新型直流输电系统谐波和间谐波传递特性  

Transfer characteristics of harmonic and interharmonic in a new HVDC system

作　　者：李建英[1,2] 罗隆福[2] 杨民生[1] 

机构地区：[1]湖南文理学院电气与信息工程学院,湖南常德415000 [2]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《湖南文理学院学报（自然科学版）》2016年第3期48-56,共9页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家自然科学基金项目(50907018);湖南省自然科学基金项目(13JJ9023);湖南文理学院科研项目(14YB09)

摘　　要：运用谐波调制理论,以新型直流输电系统为研究对象,对滤波换相换流器进行统一调制建模,分析了其交直流侧谐波和间谐波的产生机理、传递特性和相互作用。结果表明,与传统电网换相换流器相比,滤波换相换流器中变压器感应滤波技术的实施,使其交直流侧谐波之间的相互作用得到削弱,谐波和间谐波含量都在一定程度上有所降低。仿真结果验证了理论分析的正确性,从而为滤波换相换流器的进一步工程化应用奠定理论基础。Taking new DC transmission system as research object, the uniform modulation model of filtercommutated converter has been established by using the harmonic modulation theory. Then the generationmechanism, transfer characteristics and interaction are analyzed. Results show that, compared with traditional linecommutated converter, the harmonics interaction between ac-side and dc-side of filter commutated converter isweakened and the content of harmonic and interharmonic is reduced to a certain extent because of the transformerinductive filtering technology. Finally, simulation results show the validity of the theory reasoning and provide atheoretical basis for the engineering application of filter commutated converter.

关 键 词：直流输电 滤波换相换流器 间谐波 调制理论 传递特性 产生机理 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM46