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柔性交流输电(FACTS)设备在电力系统和工业用户中得到了广泛应用,但其中大功率器件的频繁开关将产生很陡的瞬态脉冲,对二次侧电子设备造成电磁环境污染。针对用于轧钢机负荷的一套晶闸管控制电抗器型静态无功补偿器(SVC),基于Matlab软件系统建立了其动态仿真模型,以定量分析和预测电磁骚扰情况。轧钢机负荷的3个典型工作状态通过三相动态负荷模块实现,并参考IEEE标准搭建了其控制系统模型。将仿真结果与现场实测数据进行了比较,验证了该仿真模型的有效性。提出的建模策略对分析SVC的电磁骚扰机制和评估电磁环境提供了基本方法。
Flexible AC power transmission (FACTS) equipment has been widely used in power system and industrial users, but frequent switching of high-power devices will produce very steep transient pulses and cause electromagnetic environment pollution on the secondary-side electronic equipment. A set of thyristor controlled reactor static var compensator (SVC) for rolling mill load is established. Its dynamic simulation model is established based on Matlab software to quantitatively analyze and predict electromagnetic disturbances. Three typical working states of rolling mill load are realized by three-phase dynamic load module, and the control system model is established with reference to the IEEE standard. The simulation results are compared with the field measured data to verify the effectiveness of the simulation model. The proposed modeling strategy provides a basic method for analyzing the electromagnetic disturbance mechanism of SVC and evaluating the electromagnetic environment.