一种基于FPGA的电网同步信号检测电路
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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.
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.
引文
[1]李勋.统一电能质量调节器(UPQC)的分析与控制[D].武汉:华中科技大学,2006:2-4.
[2]张柏生,汪萍,陈齐汉.有源逆变器的分析[J].苏州大学学报(工学版),2002,22(1):67-69.
[3]陈坚,康勇.电力电子学:电力电子变换和控制技术[M].3版.北京:高等教育出版社,2011:180-184.
[4]徐洋,黄智宇,李彦,等.基于Verilog HDL的FPGA设计与工程应用[M].北京:人民邮电出版社,2009:1-3.
[5]姚景远,朱忠尼,宋庆国,等.基于Verilog HDL语言的功率开关器件驱动信号死区时间设置[J].空军预警学院学报,2017,31(4):289-292.
[6]何明炜.市电电压过零检测器[J].实用电子文摘,1996(3):71.
[7]黄海宏,王海欣,张毅,等.PWM整流电路的原理分析[J].电气电子教学学报,2007,29(4):28-30.
[2]张柏生,汪萍,陈齐汉.有源逆变器的分析[J].苏州大学学报(工学版),2002,22(1):67-69.
[3]陈坚,康勇.电力电子学:电力电子变换和控制技术[M].3版.北京:高等教育出版社,2011:180-184.
[4]徐洋,黄智宇,李彦,等.基于Verilog HDL的FPGA设计与工程应用[M].北京:人民邮电出版社,2009:1-3.
[5]姚景远,朱忠尼,宋庆国,等.基于Verilog HDL语言的功率开关器件驱动信号死区时间设置[J].空军预警学院学报,2017,31(4):289-292.
[6]何明炜.市电电压过零检测器[J].实用电子文摘,1996(3):71.
[7]黄海宏,王海欣,张毅,等.PWM整流电路的原理分析[J].电气电子教学学报,2007,29(4):28-30.