摘要
随着FACST技术的发展 ,SVG逐渐成为电力系统电压调整和无功补偿的重要元件 ,针对大容量SVG存在的开关频率与容量之间的矛盾 ,提出了一种无需互联控制的SVG并联运行控制方法 ,该方法以实现电压调整为目标 ,在电压反馈的基础上 ,附加补偿电流反馈 ,通过电流反馈的增益整定SVG电压 -电流特性曲线的斜率 ,实现按容量均分负荷 .并联运行既扩充了补偿容量 ,同时冗余配置增加了系统的可靠性 .通过仿真研究了各种工况下SVG并联运行的工作特性 。
A novel control has been proposed for voltage adjustment during interconnection based on, A compensating current feedback voltage feedback based on is introduced to adjust the slope of the voltage-current characteristic curve of each parallel connected SVG, by which the allocation of loads according to the capacity is realized.The parallel operation of SVG not only expands the compensating capacity, but also improves the reliability of the system by the redundant configuration. In this paper, the working characteristics of parallel SVGs under different conditions are studied and the validity of this method is proved through simulation.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2003年第4期462-465,468,共5页
Journal of Harbin Institute of Technology
