基于D5000系统的带负荷试验自动校核方案研究

Research on automatic checking scheme for on-load test based on D5000 system

针对当前变电站带负荷试验依靠现场人员采样,操作繁琐、工作效率低的问题,本文设计开发基于D5000系统的带负荷试验自动校核平台。利用站内保护、测控等装置的采样信息,在主站各子系统内提取带负荷试验所需的电流和电压量,通过数据冗余提取保证用于校验的基准数据准确无误。自动校核平台能够实现电流相位、电流互感器(CT)电流比、极性和功角关系等内容的一键校核,并生成相量图。现场应用表明,基于D5000系统的带负荷试验自动校核平台能够快速准确地完成带负荷试验的所有内容,可减少带负荷试验的时间、提高带负荷试验的工作效率,对保障电网的安全稳定运行具有重要意义。

Aiming at the problems of cumbersome operation and low efficiency of on-load test in substation,an automatic verification platform of on-load test based on D5000 system is designed and developed.Using the sampling information of protection,measurement and control devices in the station,the current and voltage in each subsystem of the main station required for on-load test are extracted.The redundancy extraction of data ensures the accuracy of the benchmark data used for verification.The field application shows that the automatic verification platform for on-load test based on D5000 system can quickly and accurately complete all the contents of on-load test,reduce the test time and improve the work efficiency of on-load test,which is of great significance to ensure the safe and stable operation of power grid.