【摘要】 随着各种敏感设备在工业中的广泛应用,电能质量尤其是电压跌落问题越来越引起人们关注。静止型无功补偿器SVC具有快速平滑的调节无功输出的特点,能够很好地对电压跌落进行抑制。从理论上分析了SVC能有效地抑制电压跌落的原理,推导了SVC补偿容量的计算方法,并且根据实际情况建立了SVC改善电压质量的电磁暂态仿真模型,针对用户端不同的电压跌落深度,SVC的不同安装地点进行SVC补偿的仿真,对仿真结果进行对比分析。更多还原

【Abstract】 Along with the wide application of sensitive equipment in industry,people are more and more concerned about power quality,especially voltage sags. Static Var Compensation,which has the characteristic of correcting reactive power fast and smoothly,can mitigate voltage sags well. This paper analyzes the reason why SVC can correct voltage sags effectively in theory,calculates the capability of SVC,and meanwhile builds up the electromagnetic transient model of compensating SVC which means to improve voltage quality based on the actual case. By simulation,it calculates the compensating capability of SVC due to different voltage sags and fixed locus,the results are compared.更多还原