【摘要】 为了研究工频过电压与系统运行方式的关系,应用二端口理论,具体分析了它们的联系,并对一个真实的500kV输电系统,计算了不同运行方式下的工频过电压。研究和计算都表明,工频过电压幅值很大程度上决定于系统的运行方式,若系统运行方式不同,过电压可能会有很大差异。更多还原

【Abstract】 In order to investigate the relationship between power frequency over-voltage and operation mode of electric power system, theoretical analysis is made in this paper. Then, aiming at a practical 500 kV power system, a series of calculations are performed with various operation modes. The results show that power frequency over-voltage does have relationships with the operation mode to a great extent, and different operation modes may cause distinct values of over-voltage.更多还原