摘要
在对市电的幅值及无功补偿场合,需对被补偿市电电压瞬时值进行过零检测.针对传统电网同步信号检测以及手动复位电路存在的问题,利用现场可编程逻辑门阵列(FPGA)板低电平复位的特点,提出了一种基于FPGA的电网同步信号检测电路.最后搭建实验平台进行了验证.实验结果表明,该电路具有结构简单、安全可靠等特点,解决了传统电网同步信号检测存在的电路复杂、可靠性差、安全性不高等问题,从而验证了本文所提出方法的可行性.
In the case of mains power and reactive power compensation, the instantaneous value of the compensated mains voltage needs to be tested for zero crossing. Aiming at the problems existing in the traditional grid synchronous signal detection and manual reset circuit, this paper utilizes the low level reset of field programmable gate array(FPGA) to come up with a novel grid synchronization signal detection circuit based on FPGA. Finally the paper sets up an experimental platform for verification. The experimental results show that the circuit is characterized by simple structure, safety and reliability, which helps solve the problems of complexity, poor reliability and low security of the synchronous signal detection in the traditional power grids, thus verifying the feasibility of the proposed method.
出处
《空军预警学院学报》
2018年第1期72-74,共3页
Journal of Air Force Early Warning Academy
关键词
电网同步信号
过零检测
现场可编程逻辑门阵列
grid synchronization signal
zero-crossing detection
field programmable gate array(FPGA)
