零磁通电流互感器二次信号现场模拟方法

Field Simulation Method for Secondary Signal of Zero-flux Current Transformer

作为高压直流控制保护系统最重要的采样通道之一,零磁通电流互感器所测量得到的数据是高压直流输电的控制、保护和测量最关键的信息和可靠的凭证。现有的零磁通电流互感器二次信号现场模拟方法缺乏。提出了一种易于实施的零磁通电流互感器二次信号现场模拟方法,可满足控制、保护对零磁通电流互感器采样通道的准确度和广度测试需要。所提方法在(特)高压直流输电工程开展了零磁通电流互感器采样通道现场模拟测试,验证所提方法有效性。

The zero-flux current transformer is the most important sampling channel for the high voltage direct current control protection system.The measured data is the most critical information and reliable evidence for the control,protection and measurement of high voltage direct current.The field simulation method for secondary signal of zero-flux current transformer is lacking.A novel field simulation method for secondary signal of zero-flux current transformer is proposed.It can meet the need of zero-flux current transformer sampling channel testing in the accuracy and width for controlling and protecting.Its validity is verified by field simulation testing of zero-flux current transformer sampling channel in(ultra)high voltage direct current.