电炉SVC优化系统扰动分析

摘要

Perturbation analysis was carried out for electric furnace SVC optimization system, mainly including analysis of the system impedance fluctuation and power grid frequen-cy perturbation. Results of theoretical and simulative analysis showed that under system impedance fluctuation and power grid frequency perturbation, the harmonic suppression effect of composite filter was still better than that of passive filter, the electric furnace SVC opti-mization system had good disturbance resistance and the wave filtering performance would not be affected by internal and external disturbance.%针对电炉SVC优化系统进行了扰动分析.扰动分析主要包括系统阻抗波动和电网频率摄动分析.理论和仿真分析结果表明,在系统阻抗波动和电网频率摄动下,混合滤波器的谐波抑制效果仍然要强于无源滤波器,电炉SVC优化系统具有良好的抗干扰性能,滤波性能不会受到内部和外部干扰的影响.