摘要
HVDC系统交流滤波器的投入会产生较大涌流,会造成滤波器损坏,保护误动作,威胁系统安全。针对上述问题,采用了基于蒙特卡洛算法与自定义建模的仿真研究,对逆变侧滤波器涌流与表征三相电流不平衡性的零序电流进行了详细的计算,基于计算结果,提出加装POW装置与临时闭锁不平衡保护等抑制涌流影响的方法。
In HVDC system,the AC filter will produce larger inrush current during switching, which will cause damage to the filters, protection misoperation and threat to DC system security. To solve the problem, a simulation based on Monte Carlo algorithm and PSCAD user-definition model has been come up with. Make a lot of simulations about inrush current and the zero sequence current which stands for three-phase unbalanced inrush current at the inverter side. Based on these results, some methods which solve the effect of inrush current has been come up with, like erecting POW, locking the unbalanced protection temporarily.
出处
《高压电器》
CAS
CSCD
北大核心
2013年第4期92-97,共6页
High Voltage Apparatus
关键词
蒙特卡洛算法
滤波器
涌流
三相电流不平衡性
自定义建模
Monte Carlo algorithm
filter
inrush current
three-phase unbalanced current
user-defined modeling
