提出了一种与电容式电压互感器(CVT)一体化的嵌入式电网电压谐波监测方案,设计了一种以C8051单片机为核心的CVT 嵌入式电压谐波监测仪,实现了电压谐波实时监测及故障波形录入等功能。 关键词:FFT;单片机;谐波;电容式电压互感器(CVT) Abstract: This paper presents a power system voltage harmonic supervision scheme which is composed of a monitor and a field instrument embedded in the Capacitor Voltage TransformerCVT), and the built-in harmonic measuring instrument can real-time supervise voltage harmonics, capture fault waveform and transmit those data to the monitor with wireless communication module.. Key Words: FFT, Micro-controller, harmonics, CVT