基于RTDS的TCR_TSC型SVC动态仿真模型

Dynamic simulation model of TSC - TCR type SVC based on RTDS

静止无功补偿器（SVC）系统是目前世界上柔性交流电输电系统发展的一个重要方向，具有增加输电网络的传输容量，提高输电网络运行稳定性等优点，相对传统的无功补偿方法更具有实时性和精确性。通过实时数字仿真器RTDS建立电网模型，仿真计算了静止无功补偿器（SVC）对系统故障、无功负荷波动等引起的电压波动值。结果显示，SVC能够快速跟踪电压变化量，平滑迅速地调整无功输出，有效补偿电压暂态波动，迅速恢复电压稳定。

Static Vat Compensator （SVC） system is a major orientation at present in the development of flexible AC trans - mission system of the world. It has the advantages of increasing the transmitting capacity and improving the operating stability of transmission network. Compared with traditional compensation method, it is more practical and accurate. The model of electric power network is built with the use of Real Time Digital Simulator（ RTDS）, The effect of vat compensation of SVC to voltage undulation that caused by system faults and var load undulation are presented. The results show that SVC can properly and smoothly tunes its var outputs for one operating condition, and can provide good voltage fluctuation control over a wide range of system operating conditions and promptly restores the voltage stabilization.