CPS-SPWM方法对柔性直流输电电能质量优化  

VSC-HVDC Power Quality Optimization in CPS-SPWM Method

作　　者：杨曦[1] 艾芊[1] 黄建涛[1] 

机构地区：[1]上海交通大学电气工程系,上海200240

出　　处：《华东电力》2013年第9期1821-1824,共4页East China Electric Power

基　　金：国家自然科学基金(51077092)~~

摘　　要：CPS-SPWN(载波相移脉宽调制)技术算法简单,适于快速实时控制场合。介绍了柔性直流输电中两电平级联变流器的结构和CPS-SPWM的基本调制原理;计算了两电平级联主要参数的选择,讨论了两电平级联条件下通过CPS-SPWM调制方法的提高电能质量的可行性,并通过PSCAD建模仿真,证明了CPS-SPWM调制和两电平级联结合在的显著优势。The practical and simple CPS-SPWM method is applicable for quick and real-time control. This paper in- troduces the structure of VSC-HVDC two-level cascade converter and the basic modulation principles of CPS-SPWM, calculates the main parameter choices for the two-level cascade, and discusses the feasibility of using CPS-SPWM method to improve the power quality in the state of two-level cascade. PSCAD modeling and simulation verifies the significant advanta~,e of the combination between CPS-SPWM and two-level cascade.

关 键 词：柔性直流输电 CPS_SPWM 电能质量 谐波 两电平级联 

分 类 号：TM74[电气工程—电力系统及自动化]