| 引用本文: | 刘皓明,戚庆茹,李扬,倪以信.中点钳位式三电平STATCOM的动态相量建模与仿真[J].电力自动化设备,2005,(8):18-22 |
| .Modeling and simulation of STATCOM system based on 3-level NPC inverter using dynamic phasors[J].Electric Power Automation Equipment,2005,(8):18-22 |
|
|
| 摘要: |
| 首先介绍了中点钳位式(NPC)三电平静止同步补偿器(STATCOM)的结构和原理．采用一种改进的空间矢量脉宽调制(SVPWM)控制方法，用以解决换流器直流侧两个电容的电压均衡问题：通过开关函数详细描述了换流桥的离散动态过程，使用动态相量法得到STATCOM的动态模型．并同时给出了电源、负荷和输电线路的动态相量模型：最后使用Simulink／Matlab平台分别实现了含NPC三电平STATCOM测试系统的电磁暂态模型和动态相量模型的建模．仿真结果验证了动态相量模型的精确性和有效性． |
| 关键词: 中点钳位式 三电平 静止同步补偿器 空间矢量脉宽调制 动态相量 |
| DOI： |
| 分类号:TM714-3 |
| 基金项目:国家重点基础研究发展计划(973计划);国家自然科学基金 |
|
| Modeling and simulation of STATCOM system based on 3-level NPC inverter using dynamic phasors |
|
LIU Hao-ming QI Qing-ru LI Yang NI Yi-Xin
|
| Abstract: |
| The structure and principle of STATCOM(STATic synchronous COMpensator) based on a three-level NPC(Neutral Point Clamped) converter are introduced.An improved SVPWM(Space Vector PWM) control strategy is used to balance the voltages of two capacitors at converter DC side.The discrete dynamic process of converter is described through switching function.The dynamic model of STATCOM is established by using dynamic phasors method,and the dynamic models of source,load,transmission line are achieved as well.A test system with NPC three-level STATCOM is modeled with Simulink /Matlab,and the results verify its accuracy and effectiveness. |
| Key words: NPC,three-level,STATCOM,SVPWM,dynamic phasors, |
