交流同步采样在断路器测控装置中的应用

真空断路器遥测装置中最重要的测量参数中最重要的是三相交流电参数，当电网频率
波动时，必须采用交流同步采样技术才能保证采样计算精度，同步检测和FFT 算法成为其核心技术，文章提出了如何使用硬件同步和软件同步相结合，以提高三相同步交流采样的精度和可靠性。
关键词：电力系统交流同步采样 FFT ARM LPC2138
Abstract: Three phase alternating current(AC) parameters are the main data which
will be inspected by vacuum breaker inspect equipments, AC synchronization sampling
technology must be adopted to ensure the sampling counting precision in inspect
equipments because of the undulation of electrical nets frequency. Synchronization
inspect and FFT algorithm are advanced in this paper to improve the precision and
dependability of three phase synchronization AC sampling through the connection of
software synchronization and hardware synchronization, the validity of this method
is proved in practice application.
Keywords: electric power system, vacuum breaker, AC synchronization sampling, FFT