基于VS2005平台的SEL保护定值参数换算工具的开发

Development of the conversion tool for the SEL protection device setting parameters based on VS2005 platform

为了提高SEL距离保护装置整定参数现场转换计算的现场工作效率和精度,对该装置整定计算所涉及的电气设备一、二次参数进行分组,根据阻抗参数及保护整定值之间的计算关系,确定了根据输入参数顺序自动感知拟求参数组别的逻辑,运用Visual Studio 2005软件开发平台,开发了一个具有自动感知能力、精确度高、使用方便的SEL距离保护定值参数计算转换工具。

To improve the fieldwork’s efficiency and accuracy of calculation and conversion about the SEL-221F distance protection relay’s setting parameters, this paper groups the primary and secondary parameters of the protected device concerned with setting and calculating. According to the calculation relationship between the impedance parameters and the protection settings and according to the input order, it determines the perceived logic of seeking parameters groups. Based on the Visual Studio 2005 software development platform, it develops this SEL distance protection relay’s setting parameters calculation and conversion tool, which is of auto-perceived capabilities, high accuracy, and ease of use.