提高直流、新能源、柔性交流输电系统(flexible alternative current transmission systems,FACTS)和负荷等复杂模型的建模精度,扩大电磁暂态仿真规模,提高大规模电网仿真效率,将是提高大电网仿真能力的研究重点。Along w ith the commissioning of UHV AC / DC transmission projects in China,the ＂ strong DC links w hile w eak AC grid＂ problem is outstanding,the interaction influences among AC / DC lines,multiple DC ones and sending /receiving ends are increasingly important,and the operation complexity of pow er grid is grow ing rapidly,so higher requirements on the scale,accuracy and speed of pow er grid simulation are put forw ard. From three aspects as pow er system modeling,multi-time-scale simulation and digital-analog hybrid real-time simulation,the current situation of simulation technology w as explored,and the challenges from the development of AC / DC hybrid large-scale grid w ere analyzed. To increase the capability for large-scale pow er grid simulation,researches w ill focused on improving modeling accuracy of complex models such as DC system,renew able energy,FACTS（ flexible alternative current transmission systems） and load,enlarging scale of electromagnetic simulation,and increasing efficiency of large-scale pow er grid simulation.

关 键 词：大电网仿真 系统建模 多时间尺度仿真 数模混合实时仿真 

分 类 号：TM743[电气工程—电力系统及自动化]