摘要
提出了专用型电压暂降监测装置的功能需求,以及基于STM32F4系列的ARM和Free RTOS操作系统构建的软硬件方案;讨论了时长优先法、事件优先法、事件特征优先法3种暂降启动及记录策略的原理和流程,并对其各自优缺点进行了分析比较;讨论了电压暂降单相启动事件、多相启动事件、重复启动事件的数据文件记录内容和事件特征描述方法;还对发生电压短时中断与电压暂升时的启动识别和记录进行了探讨。
This paper presents functional requirements of the voltage sag monitoring device, and the hardware and software scheme based on the STM32F4 series ARM and FreeRTOS operating system. Three kinds of sags recording strategy are discussed, including the time priority method, event priority method, and event characteristics priority method. Data file recording and feature extraction of single-phase event, multiphase event and repeated event are elaborated. Processing of voltage short interruption and voltage swell are also discussed.
出处
《供用电》
2018年第2期36-41,共6页
Distribution & Utilization
关键词
电压暂降:电能质量
短时中断
监测装置
电压暂升
voltage sag
power quality
short interruption
monitoring device
voltage swell
