摘要
电能质量监测是改善供电电能质量,降低电力系统故障的必要手段。本文设计了在电能质量监测系统中,起至关重要作用的信号采集电路。它是以A D S8364芯片为核心,外加输入信号的滤波和放大电路,在硬件连接上,还采用PLL锁相环技术来实现系统采样的逻辑控制,以达到同步的要求。最后结合实际电路,进行了系统的软件设计与实现。实践表明,该设计完全可以达到预期的采样精度,并能满足监测系统实时化的需要。
Power quality monitoring is an important means used to improve the power quality and depress failure in power supply system. The paper deals with the signal acquisition circuit, which is very important for the power quality monitoring system. It is designed based on ADS8364 and contains an input sign＇,d filter and an amplification circuit in its hardware, PLL technique is applied to realize logical control for system sampling and the synchronized request. With the circuit design, software of the system is designed and implemented. Practice shows that the design achieves the sampling precision and meets the needs of real-time requirement.
出处
《电测与仪表》
北大核心
2006年第4期43-45,51,共4页
Electrical Measurement & Instrumentation
关键词
电能质量
监测系统
信号采集
ADC
PLL
Power quality
Survey system
Signal collection
Analog to digital conversion
Phase locked logic
