摘要
调制技术是链式STATCOM控制系统的核心部分,为了实现装置的高性能控制,采用单极倍频和载波移相相结合的调制技术。论文介绍了链式STATCOM的主电路结构,研究了单极倍频载波移相调制技术在链式STATCOM中的应用,通过详细的数学分析论证了其特性;最后,搭建了仿真模型,仿真结果表明链式STATCOM采用单极倍频载波移相调制技术可以将等效开关频率提高2N倍(N指每相级联单元数),从而有效地降低了输出谐波含量。
Modulation technology is the key part of cascaded STATCOM control system. In order to acquire excellent performance of cascaded STATCOM,a modulation technology is introduced which combines unipolar dual-frequency technology and carry phase shifting technology. The topology of the cascaded STATCOM is presented. The application of modulation technology is researched, and the merit is proved based on the mathematical analysis. The simulation results have proved the modulation technology can improve the equivalent carrier frequency and decrease the content of harmonic wave.
出处
《华北电力技术》
CAS
2012年第12期5-7,共3页
North China Electric Power
关键词
静止同步补偿器(STATCOM)
链式结构
调制技术
单极倍频
载波移相
static synchronous compensator （STATCOM）
cascaded structure
modulation technology
unipolar dualfrequency
carry phase shifting
