基于状态空间平均法的新型高压直流输电系统稳态建模分析  

Research on Novel HVDC Transmission System with Active Filter Function

作　　者：孙栩[1] 孔力[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《高压电器》2007年第6期427-430,共4页High Voltage Apparatus

摘　　要：运用状态空间平均法对新型高压直流输电系统进行分析,建立了新型高压直流输电系统的模型。并在开关函数的基础上进行傅立叶变换,通过忽略高次部分,在建模过程中,用开关函数来表示阀的开关状态,其状态组合可以表示整个电压源型换流器的状态,从而可以考虑换流器的自换相过程。结果表明,新型高压直流输电技术具有良好的性能。This paper analyses the basic principle of the novel high voltage direct current transmission system, and establishes a mathematical model. The control mode with which the novel HVDC system combines transferring power and compensating harmonic is analyzed through instanta- neous reactive power theory when the system is connected to the low voltage grid containing phase-controlled rectifier device that bring a great deal of harmonic. Finally, the fea- sibility of the method is verified by a prototype.

关 键 词：高压直流输电 电压源型换流器 建模 状态空间平均法 开关函数 

分 类 号：TM723[电气工程—电力系统及自动化]