用SVC提高区域电网的动态电压稳定性

摘要

The differences between power stability and frequency stability are analyzed. The necessity of regional maintains voltage stability is proposed. Under two conditions that reactive power compensator for the capacitors and SVC, the dynamic process of regional power grid voltage after large disturbances are simulated. The results show that using SVC can significantly improve the dynamic voltage stability of the regional power grid. The effects of SVC regulator time constant on dynamic process of voltage change are discussed.%分析电压稳定性与频率稳定性的不同,提出分区保持电压稳定性的必要性。仿真计算了无功补偿器为电容器和SVC两种情况下区域电网发生大干扰后电压变化的动态过程,说明采用SVC可以显著提高区域电网的动态电压稳定性,并探讨SVC调节的时间常数对电压变化的动态过程的影响。