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0 引言 在电力系统自动化的领域中,采用直流采样的测量方法(即通过电测量变送器进行测量)已沿用了几十年。随着数字技术和计算机技术的发展,采用交流采样的测量方法(即直接进行离散测量),在工程中也已得到了广泛的应用。但是,无论那种测量方法都会存在优缺点,应因地制宜使用。下面笔者根据工作经验,着重分析了电力系统电测量交直流采样测量方法及其应用条件。
0 Introduction In the field of power system automation, the use of DC sampling measurement method (that is measured by the electrical measuring transmitter) has been used for decades. With the development of digital technology and computer technology, the AC sampling method (ie direct discrete measurement) has been widely used in engineering. However, no matter what kind of measurement method there will be advantages and disadvantages, should be used according to local conditions. The following author based on work experience, focusing on the power system electrical measurement AC and DC sampling and measurement methods and application conditions.