摘要
在比较电力系统频率跟踪技术中软硬件同步优缺点的基础上,提出了一种基于FPGA的全数字锁相环(ADPLL)电路实现电力系统频率跟踪的技术;将FPGA技术运用于同步跟踪技术中,解决了软硬同步方法中的各个不足之处;全数字锁相环电路采用VHDL语言和FPGA设计,仿真波形和实验结果表明,该电路能够很好地跟踪电网频率的实时变化,相位误差仅为0.1%,频率测量误差仅为0.06%,实现了同频率同相位的锁定;速度快、精度高;对电网的谐波计算有较大的实际意义。
This paper analyses and compares advantages and disadvantages of hardware and software＇s synchronization in the new technology of tracing network frequency,It introduces a new technology in power system frequency tracking,which bases on all digital phase Locked Logic.FPGA technology is applied to the new technology of tracing network frequency to solve the lack of hardware and software＇s synchronization.This circuit of ADPLL is realized with VHDL and Filed Programmable Gate Array（FPGA）.The result of simulation and test shows that the error of Phase is only 0.1%,the error of frequency measurement is only 0.06%.the design is correct.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第12期2809-2811,共3页
Computer Measurement &Control
关键词
ADPLL
频率跟踪
FPGA
all digital phase locked logic（ADPLL）
frequency tracking
field programmable gate array（FPGA）
