短路容量在滤波补偿中的应用分析

Application Analysis of Short Circuit Capacity in Filter Compensation

论述了短路容量在分析谐波电流是否满足国标允许值的要求、在有谐波源存在时电容器容量是否与系统发生并联谐振、判断无功变动量引起的电压波动与闪变以及对谐波治理效果的分析等方面的不同应用,并结合具体工程案例对短路容量在不同应用中的公式进行了案例分析与总结。阐明了短路容量(短路阻抗)是无功补偿和谐波治理中不可缺少的重要物理量,工程技术人员在无功补偿和谐波治理的设计研究中一定要对短路容量引起足够重视。

Short circuit capacity is an important parameter of the power system. This paper mainly discussed the short circuit capacity based on the analysis of harmonic current whether meet the requirements of national standard value, whether in the presence of harmonic source capacitor capacity and system parallel resonance, judgment reactive change of quantity caused by the voltage fluctuation and flicker, and the analysis of the effect of harmonic governance, etc, the application of combined with specific engineering case of short circuit capacity formulas in different applications has carried on the case analysis and summary. It illuminated the short circuit capacity（ short circuit impedance ） is the reactive power compensation and harmonic treatment of indispensable important physical quantities, engineering and technical personnel in the design of the reactive power compensation and harmonic control subjects in the study of short circuit capacity must to cause enough attention.