二次消谐装置对抑制铁磁谐振有效性的仿真研究  

Simulation study on effectiveness of secondary resonance elimination device for ferroresonance elimination

作　　者：丁亚伟 刘岩 刘方 任幼逢 钟代宁 万亦如[2] 

机构地区：[1]洛阳电力局,河南洛阳471330 [2]浙江大学电气工程学院,浙江杭州310027

出　　处：《能源工程》2011年第4期15-19,共5页Energy Engineering

摘　　要：对10 kV配电网中采用二次消谐措施消除铁磁谐振过电压的有效性进行了仿真研究。结果表明,该方法的有效性建立在故障瞬间必须立即在PT开口三角绕组投入阻尼电阻且要求电阻阻值很小并有足够的热容量的基础上,但这在实际中较难实现,使得一些二次消谐装置不能有效消谐,消谐效果有待进一步改进。The effectiveness of secondary resonance elimination measure to eliminat ferroresonance overvoltage in 10 kV distribution network was simulated and analyzed.The results showed that this measure method required the damping resistance being accessed in the opening angular aperture of PT immediately at the fault moment,small damping resistance and large heat capacity,which were often difficult to achieve.As a result some of the secondary resonance elimination devices can not effectively work,and the effect of resonance elimination should to be further improved.

关 键 词：PT 铁磁谐振 二次消谐 阻尼电阻 

分 类 号：TM723[电气工程—电力系统及自动化]