摘要
将双级矩阵变换器代替传统倍频设备,采用整流级有零矢量的双空间矢量调制策略和零电流换流方法,实现柔性分频输电系统新型变频换流站。MATLAB的仿真结果表明,本方案能明显提高输电系统的传输效率,有效降低系统无功功率,抑制并网电流谐波分量。
Replaces AC-DC-AC transformation equipment with Two Stage Matrix Converter (TSMC) in Flexible Frac- tional Frequency Transmission System (FFFTS). Uses two space vectoi: modulation strategy of rectifier-level zero vector and zero-current commutation technology to achieve a new FFFTS frequency converter station. The simulation under MATLAB environment proves that the solution can improve the efficiency of power transmission, reduce the system reactive power and suppress the grid current harmonic effectively.
出处
《湖南工业大学学报》
2009年第5期60-65,共6页
Journal of Hunan University of Technology
基金
教育部全国工程硕士教育课题(GJW0701)
湖南省教育厅科研基金资助项目(07C760)
湖南省大学生研究性学习与创新性实验计划项目(湘教通[2009]320-88)
关键词
分频输电系统
TSMC
双空间矢量调制
仿真
fractional frequency transmission system
two stage matrix converter
two space vector modulation
simulation