基于序分量移频变换的三相交流系统宽频域电磁暂态仿真  

Wide Frequency-Domain Electromagnetic Transient Simulation for Three-Phase AC System Based on Sequence Component Modeling and Shifted Frequency Transform

作　　者：宋炎侃 陈颖[1,2] 黄少伟 于智同[1,2] 夏越 魏巍 SONG Yankan;CHEN Ying;HUANG Shaowei;YU Zhitong;XIA Yue;WEI Wei(Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing100084,China;Research Center of Cloud Simulation and Intelligent Decision-making,Tsinghua Sichuan EIRI,Chengdu610000,Sichuan Province,China;State Grid Sichuan Electrical Power Research Institute,Chengdu610000,Sichuan Province,China)

机构地区：[1]清华大学电机工程与应用电子技术系,北京市海淀区100084 [2]清华四川能源互联网研究院,云仿真与智能决策研究中心,四川省成都市610000 [3]国网四川省电力公司电力科学研究院,四川省成都市610000

出　　处：《电网技术》2018年第12期3864-3871,共8页Power System Technology

基　　金：国家自然科学基金(51607100);国家电网公司科技项目(弱送端电网多能源接入系统运行风险评估)~~

摘　　要：随着电网暂态过程复杂度逐步提升,传统交流系统机电暂态仿真和电磁暂态仿真程序逐渐无法满足仿真精度和效率需求。该文在移频分析基础上,提出一种面向三相对称交流电网的序分量移频仿真方法。且特别提出了在节点分析框架下的CP-SCSFA模型,结合相/序分量移频分析模型,实现了三相对称交流系统的序分量移频分析仿真。通过IEEE39节点算例测试表明,所提模型和算法支持具备较宽的仿真步长选择范围,较传统电磁暂态仿真、传统移频仿真和机电暂态仿真具备显著的仿真精度和效率优势。With increasing complexity of power system transient phenomena,traditional transient simulation program (TSP)and electromagnetic transient program(EMTP)of traditional AC systems cannot meet simulation accuracy and efficiency requirements.Based on shifted frequency analysis (SFA)technique,this paper proposes a sequence component-based SFA(SCSFA)method for3-phase symmetrical AC grid.In particular,a CP-SCSFA model of synchronous generator is developed,and an SCSFA simulation algorithm is proposed combining both SFA and SCSFA models. Test results show that the proposed model and algorithm support a wide range of simulation step sizes with advantages of significant simulation accuracy and efficiency over traditional EMTP,SFA and TSP applications.

关 键 词：电磁暂态 宽频域暂态 移频分析 序分量 

分 类 号：TM721[电气工程—电力系统及自动化]